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Journal articles on the topic 'Dorymyrmex'

Author: Grafiati

Published: 5 June 2025

Last updated: 16 July 2025

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Rossi, Marcelo Nogueira, and Harold Gordon Fowler. "Predaceous ant fauna in new sugarcane fields in the state of São Paulo, Brazil." Brazilian Archives of Biology and Technology 47, no. 5 (2004): 805–11. http://dx.doi.org/10.1590/s1516-89132004000500017.

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Predaceous ant fauna present in natural sugarcane field plantations in the state of São Paulo, Brazil, was evaluated by using sardine baits sampling technique. Three-month-old sugarcane plants were used for ant fauna estimation in two sugarcane mills, São João and Barra Mill. Twelve 30m X 30 m (900 m²) plots were previously delimited in each sugarcane mill for ant sampling. Ants were sampled in each plot by placing nine sardine baits in 12 mm X 75 mm plastic tubes. In the São João Mill, the predominant ant species observed was Solenopsis saevissima, followed by Dorymyrmex sp. 1, Pheidole sp. 2, and Crematogaster sp. 1. Considering only ant genus, Solenopsis, Pheidole, Dorymyrmex, and Crematogaster, were predominant. In the Barra Mill, the predominant ant genus sampled was Solenopsis, followed by Pheidole, Crematogaster, and Dorymyrmex. As generalist predatory ants could be one of the reasons for the naturally low levels of D. saccharalis infestation on sugarcane in the state of São Paulo, this study could be helpful for the researchers to gain knowledge about the fauna of predaceous ants which acted as predators of eggs and early larval stages of D. saccharalis in Brazil.

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Tofilski, Adam, and Francis L. W. Ratnieks. "Sand Pile Formation in Dorymyrmex Ants." Journal of Insect Behavior 18, no. 4 (2005): 505–12. http://dx.doi.org/10.1007/s10905-005-5608-8.

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Lattke, John E., Manuel Vélez, and Nikolay Aguirre. "Survey of Ants in Dry Forests of Southwestern Ecuador (Hymenoptera: Formicidae)." Sociobiology 63, no. 3 (2016): 909. http://dx.doi.org/10.13102/sociobiology.v63i3.1044.

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Two dry forests of southwestern Ecuador separated 43 km from each other, one situated at 460 m above sea level and the other at 680 m, are surveyed for ants giving a total of 28 species collected manually and from pitfall traps. Eleven species are shared between the sites whilst four are exclusive to one site and 13 to other. Differences in humidity, rainfall seasonality, and disturbance regimes may account for at least part of the differences observed between the ant communities of the two sites. Dorymyrmex pyramicus peruvianum Wheeler, 1919 andPseudomyrmex kuenckeli (Emery, 1890) are reported from Ecuador for the first time. Cardiocondyla emeryi Forel, 1881 and Camponotus conspicuus zonatus Emery, 1894are reported from mainland Ecuador for the first time. The genus Dorymyrmex Mayr, 1866 is recorded from Ecuador for the first time.

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Oberski, Jill T. "First Phylogenomic Assessment of the Amphitropical New World Ant Genus Dorymyrmex (Hymenoptera: Formicidae), a Longstanding Taxonomic Puzzle." Insect Systematics and Diversity 6, no. 1 (2022): 1–10. https://doi.org/10.1093/isd/ixab022.

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Oberski, Jill T. (2022): First Phylogenomic Assessment of the Amphitropical New World Ant Genus Dorymyrmex (Hymenoptera: Formicidae), a Longstanding Taxonomic Puzzle. Insect Systematics and Diversity (AIFB) 6 (1): 1-10, DOI: 10.1093/isd/ixab022, URL: http://dx.doi.org/10.1093/isd/ixab022

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Batista Silva, Derick, Sarah Cavalari Ladeia, Claumir Cesar Muniz, and Milaine Fernandes dos Santos. "Formigas como ferramenta para avaliação de qualidade ambiental em área urbana de Cáceres, Mato Grosso, Brasil." Peer Review 6, no. 14 (2024): 187–96. http://dx.doi.org/10.53660/prw-2423-4424.

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As formigas podem ser utilizadas como uma ferramenta de avaliação da qualidade ambiental. Nesse contexto, essa pesquisa teve por objetivo avaliar a riqueza e abundância de formigas epigéicas em áreas urbanas em Cáceres-MT. As coletas foram realizadas trimestralmente durante 2023, utilizando armadilhas de queda (tipo pitfall). Ao todo, coletou-se 5273 indivíduos distribuídos em sete subfamílias. A abundância total de formigas foi maior no mês de outubro, em áreas com piscicultura, inseridas próximas à borda de vegetação natural. Contudo, não houve diferenças para a abundância total de formigas em função da temperatura média do solo, e nem para a riqueza total de formigas em relação ao local e mês de coleta. Acromyrmex apresentou maior abundância em mata de galeria, enquanto Dorymyrmex em áreas com piscicultura inseridas próximas à borda de vegetação. Caracterísiticas ambientais influenciaram a abundância de formigas, com a ocorrência maior de formigas tolerantes à alta luminosidade, Dorymyrmex. Dessa maneira é essencial a manutenção da vegetação natural em áreas urbanas para contribuir com a conservação da biodiversidade e serviços ecossistêmicos.

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Snelling, Roy R. "Systematics of Nearctic ants of the genus Dorymyrmex (Hymenoptera: Formicidae)." Contributions in science 454 (July 27, 1995): 1–14. http://dx.doi.org/10.5962/p.208089.

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Snelling, Roy R. "Systematics of Nearctic ants of the genus Dorymyrmex (Hymenoptera: Formicidae)." Contributions in science 454 (July 27, 1995): 1–14. http://dx.doi.org/10.5962/p.208089.

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Silva, Derick Batista, Taina Pedroso Silva, Sarah Ladeia Cavalari, and Milaine Fernandes Dos Santos. "DINÂMICA POPULACIONAL DE FORMIGAS EM ÁREA COM PISCICULTURA COMO FERRAMENTA PARA AVALIAR A QUALIDADE AMBIENTAL." Acta Biologica Brasiliensia 7, no. 2 (2024): 46–57. https://doi.org/10.18554/acbiobras.v7i2.8048.

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Atividades humanas impactam a biodiversidade e consequentemente interferem no equilíbrio e manutenção de serviços ecossistêmicos. Nesse contexto, indicadores biológicos podem ser explorados como uma ferramenta para o monitoramento e avaliação da qualidade ambiental. O objetivo desse estudo foi avaliar a dinâmica populacional de formigas em área com piscicultura no Alto Pantanal em Cáceres-MT, Brasil. As coletas foram realizadas trimestralmente durante um ano, em área circundante à tanques de piscicultura e área circundante à fragmento de vegetação próximo à tanques de piscicultura. As formigas foram capturadas nas duas áreas por meio de armadilhas de queda tipo pitfall. Modelos lineares generalizados foram utilizados para analisar a abundância e riqueza de gêneros, além de variáveis ambientais locais: luminosidade, temperatura e umidade do solo. Nesse estudo, foram coletadas 3.707 formigas distribuídas em 7 subfamílias e 10 gêneros, sendo Dorymyrmex o mais ocorrente nas duas áreas. A abundância de formigas foi estatisticamente diferente entre as áreas. No entanto, não encontramos diferenças para a riqueza de formigas, ou na relação entre abundância e riqueza com as médias das variáveis ambientais. Em áreas com piscicultura, as formigas podem ser utilizadas como uma ferramenta para monitorar o impacto ambiental causado após a instalação de tanques. A maior ocorrência de Dorymyrmex nas duas áreas de investigação, indica a necessidade de implementação de estratégias para a conservação da biodiversidade visto que esse gênero ocorre abundantemente em áreas antropizadas.

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RADCHENKO, ALEXANDER G., BRIAN L. FISHER, FLAVIA A. ESTEVES, EKATERYNA V. MARTYNOVA, TATYANA N. BAZHENOVA, and SVETLANA N. LASARENKO. "Ant type specimens (Hymenoptera, Formicidae) in the collection of Volodymyr Opanasovych Karawajew. Communication 2. Dolichoderinae." Zootaxa 5432, no. 2 (2024): 279–88. http://dx.doi.org/10.11646/zootaxa.5432.2.7.

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The article is the second in a series of catalogues of ant type specimens from the collection of V. O. Karawajew, stored at the Schmalhausen Institute of Zoology of the National Academy of Sciences of Ukraine (SIZK, Kiev). It includes data on 214 type specimens of 45 taxa of the subfamily Dolichoderinae, collected from around the world and described by V. O. Karawajew and other myrmecologists, which are currently assigned to 11 genera (Anonychomyrma, Azteca, Bothriomyrmex, Dolichoderus, Dorymyrmex, Iridomyrmex, Linepithema, Liometopum, Ochetellus, Tapinoma and Technomyrmex).

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Cuezzo, Fabiana, and Roberto J. Guerrero. "The Ant GenusDorymyrmexMayr (Hymenoptera: Formicidae: Dolichoderinae) in Colombia." Psyche: A Journal of Entomology 2012 (2012): 1–24. http://dx.doi.org/10.1155/2012/516058.

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The aim of this paper is to actualize the taxonomy ofDorymyrmex, by addressing problems at both the genus and the species levels. We also explore the taxonomy and distribution ofDorymyrmexin Colombia. We list, diagnose, and key nine species in the country, including three new species:Dorymyrmex amazonicusn. sp. Cuezzo & Guerrero,Dorymyrmex xerophylusn. sp. Cuezzo & Guerrero, andDorymyrmex tuberosusn. sp. Cuezzo & Guerrero. We provide a detailed description of these new species based on the worker caste and, where possible, other castes. All localities whereDorymyrmexwas collected or cited in the literature were mapped to provide a graphical view of its range.

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Rando, J. S. S., L. S. Matsumoto, G. V. Silva, A. F. A. Quirino, and R. E. Haddad. "CARACTERIZAÇÃO DA MIRMECOFAUNA EM ESTABELECIMENTOS LIGADOS À ÁREA DA SAÚDE NO MUNICÍPIO DE BANDEIRANTES, PR." Arquivos do Instituto Biológico 76, no. 4 (2009): 665–71. http://dx.doi.org/10.1590/1808-1657v76p6652009.

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RESUMO As formigas urbanas são consideradas um problema grave na saúde pública pela capacidade de ocupar todos os ambientes e por serem vetores mecânicos de micro-organismos. O presente trabalho teve por objetivo verificar as espécies que ocorrem em estabelecimentos ligados a área da saúde, bem como os microrganismos veiculados por essas espécies. Em um total de 1.629 coletas realizadas de outubro a dezembro de 2007em um hospital, na Secretaria de Saúde e em um laboratório de análises clinicas, utilizando-se iscas atrativas não tóxicas, as seguintes espécies foram registradas foram registradas: Tapinoma melanocephalum (Fabricius, 1793); Monomorium pharaonis (Linnaeus, 1758); Paratrechina fulva (Mayr, 1862); Pheidole triconstricta Forel, 1886; Pheidole sp.1; Pheidole sp.2; Pheidole sp.3; Pheidole sp.4; Camponotus atriceps (Fr.Smith, 1858); Brachymyrmex sp.; Dorymyrmex sp. Como micro-organismos constatou-se a presença de bactérias: Staphylococcus sp.; Serratia sp.; Klebsiella sp.; Escherichia coli; Salmonella sp., Pseudomonas sp. e de fungos Cladosporium sp.; Fusarium sp.; Trichophyton sp.; Aspergillus sp. e Penicillium sp. além de leveduras.

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Aguilar-Méndez, Mario J., Madai Rosas-Mejía, Miguel Vásquez-Bolaños, Gloria Angélica González-Hernández, and Milan Janda. "New distributional records for ants and the evaluation of ant species richness and endemism patterns in Mexico." Biodiversity Data Journal 9 (May 10, 2021): e60630. https://doi.org/10.3897/BDJ.9.e60630.

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Ants (Formicidae) in Mexico have been usually undersampled despite their ecological significance and their utility as service providers and bioindicators. This study estimates the species richness and the narrow endemic species number of ants across Mexico. It also documents the presence of one species newly recorded in Mexico and 19 new state-based records of 14 species from central and north Mexico. No surveys have been performed in most of the localities where we report those records, suggesting the need of a higher sampling effort in the country.We present an ant species richness estimation in a grid of 0.5 degrees in Mexico and a narrow endemic ant species estimation. Stenamma schmitii is reported for the first time from Mexico. Additionally, the new state-based records of Azteca velox, Dorymyrmex insanus, Camponotus coruscus, Camponotus striatus, Formica propatula, Lasius latipes, Neivamyrmex melanocephalus, Neivamyrmex rugulosus, Syscia augustae, Atta texana, Cephalotes scutulatus, Crematogaster crinosa and Temnothorax andrei are reported.

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Sant'Ana, Michelle Viscardi, Rose Benedita Rodrigues Trindade, Cássia Cristina dos Santos Lopes, Odival Faccenda, and Wedson Desidério Fernandes. "Atividade de Forrageamento de Formigas (Hymenoptera: Formicidae) em Áreas de Mata e Campo de Gramíneas no Pantanal sul-mato-grossense." EntomoBrasilis 1, no. 2 (2008): 29–32. http://dx.doi.org/10.12741/ebrasilis.v1i2.11.

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O principal objetivo do estudo foi avaliar a taxa de exploração de iscas vivas por formigas em um Ambiente de Mata e de Campo de Gramíneas. O experimento foi desenvolvido no Pantanal sul-mato-grossense, no Município de Corumbá, MS, no período de outubro a novembro de 2006. Cupins do gênero Nasutitermes, serviram de iscas. Em cada área, 80 indivíduos dessa espécie permaneceram expostos no solo sobre uma base de papel filtro durante 10 Minutos. Observou-se a presença de 15 morfoespécies pertencentes a seis gêneros e cinco subfamílias, sendo mais freqüente Myrmicinae. No campo de gramíneas ocorreram maior riqueza e diversidade de espécies. Wasmania sp.1 foi responsável pelo maior número de iscas removidas na Mata e Dorymyrmex sp. 1 no Campo de Gramíneas. A diferença no tempo médio para remoção das iscas nas duas áreas (mata e gramínea) não foi significativa. Das 160 iscas oferecidas durante o experimento, 115 sofreram atacadas por formigas: 69 na mata e 46 no campo de gramínea. Activity of Ants (Hymenoptera: Formicidae) Foraging in a Forest Patch and in a subtropical seasonally flooded lowland grassland in the Pantanal from Mato Grosso do Sul, Brazil.Abstract. The main goal of this research was to evaluate the exploitation rate of live baits for ants in an environment of forest patches and subtropical seasonally flooded lowland grassland. The samples were collected from October to November 2006 in the Pantanal, sub-regions Miranda and Abobral, municipality of Corumbá, Mato Grosso do Sul, Center West Brazil. Termites of the genera Nasutitermes were used as bait, and remained exposed for 10 minutes on the soil. Eighty baits were used in each environment. Fifteen ant morphospecies in six genera and five subfamilies were collected, and the Myrmicinae were the most frequent subfamily. We found larger richness and diversity of species in the subtropical seasonally flooded lowland grassland. Wasmania sp.1 was responsible for the largest number of removed baits (30) in the Forest Patch and Dorymyrmex sp. 1 in the subtropical seasonally flooded lowland grassland. The difference in the average time for removal of the baits from the two areas was not significant. From the 160 baits offered during the experiment, 115 were attacked by ants, 69 in the Forest Patch and 46 in the grassland.

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Rabello Casagrande, Gabriela Cristina, Juliane Dambros, Ricardo Lopes Tortorela De Andrade, and Leandro Dênis Battirola. "Bioaccumulation of heavy metals in the bodies of workers of Camponotus atriceps and Dorymyrmex brunneus (Hymenoptera, Formicidae): an exploratory study." Revista Colombiana de Entomología 43, no. 1 (2017): 64. http://dx.doi.org/10.25100/socolen.v43i1.6651.

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This study quantified the concentration of heavy metals (copper, zinc, cadmium, lead and nickel) in the biomass of two ant species, Camponotus atriceps and Dorymyrmex brunneus, which are dominant in forests and crop areas, respectively, in Sinop, Mato Grosso, Brazil. Ant sampling pitfall traps were used in both land use types, and metal concentrations in the biomass were obtained by means of atomic absorption spectrometry. The two species were selected because they were the most abundant in each land use type, considering the volume of biomass necessary for the chemical analysis. The results showed that with the exception of copper, heavy metals revealed higher concentrations in D. brunneus from crop areas than in C. atriceps from native forests. Such results are associated with the fact that the crop areas received high inputs of agrochemicals through the management of corn and soybean crops. Thus, ants are good indicators of contamination and environmental pollution in tropical regions, as the highest concentration of heavy metals was expected in the crop areas in relation to the adjacent forest area.

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Calixto, Alejandro A., Marvin K. Harris, and Charles Barr. "Resurgence and Persistence of Dorymyrmex flavus After Reduction of Solenopsis invicta Buren with a Broadcast Bait." Environmental Entomology 36, no. 3 (2007): 549–54. http://dx.doi.org/10.1603/0046-225x(2007)36[549:rapodf]2.0.co;2.

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HIDALGO, Paulina, Isaac PEÑA-VILLALOBOS, Hugo TORRES-CONTRERAS, and Pablo SABAT. "Seasonal niche differentiation of Camponotus morosus and Dorymyrmex goetschi (Hymenoptera: Formicidae) in sandy beach habitats: Insights from stable isotope analysis." European Journal of Entomology 121 (October 8, 2024): 347–54. http://dx.doi.org/10.14411/eje.2024.036.

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Venable, Cameron P., and Tracy Langkilde. "Eastern Fence Lizards (Sceloporus undulatus) display an ontogenetic shift in relative consumption of native and invasive prey." Canadian Journal of Zoology 97, no. 5 (2019): 419–23. http://dx.doi.org/10.1139/cjz-2018-0228.

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Interactions between invasive prey and native predators can provide an opportunity to better understand predator–prey dynamics and how these may change through ontogeny. Eastern Fence Lizards (Sceloporus undulatus (Bosc and Daudin in Sonnini and Latreille, 1801)) are ant specialist, particularly as juveniles. Invasive red imported fire ants (Solenopsis invicta Buren, 1972) pose a lethal risk to S. undulatus that eat them, especially smaller-bodied juveniles. We examine ontogenetic shifts in S. undulatus consumption of toxic invasive fire ants versus palatable native pyramid ants (Dorymyrmex bureni (Trager, 1988)). We predicted that hatchlings should avoid eating fire ants in favor of native ants, whereas less-vulnerable adults should take advantage of both prey sources. However, when given the choice between fire ants and native ants, hatchlings consumed similar numbers of these species, whereas adults consumed nearly three times as many native ants as invasive fire ants. Increased consumption of fire ants in adulthood could be the result of lifetime experience, strategies to safely consume fire ants, ontogenetic shifts in the ability to distinguish between ants, or reduced costs to adults of eating venomous ants. Future research should aim to distinguish these alternative mechanisms and examine the long-term consequences of native species incorporating toxic invasive prey into their diets.

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Hernández-Ruiz, Patricia, Gabriela Castaño-Meneses, and Zenón Cano-Santana. "Composition and functional groups of epiedaphic ants (Hymenoptera: Formicidae) in irrigated agroecosystem and in nonagricultural areas." Pesquisa Agropecuária Brasileira 44, no. 8 (2009): 904–10. http://dx.doi.org/10.1590/s0100-204x2009000800015.

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The objective of this work was to evaluate the species composition and functional groups of ants in nonagricultural (NA) and in irrigated areas (S, seasonal irrigation; P, irrigation with well water; W, irrigation with wastewater) in an arid agricultural region in central Mexico, throughout 2005 and 2006. A total of 52,358 ants belonging to 6 subfamilies, 21 genera and 39 species was collected using pitfall traps. The species best represented in all plots were: Forelius pruinosus, Pheidole obtusospinosa, Monomorium minimum and Dorymyrmex spp. NA plots recorded the highest density of ants. The highest values for diversity (H') and equitativity (J') were recorded in NA and P plots, while the lowest were recorded in W plots. Cluster analysis showed two different groups regarding species composition: NA-S and W-P. Functional groups recorded were: dominant Dolichoderinae, three species; subordinate Camponotini, five species; hot climate specialists, three species; tropical climate specialists, seven species; cold climate specialists, five species; cryptic species, one species; opportunists, six species; generalized Myrmicinae, nine species. Agricultural activity affects the structure of the ant community with epiedaphic forage, and the constant use of irrigation wastewater in conjunction with intense agricultural practices has negative effect upon species richness of epiedaphic ants.

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Eisawi, Khalid, Indra Prasad Subedi, Christine Dakélé Yodé, and Hong He. "Ants (Hymenoptera: Formicidae) increase predation of Belenois solilucis (Lepidoptera: Pieridae) eggs in organic agriculture production systems: a multiple-site field study at Rashad, Sudan." Sociobiology 69, no. 2 (2022): e7746. http://dx.doi.org/10.13102/sociobiology.v69i2.7746.

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Organic farming is becoming more popular as there is a greater demand for pesticide-free food. Pest control in organic agricultural production requires a set of skills, including the identification of effective predators and land-use practices. Predation by selected Coleopteran, Dipteran, and Hemipteran insects and Araneae is well established, whereas the predatory role of ants (Hymenoptera: Formicidae) has received little attention in the Rashad district, Sudan. This study was carried out to assess the predation rates of Belenois solilucis eggs and the impact of the land use type around the properties on these rates. An experimente involving predation tests on Belenois solilucis eggs and fauna sampling were conducted in 18 areas of organic agriculture in the Rashad district. The study showed that ants can reduce the eggs population by 26.8% per day. At the same time, other predator taxa, primarily Coleoptera, from Coccinellidae and Staphylinidae families, removed only 13% of the eggs. Ant species with the most significant recruiting power were Axinidris acholli, Tapinoma carininotum, and Technomyrmex moerens. Ant genera such as Linepithema, Dorymyrmex, and Camponotus ants were also frequently observed. The proportion of the planted area within a 500-meter radius, in addition to the interaction of other landscape categories, had a minor influence on predation, but only when the predators were not ants. The landscape does not affect predation by predators in general, including ants, or on ant predation in particular.

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de Oliveira, Bruna M. S., Carlisson R. Melo, Ane C. C. Santos та ін. "Essential oils from Varronia curassavica (Cordiaceae) accessions and their compounds (E)-caryophyllene and α-humulene as an alternative to control Dorymyrmex thoracius (Formicidae: Dolichoderinae)". Environmental Science and Pollution Research 26, № 7 (2019): 6602–12. http://dx.doi.org/10.1007/s11356-018-4044-1.

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Do Vale Júnior, José Frutuoso, Antonio Cesar Silva Lima, Márcia Patricia Nascimento Cidade, Hugo Falkyner Da Silva Bandeira, and Diego Lima de Souza De Souza Cruz. "Composição da assembleia de formigas em área de savana no norte da Amazônia." REVISTA AGRO@MBIENTE ON-LINE 11, no. 2 (2017): 153. http://dx.doi.org/10.18227/1982-8470ragro.v11i2.3813.

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Os formicídeos constituem um dos grupos mais importante de insetos sociais do solo, apontados como potenciais indicadores biológicos da degradação ambiental e fornecedores de informações importantes em planos de manejo e conservação de uma dada região. Assim, objetivou-se com este trabalho inventariar a composição da assembleia de formigas e estabelecer as espécies predominantes, utilizando dois diferentes métodos de coleta (pitfall e isca de sardinha), em ecossistema de savana amazônica. As coletas das formigas foram realizadas em seis épocas, entre os meses de dezembro/2010 e janeiro/2011, em 12 parcelas de 250 m de comprimento, com 10 pontos de amostragens, distanciados 25 m um do outro. Em cada ponto, utilizou-se dois métodos de coleta: pitfall e isca de sardinha, totalizando 120 subamostras por método. Após as coletas, as amostras foram levadas ao Laboratório de Invertebrados Aquáticos do Centro de Biodiversidade (CBIO/ UFRR) para triagem, e os espécimes coletados foram acondicionados em frascos contendo álcool 70%, para posterior classificação taxonômica. A identificação dos formicídeos até espécie e morfoespécies foi realizada no Instituto Nacional de Pesquisas da Amazônia - INPA. O material testemunho se encontra depositado na coleção de invertebrados do INPA. Constatou-se que os gêneros de maior ocorrência foram: Camponotus, Crematogaster e Dorymyrmex; enquanto os de maior riqueza de espécies foram: Pheidole, Solenopsis e Camponotus. As espécies Crematogaster abstinens e Camponotus novogranadensis foram predominantes na savana estudada. Esse é o primeiro registro de Kalathomyrmex emeryi no estado de Roraima. As coletas realizadas com pitfall foram mais eficientes para a avaliação da riqueza de formigas.

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Ferguson, J. Scott, Alan J. Hosmer, and Michael E. Green. "Rate of Removal of Fenoxycarb (Logic®) Fire Ant Bait by Red Imported Fire Ants (Hymenoptera: Formicidae) from Treated Pastures." Journal of Entomological Science 31, no. 1 (1996): 20–32. http://dx.doi.org/10.18474/0749-8004-31.1.20.

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Field studies were conducted in Vero Beach, FL, in November 1993 and 1994 to determine the rate of removal of Logic® fire ant bait by red imported fire ants, Solenopsis invicta Buren, from treated improved pastures of bahiagrass, Paspalum notatum Fluegge. Logic® fire ant bait was applied at the maximum label rate of 1.68 kg/ha (16.8 g ai/ha). In 1993, fire ants had removed approximately 35% of the granules by 4 h after application and about 67% by 12 h. By 24 h, 82% had been removed. By the last count (48 h after application) about 95% had been removed. In 1994, the granules were removed slightly faster, with about 60% removed by 4 h and 92% by 24 h after application. Nearly 97% of the granules had been removed by the last count (30 h after application). In 1993, several mounds of the ant, Dorymyrmex bureni Trager, were found in the test area while in 1994 only red imported fire ant mounds were present. The results indicate that Logic® fire ant bait is found and harvested very rapidly by fire ant workers under favorable foraging conditions and that a dose which will provide effective population reduction can be obtained in 12 to 24 h after application at 1.68 kg/ha. Additionally, with its low use rate, specificity to certain insects and rapid removal by fire ants, Logic® fire ant bait when used according to label poses minimal risk to non-target organisms.

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Guedes, Tainá K., and Lucas A. Kaminski. "Behavioral observations of ant-butterfly symbioses in the Pantanal wetlands of west-central Brazil." Tropical Lepidoptera Research 33, no. 2 (2023): 111–16. https://doi.org/10.5281/zenodo.8140774.

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Halawani, Omar, Robert R. Dunn, Amy M. Grunden, and Adrian A. Smith. "Bacterial exposure leads to variable mortality but not a measurable increase in surface antimicrobials across ant species." PeerJ 8 (December 3, 2020): e10412. http://dx.doi.org/10.7717/peerj.10412.

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Social insects have co-existed with microbial species for millions of years and have evolved a diversity of collective defenses, including the use of antimicrobials. While many studies have revealed strategies that ants use against microbial entomopathogens, and several have shown ant-produced compounds inhibit environmental bacterial growth, few studies have tested whether exposure to environmental bacteria represents a health threat to ants. We compare four ant species’ responses to exposure to Escherichia coli and Staphylococcus epidermidis bacteria in order to broaden our understanding of microbial health-threats to ants and their ability to defend against them. In a first experiment, we measure worker mortality of Solenopsis invicta, Brachymyrmex chinensis, Aphaenogaster rudis, and Dorymyrmex bureni in response to exposure to E. coli and S. epidermidis. We found that exposure to E. coli was lethal for S. invicta and D. bureni, while all other effects of exposure were not different from experimental controls. In a second experiment, we compared the antimicrobial ability of surface extracts from bacteria-exposed and non-exposed S. invicta and B. chinensis worker ants, to see if exposure to E. coli or S. epidermidis led to an increase in antimicrobial compounds. We found no difference in the inhibitory effects from either treatment group in either species. Our results demonstrate the susceptibility to bacteria is varied across ant species. This variation may correlate with an ant species’ use of surface antimicrobials, as we found significant mortality effects in species which also were producing antimicrobials. Further exploration of a wide range of both bacteria and ant species is likely to reveal unique and nuanced antimicrobial strategies and deepen our understanding of how ant societies respond to microbial health threats.

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Marsaro Júnior, Alberto Luiz, Jacques Hubert Charles Delabie, and Paulo Roberto Valle da Silva Pereira. "Estudo preliminar sobre formigas num plantio de canola, Brassica napus L. (Brassicaceae), em Passo Fundo, Rio Grande do Sul, Brasil." Brazilian Journal of Animal and Environmental Research 6, no. 3 (2023): 2880–94. http://dx.doi.org/10.34188/bjaerv6n3-071.

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No Brasil, a canola, Brassica napus, é associada a uma grande diversidade de artrópodes, destacando-se fitófagos, predadores e polinizadores que visitam o cultivo em busca de recursos alimentares. Apesar dos estudos já realizados na canola, ainda são escassas as informações acerca das formigas que ocorrem nessa cultura. Por isso, este estudo teve como objetivo realizar um levantamento preliminar desses insetos em uma área cultivada com canola no estado do Rio Grande do Sul. O estudo foi conduzido numa área experimental de 800 m2, da Embrapa Trigo, Passo Fundo, que foi plantada com o híbrido Hyola 433, durante dois anos, em maio de 2015 e em maio de 2016. As coletas de formigas foram realizadas com armadilhas-de-solo do tipo “pitfall trap”, contendo solução conservante, e que ficavam no campo por sete dias. Após esse período, as formigas eram coletadas e a solução era reposta para a coleta da próxima semana. Em 2015, as coletas foram realizadas de junho a setembro (15 amostragens), e em 2016, de junho a outubro (20 amostragens). Foram coletados 414 indivíduos de formigas, distribuídos em quatro subfamílias (Dolichoderinae, Formicinae, Myrmicinae e Ponerinae), contemplando 31 espécies ou morfoespécies. A subfamília que predominou foi Myrmicinae (87,2%), que também apresentou o maior número de espécies identificadas (n=19). Exemplares de Pheidole foram os mais abundantes (76,8%) e também esse gênero foi o que apresentou a maior diversidade de espécies (10). As formigas Dorymyrmex jheringi, Pheidole cramptoni, Pheidole eidmanni e Pheidole industa estão sendo registradas pela primeira vez para o estado do Rio Grande do Sul, e, no caso da última citada, para o Brasil. O cultivo da canola apresentou uma grande diversidade de formigas, incluindo-se espécies fitófagas, predadoras e uma de parasita social de Acromyrmex: Pseudoatta argentina.

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"Dorymyrmex flavus." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.19506.

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"Dorymyrmex bureni." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.119442.

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Oberski, Jill T. "Ultraconserved element (UCE) phylogenomics illuminates the evolutionary history and biogeography of Dorymyrmex pyramid ants." Systematic Entomology, November 18, 2024. http://dx.doi.org/10.1111/syen.12658.

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AbstractLatitudinal diversity gradients are one of the most widely discussed patterns in global biogeography, generally in the context of high diversity in tropical regions. In contrast, ‘amphitropical’ or ‘inverse’ distributions, once thought to be unusual, are increasingly recognized as common among many hymenopteran insects. One such group is the ant genus Dorymyrmex, which specializes in arid habitats throughout the Americas. To evaluate when and how Dorymyrmex acquired its present‐day distribution, I sequenced partial genomes of 167 Dorymyrmex representing 69 species by targeting ultraconserved elements (UCEs). A matrix of 870 genetic loci was used to infer maximum likelihood and Bayesian phylogenies, estimate divergence dates and reconstruct hypothesized ancestral areas. These new analyses reveal that Dorymyrmex comprises four species groups, the D. flavescens, tener, wolffhuegeli, and pyramicus groups. The D. pyramicus group likely dispersed from South America to North America only once, via Central America. Like many Hymenoptera, this dispersal occurred before the traditional closure date of the Isthmus of Panama, corroborating and extending the results of previous studies. Finally, I discuss life history strategies of Dorymyrmex that may have contributed to the geographic and genetic radiation of the D. pyramicus group, detail significant insights into Dorymyrmex morphology and classical taxonomy with new comparative illustrations, and provide recommendations for future work.

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Abstract Dorymyrmex Mayr 1866, the ‘pyramid ants’ or ‘cone ants’, are conspicuous inhabitants of arid landscapes across the Americas. Ranging from the Great Plains to Patagonia, they are concentrated north and south of the tropics in contrast to the latitudinal diversity gradient canon. Despite being frequently collected and ecologically important, Dorymyrmex ants exemplify the taxonomic neglect typical in the subfamily Dolichoderinae. The genus has never had the benefit of a global revision, and even the major lineages are still uncertain. This work characterizes the issues at hand and ushers 22 Dorymyrmex species into the world of modern-day phylogenomics: By targeting ultraconserved elements (UCEs) across the genome, I construct an alignment of 1,891 loci, infer phylogenies under maximum likelihood and Bayesian approaches, and estimate divergence dates. Three major clades of Dorymyrmex emerge with maximal support, corresponding to former genera: Dorymyrmex sensu stricto, Araucomyrmex Gallardo 1919, and Conomyrma Forel 1913. The pyramicus group (‘Conomyrma’) shows a recent, rapid radiation with minimal morphological differentiation, reaffirming the difficulty of species delimitation in this widespread clade. Finally, I observe a general south-to-north pattern of dispersal, likely by way of savanna ‘stepping stones’ across the tropics during cooler, drier periods. Intercontinental dispersal occurred after the hypothetical Caribbean landspan in the Miocene, but before the Pleistocene or the completion of the Panamanian isthmus, suggesting dispersal by flight. This corroborates patterns observed in other arid-adapted amphitropical New World taxa. Characterizing the major Dorymyrmex species groups is an important first step towards stable taxonomic definitions—which underpin active studies in behavior, chemical ecology, and physiology.

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"Dorymyrmex insanus (pyramid ant)." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.19507.

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Godfrey, R. Keating, Jill T. Oberski, Taylor Allmark, Caleb Givens, Jessica Hernandez-Rivera, and Wulfila Gronenberg. "Olfactory System Morphology Suggests Colony Size Drives Trait Evolution in Odorous Ants (Formicidae: Dolichoderinae)." Frontiers in Ecology and Evolution 9 (October 28, 2021). http://dx.doi.org/10.3389/fevo.2021.733023.

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In social insects colony fitness is determined in part by individual worker phenotypes. Across ant species, colony size varies greatly and is thought to affect worker trait variation in both proximate and ultimate ways. Little is known about the relationship between colony size and worker trait evolution, but hypotheses addressing the role of social structure in brain evolution suggest workers of small-colony species may have larger brains or larger brain regions necessary for complex behaviors. In previous work on odorous ants (Formicidae: Dolichoderinae) we found no correlation between colony size and these brain properties, but found that relative antennal lobe size scaled negatively with colony size. Therefore, we now test whether sensory systems scale with colony size, with particular attention to olfactory components thought to be involved in nestmate recognition. Across three species of odorous ants, Forelius mccooki, Dorymyrmex insanus, and D. bicolor, which overlap in habitat and foraging ecology but vary in colony size, we compare olfactory sensory structures, comparing those thought to be involved in nestmate recognition. We use the visual system, a sensory modality not as important in social communication in ants, as a control comparison. We find that body size scaling largely explains differences in eye size, antennal length, antennal sensilla density, and total number of olfactory glomeruli across these species. However, sensilla basiconica and olfactory glomeruli in the T6 cluster of the antennal lobe, structures known to be involved in nestmate recognition, do not follow body size scaling observed for other structures. Instead, we find evidence from the closely related Dorymyrmex species that the larger colony species, D. bicolor, invests more in structures implicated in nestmate recognition. To test for functional consequences, we compare nestmate and non-nestmate interactions between these two species and find D. bicolor pairs of either type engage in more interactions than D. insaus pairs. Thus, we do not find evidence supporting a universal pattern of sensory system scaling associated with changes in colony size, but hypothesize that observed differences in the olfactory components in two closely related Dorymyrmex species are evidence of a link between colony size and sensory trait evolution.

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Oi, David H., Rachel A. Atchison, and Jennifer A. Henke. "Acceptance of fire ant baits by nontarget ants in Florida and California." Florida Entomologist 108, no. 1 (2025). https://doi.org/10.1515/flaent-2024-0076.

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Abstract Red imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae), infestations can be cleared from areas with baits, but these areas are often reinfested. To facilitate biotic resistance strategies to reinfestation, acceptance of eight commercial fire ant baits by nontarget ants was examined in Florida and California. Baits contained active ingredients of either indoxacarb, spinosad, abamectin, pyriproxyfen, metaflumizone, hydramethylnon, and/or (s)-methoprene. In Florida, baits were tested on Monomorium floricola (Jerdon), Dorymyrmex bureni (Trager); Pheidole megacephala (Fabricius), and Pogonomyrmex badius (Latreille). The percentages of the total number of ants that accepted baits were not statistically different among the eight fire ant baits by species. Among the baits and nontarget species evaluated in Florida, baits with solely (s)-methoprene or metaflumizone as the active ingredient had the lowest average percentages of bait acceptance (0.7 and 1.6, respectively). In California, tests were conducted with Pogonomyrmex californicus Buckley, large and small-sized Dorymyrmex bicolor Wheeler, Forelius pruinosus Roger, a species from the Pheidole crassicornis group, and a Myrmecocystus sp. Significant differences in bait acceptance for each species were not detected among five baits containing indoxacarb, pyriproxyfen, metaflumizone, (s)-methoprene, and/or hydramethylnon. Based on mean percentages of bait acceptance and observations of bait feeding, there was inconsistent bait acceptance by F. pruinosus and P. crassicornis group. Myrmecocystus sp. did not accept any fire ant bait. None of the fire ant bait products tested exhibited non-acceptance by all the nontarget ant species assayed. To conserve nontarget ants, fire ant bait selection will need to consider the nontarget ants present at individual sites and specific bait(s), that are least accepted by these ants.

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Torres-Contreras, Hugo, and Rodrigo A. Vásquez. "Spatial Heterogeneity and Nestmate Encounters Affect Locomotion and Foraging Success in the Ant Dorymyrmex goetschi." Ethology 113, no. 1 (2007). http://dx.doi.org/10.1111/j.1439-0310.2006.01302.x.

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Ants (Formicidae) in Mexico have usually been undersampled despite their ecological significance and their utility as environmental service providers and bioindicators. This study estimates the species richness and the narrow endemic species number of ants across Mexico. It also documents the presence of one species newly recorded in Mexico and 19 new state-based records of 14 species from central and north Mexico. No surveys have been performed in most of the localities where we report those records, suggesting the need for a higher sampling effort across the country. We present an ant species richness estimation and a narrow endemic ant species estimation in a grid of 0.5 degrees in Mexico. Stenamma schmitii is recorded for the first time from Mexico. Additionally, new state-based records of Azteca velox, Dorymyrmex insanus, Camponotus coruscus, Camponotus striatus, Formica propatula, Lasius latipes, Neivamyrmex melanocephalus, Neivamyrmex rugulosus, Syscia augustae, Atta texana, Cephalotes scutulatus, Crematogaster crinosa and Temnothorax andrei are recorded.

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Chanatásig-Vaca, Cristina Isabel, Esperanza Huerta Lwanga, Patricia Rojas Fernández, et al. "Efecto del uso de suelo en las hormigas (Formicidae: Hymenoptera) de Tikinmul, Campeche, México." ACTA ZOOLÓGICA MEXICANA (N.S.) 27, no. 2 (2011). http://dx.doi.org/10.21829/azm.2011.272764.

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Se comparó el efecto del uso de suelo sobre la mirmecofauna del ejido de Tikinmul, Campeche, México. El estudio se llevó a cabo en monocultivos de cedro y huertos caseros, durante la época seca y lluviosa. Para la colecta de especies se utilizó el método Tropical Soil Biology and Fertility (TSBF) modificado para sistemas agroforestales. Se encontraron un total de 37 morfoespecies, de las cuales nueve son exclusivas de cada uno de los dos sistemas, mientras 19 están presentes en ambos. Se observa una similitud (Sörensen) de 60.4% entre sistemas y 68% entre épocas. La subfamilia Myrmicinae con 8 géneros y 17 especies fue la mejor representada en el estudio. Solenopsis geminata y Dorymyrmex sp.fueron especies dominantes e indicadoras del monocultivo. La densidad de hormigas fue más alta en los monocultivos. No se encontró relación directa de la intensidad de manejo con la riqueza de especies. La cantidad de hojarasca se muestra como el factor determinante de abundancia de las hormigas. Los agroquímicos afectan de manera indirecta a sus poblaciones.

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Varela-Hernández, Fernando, Francisco Riquelme, and Roberto Guerrero. "A Miocene ant species of the genus Forelius Emery, 1888 (Hymenoptera: Formicidae: Dolichoderinae) from Mexico." Palaeontologia Electronica, 2023. http://dx.doi.org/10.26879/1294.

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The first fossil ant species of the New World genus Forelius (Formicidae: Dolichoderinae) is described. The type material is a Miocene amber inclusion from the Montecristo mine near Simojovel, Chiapas, southwestern Mexico. The new species is named Forelius chenpauch sp. nov. It differs from its congeners by having a unique combination of characters: antennal scapes reaching the posterior margin of the head; pronotum with six erect hairs; mesonotum with four erect hairs; propodeum with four erect hairs; front and dorsum of head, dorsum of pronotum, dorsum of mesonotum and propodeum covered with a fine striation. Forelius chenpauch sp. nov. has a rounded spiracle, which could be considered a plesiomorphic character closely related to the Forelius group from the north of the Amazon basin. Accordingly, the current divergence estimates of Forelius as a single genus from the Leptomyrmex + Forelius + Dorymyrmex clade (ca. 27 Ma) and the occurrence of Forelius chenpauch sp. nov. in the fossil record (ca. 23 Ma), may suggest that the rounded spiracle is a plesiomorphic state probably widespread since the Miocene from southern Mexico to northern South America.

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Adaikkan, Yogapriya, and Selvamuthukumaran Thirunavukkarasu. "Pollinator Activities in Momordica Cymbalaria Cucurbitaceae." Indian Journal of Entomology, February 22, 2023. http://dx.doi.org/10.55446/ije.2023.714.

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Momordica cymbalaria is an underutilized, non-cultivated cucurbit often seen as a weed. A study to record diversity of pollinators in M. cymbalaria was conducted during September to November, 2021 in Virudhunagar (Tamil Nadu). A total of 26 species (18 hymenopterans, 5 dipterans, 2 coleopterans and 1 hemipteran) were found as pollinators. Hymenopterans were the predominant (69.23%; 38.47% solitary bees and 15.38% each of social bees and ants). Dominating pollinators species was Lasioglossum sp. >Dorymyrmex sp. >Technomyrmex albipes>Trigona iridipennis > Halictus sp. >Apis florea. The mean population of Lassioglossum was maximum (6.24 bees/ m2/ 5 min) during 1000 to 1200 hr. Other solitary and social bees were also foraging maximum during 1000 to 1200 hr. Ants were found frequenting flowers from 0900 to 1800 hr. Species richness was maximum during 1000 to 1200 hr (17 species) and minimum during 1600 to 1800 hr (6 species). Species diversity and evenness not noticed throughout the hours of observation indicated unevenness. Thus, M. cymbalaria was mainly pollinated by solitary bees like Lassioglossum sp. and to a little extent by T. iridipennis.

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Salazar Reyes, Cecilia, and Leticia Ríos-Casanova. "Remoción de semillas por Dorymyrmex insanus (Hymenoptera: Formicidae) en una reserva ecológica en la Ciudad de México, México." Revista de Biología Tropical 70, no. 1 (2022). http://dx.doi.org/10.15517/rev.biol.trop..v70i1.48982.

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Introducción: La remoción de semillas por parte de las hormigas es una interacción que puede afectar en gran medida la dinámica y estructura de la vegetación. Este aspecto es bien conocido para las hormigas granívoras; sin embargo, hay poca información sobre el efecto de las omnívoras. Objetivo: Evaluar el impacto potencial de la hormiga omnívora Dorymyrmex insanus sobre la vegetación. Métodos: En la Reserva Pedregal, Ciudad de México, se identificaron los ítems en el área del basurero para diez colonias de hormigas, durante un año, cubriendo la época de lluvia y sequía. Para cada temporada calculamos la diversidad de semillas y analizamos la posible relación entre el tamaño de las semillas y su abundancia en los basureros, con modelos de regresión. También hicimos pruebas de germinación con semillas de Tagetes micrantha, comparando las encontradas en los basureros con las provenientes de las plantas. Resultados: D. insanus eliminó semillas de 19 especies de plantas, así como restos de plantas (hojas, ramitas, raíces) y restos de insectos. La diversidad de semillas fue mayor en la estación lluviosa pero la mayor abundancia lo fue en la estación seca. Al analizar la relación entre la longitud de las semillas y la abundancia en el área del basurero, encontramos que las hormigas preferían semillas de alrededor de 10 mm. También encontramos que germinaron más semillas de T. micrantha cuando fueron manipuladas previamente por hormigas. Conclusiones: La hormiga D. insanus participa activamente en la remoción de semillas de varias especies, favoreciendo la germinación, y la estacionalidad afecta la selectividad de recursos.

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Torres-Contreras, H., and R. A. V�squez. "A field experiment on the influence of load transportation and patch distance on the locomotion velocity of Dorymyrmex goetschi (Hymenoptera, Formicidae)." Insectes Sociaux 51, no. 3 (2004). http://dx.doi.org/10.1007/s00040-004-0737-1.

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Bahia Gouvêa, Clara, Mariana Damasio Ayres Lopes, Taila Silva de Carvalho, et al. "Avaliação do papel ecológico de formigas na dispersão de microrganismos ambientais." Revista Técnico-Científica O SABER 15, no. 1 (2024). https://doi.org/10.63753/osaber.a15n15.60.

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Formigas são insetos pertencentes à ordem Hymenoptera que exercem inúmeras atividades aos ecossistemas, seja pela decomposição de substratos orgânicos, pela ciclagem de nutrientes, ou mesmo pela atividade de aeração do solo. Além disso, podem atuar como dispersores de sementes e de patógenos de plantas e animais, influenciando significativamente no equilíbrio e na saúde das populações. Nesse contexto, o objetivo deste trabalho foi verificar o papel de formigas na dispersão de microrganismos ambientais. Para tanto, fungos isolados de formigas foram cultivados in vitro e analisados quanto ao aspecto macroscópico das colônias e quanto ao tipo de hifa. Posteriormente, o DNA extraído dos fungos foi utilizado como molde para amplificação de um fragmento da região ITS do rDNA, o qual foi submetido ao sequenciamento para identificação molecular dos microrganismos. Três espécies prováveis de fungos associados a formigas foram identificadas a partir de análises de bioinformática: Fusarium oxysporum, Aspergillus westerdijkiae e Cladosporium cladosporioides. Esses fungos desempenham papel na decomposição de matéria orgânica, podendo também atuar como fitopatógenos e entomopatógenos, além de produzirem micotoxinas de relevância médica. Paralelamente, procedeu-se ao reconhecimento das formigas potencialmente dispersoras de microrganismos coletadas neste trabalho, identificando-se cinco gêneros: Atta, Pheidole, Dorymyrmex, Monomorium e Camponotus. Os resultados do presente trabalho sugerem que formigas atuam ativamente como vetores mecânicos de dispersão de diversas espécies de fungos, os quais podem interferir positiva ou negativamente nos ecossistemas.

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Díaz, Marisa Andrea, Gabriela Inés Pirk, and Vanina Ruth Chalcoff. "Ants as Potential Pollinators in Agroecological Crops." Journal of Applied Entomology, May 28, 2025. https://doi.org/10.1111/jen.13427.

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ABSTRACTAnt pollination is a poorly studied interaction because ants have historically been considered mainly as nectar thieves. However, a few recent studies have reported effective pollination by ants both in wild plants and crops, although their potential as pollinators is still underexplored. In this study, we address the potential role of ants as pollinators of agroecological crops in NW Patagonia. We visited 25 agroecological orchards to identify crops whose flowers were visited by ants, the ant species involved, their behaviour during floral visits, and the number of legitimate visits. Additionally, we quantified ant pollen loads and the effect of ant body secretions on pollen germination. We recorded visits from Dorymyrmex tener, D. wolffhuegeli, Brachymyrmex patagonicus, Lasiophanes picinus and Solenopsis richteri to the flowers of 10 out of 47 crops. Ants were mainly legitimate visitors to small and open flowers, and primarily nectar thieves of larger flowers, with D. tener being the most frequent species. All ant species presented pollen loads from the visited crops, and contact with ant bodies reduced but did not completely suppress pollen germination in most crops. We found that ants visit the flowers of different crops in the region, and that their potential as pollinators depends both on the crop and the ant species involved, with higher chances of effective pollination by generalist and abundant ants, and crops with small and open flowers. This study contributes to understanding the role of ants in food production, which is especially relevant in the context of increasing environmental degradation and the pollination crisis.

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Ascunce, Marina S., Katherine Casey Carroll, Joe Aufmuth, et al. "Ant community composition in a citrus grove reveals eastern expansion in Florida of the South American big-headed ant (Hymenoptera: Formicidae)." Florida Entomologist 107, no. 1 (2024). http://dx.doi.org/10.1515/flaent-2024-0011.

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Abstract Florida has become a worldwide hotspot for introduced and invasive ants (Hymenoptera: Formicidae). Furthermore, studies have shown that non-native ants support other invasive insects in Florida, such as the Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), which is the vector of Candidatus Liberibacter asiaticus, the causal pathogen of citrus greening, the worst citrus disease in the world. The Asian citrus psyllid establishes beneficial interactions with invasive, introduced, and native ants. In this study, we described the ant diversity in a citrus grove in south Florida as a first step to assess ant-Asian citrus psyllid interactions for future studies. During the summer of 2018, 25 pitfall traps were set in a citrus grove. The red imported fire ant, Solenopsis invicta (Buren), was present in all the traps (100 %), and 19 traps (76 %) had Dorymyrmex bureni (Trager), the pyramid ant, which is native to the southeast United States. Two introduced ants, Cardiocondyla emeryi (Forel) and Brachymyrmex obscurior (Forel), were found in 15 (60 %) and 11 (44 %) traps, respectively. The South American big-headed ant, Pheidole obscurithorax (Naves), was found in 14 traps (56 %). This introduced ant has been found to co-exist with S. invicta, and to our knowledge, this is the first report of the species in this eastern part of peninsular Florida. Finally, Cardiocondyla venustula (Wheeler), an introduced ant from Africa, was found in one of the traps. Although, this ant is found in south Florida, it seems uncommon, and this is its first report in this county. Our study highlights the continued spread of introduced and invasive ants in Florida.

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