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Journal articles on the topic 'Baetis'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

WEBB, J. M., and P. J. Suter. "New combinations for the Australian species of Baetis (Ephemeroptera: Baetidae), with a new synonym." Zootaxa 2668, no. 1 (2010): 63. http://dx.doi.org/10.11646/zootaxa.2668.1.6.

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The Australian small minnow mayfly fauna remains poorly known with only 21 described species (Webb & Suter 2010). Four species were described in the genus Baetis Leach: B. baddamsae Harker, 1950; B. confluens Harker, 1950; B. frater Tillyard, 1936; and B. soror Ulmer, 1908. Baetis soror and B. frater were both placed in Offadens Lugo-Ortiz & McCafferty (Lugo-Ortiz & McCafferty 1998, Suter 2000), but the two remaining species are still included in Baetis. Revisionary work of the last few decades has clarified the concept of Baetis and related genera and showed that older concepts of

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2

KLUGE, NIKITA, PANDIARAJAN SRINIVASAN, T. SIVARUBAN, S. BARATHY, and RAJASEKARAN ISACK. "Contribution to the knowledge of the subgenus Tenuibaetis Kang & Yang 1994 (Ephemeroptera, Baetidae, Baetis s. l.)." Zootaxa 5277, no. 2 (2023): 201–58. http://dx.doi.org/10.11646/zootaxa.5277.2.1.

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The taxon Tenuibaetis Kang & Yang (in Kang, Chang & Yang) 1994 is accepted here as a subgenus of the genus Baetis Leach 1815, but not as a genus. In connection with this, new combinations are established: Baetis (Tenuibaetis) parvipterus (Fujitani et al. 2011) comb. n., Baetis (Tenuibaetis) fujitanii (Kaltenbach & Gattolliat 2019) comb. n., Baetis (Tenuibaetis) himani (Kubendran et al. in Kubendran et al. 2022) comb. n., Baetis (Tenuibaetis) kangi (Kubendran et al. in Kubendran et al. 2022) comb. n. and Baetis (Tenuibaetis) panhai (Suttinun et al. 2022) comb. n. Based on reared mat

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3

Lancaster, Jill. "Diel variations in the effect of spates on mayflies (Ephemeroptera: Baetis)." Canadian Journal of Zoology 70, no. 9 (1992): 1696–700. http://dx.doi.org/10.1139/z92-236.

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Field experiments were carried out to determine whether there are diel variations in the effect of spates on baetid mayflies. Short-term spates were created in experimental streamside channels by pumping filtered creek water into selected channels at various times of day, resulting in three- or four-fold increases in discharge. Drift samples were collected before, during, and after spates; benthic samples were collected before and after. Drift rates of Baetis from channels in spate were higher than controls at all times of day. Natural increases in drift were observed in all channels after sun

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4

Allen, Richard K., and Chad M. Murvosh. "NEW BAETIDAE FROM THE SOUTHWESTERN UNITED STATES AND NORTHERN MEXICO (EPHEMEROPTERA: INSECTA), WITH NOTES." Canadian Entomologist 119, no. 12 (1987): 1095–99. http://dx.doi.org/10.4039/ent1191095-12.

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AbstractCollections of Baetis Leach, Baetodes Needham and Murphy, and Dactylobaetis Traver and Edmunds from the southwestern United States and northern Mexico included new species and new distribution records. The nymphal stages of Baetis sonora n.sp. and Dactylobaetis sinaloa n.sp. are described and figured. Species of Baetis nymphs that were given informal epithets, even though they were described, keyed, and their taxonomic characters figured, are named, or tentatively associated with a described adult. Baetis sp. “A” Morihara and McCafferty is tentatively associated as the nymphal stage of

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5

Cowan, Cathy A., and Barbara L. Peckarsky. "Diel Feeding and Positioning Periodicity of a Grazing Mayfly in a Trout Stream and a Fishless Stream." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 2 (1994): 450–59. http://dx.doi.org/10.1139/f94-047.

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We studied the feeding and positioning periodicity on natural substrates of the overwintering and fast-growing summer generations of a grazing mayfly, Baetis bicaudatus, in a third-order trout stream and a fishless, first-order tributary in western Colorado. At 4-h intervals over 24-h, we recorded the number of Baetis on stone tops in flow-through enclosures in situ and in streamside circular flow-through chambers. We determined the feeding periodicity of Baetis using abundance of plant pigments as an index of gut fullness. Baetis were nocturnal in the trout stream; more animals were found on

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6

Soldán, Tomáš, and Roman J. Godunko. "Baetis zdenkae sp. nov., a new representative of the Baetis buceratus species-group (Ephemeroptera: Baetidae) from Rhodos (Greece) with notes to species-grouping of the subgenus Baetis Leach, 1815 s. str." Zootaxa 1972 (December 31, 2009): 1–19. https://doi.org/10.5281/zenodo.185067.

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Soldán, Tomáš, Godunko, Roman J. (2009): Baetis zdenkae sp. nov., a new representative of the Baetis buceratus species-group (Ephemeroptera: Baetidae) from Rhodos (Greece) with notes to species-grouping of the subgenus Baetis Leach, 1815 s. str. Zootaxa 1972: 1-19, DOI: 10.5281/zenodo.185067

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7

TIUNOVA, TATIANA M., and ALEXANDER A. SEMENCHENKO. "Baetis pentaphyllus sp. nov., a new species of mayfly (Ephemeroptera: Baetidae) from the Russian Far East." Zootaxa 4679, no. 2 (2019): 341–52. http://dx.doi.org/10.11646/zootaxa.4679.2.7.

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A new species, Baetis pentaphyllus sp. nov., is described on the basis of larvae from the Far East of Russia (type locality Bolshoi Garmakan River). Larvae of Baetis pentaphyllus sp. nov. may be distinguished from other Baetis species by the presence of only five pairs of tergalii on segments III–VII. The mitochondrial COI sequence obtained from the described species was compared with the data present in GeneBank and BOLD. The DNA barcodes allowed discrimination of B. pentaphyllus sp. nov. from other species of Baetis with available sequence data. The average interspecific K2P distances were 1

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8

SROKA, PAVEL, ROMAN J. GODUNKO, EUGENIA A. NOVIKOVA, and NIKITA J. KLUGE. "Contribution to the knowledge of the subgenus Rhodobaetis Jacob, 2003 (Ephemeroptera: Baetidae: Baetis) from Central Asia. Part 1." Zootaxa 3311, no. 1 (2012): 42. http://dx.doi.org/10.11646/zootaxa.3311.1.2.

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A new species, Baetis (Rhodobaetis) taldybulaki sp. nov., is described on the basis of larvae and reared adults from Kyr-gyzstan. The differential diagnosis of this species is provided with regard to other representatives of the subgenus Rhodo-baetis Jacob, 2003. The lectotype of Baetis (Rhodobaetis) issyksuvensis Brodsky, 1930 (male imago) is designated,described and illustrated in order to fix the status of this species and clearly differentiate it from B. taldybulaki sp. nov.The holotype of Baetis (Rhodobaetis) heptapotamicus Brodsky, 1930 is redescribed and a new synonymy is established: B

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9

TIUNOVA, TATIANA M., ALEXANDER A. SEMENCHENKO, and XIAOLI TONG. "Baetis majus sp. nov., new species of mayfly (Ephemeroptera: Baetidae) from Far East of Russia." Zootaxa 4965, no. 3 (2021): 541–57. http://dx.doi.org/10.11646/zootaxa.4965.3.8.

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A new species, Baetis majus Tiunova sp. nov., is described and illustrated based on larvae and reared adults discovered in the Russian Far East. The differential identification of this species was determined by the characteristics of other representatives of the genus Baetis Leach, including subgenera Baetis Leach and Tenuibaetis Kang & Yang from Eastern and Western Palaearctic, Nearctic and Oriental regions. In addition to morphological studies, DNA barcoding of the described species with average intraspecific K2P distances to nearest neighbours is documented. We reconstructed the phyloge

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10

SOLDÁN, TOMÁŠ, and ROMAN J. GODUNKO. "Baetis zdenkae sp. nov., a new representative of the Baetis buceratus species-group (Ephemeroptera: Baetidae) from Rhodos (Greece) with notes to species-grouping of the subgenus Baetis Leach, 1815 s. str." Zootaxa 1972, no. 1 (2009): 1–19. http://dx.doi.org/10.11646/zootaxa.1972.1.1.

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The male and female imago (subimago of both sexes unknown), and larva of a new species belonging to the Baetis buceratus species-group, namely Baetis (Baetis) zdenkae sp. nov. from Rhodos Island are described and illustrated in detail. Substantial diagnostic characters of males and larvae of the whole B. buceratus species-group are summarized and its position relative to other species groups is discussed. Critical characters distinguishing B. zdenkae sp. nov. from all other representatives of the B. buceratus species-group are emphasized and a discussion of 22 characters of the remaining 6 Eur

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11

SIVARUBAN, T., PANDIARAJAN SRINIVASAN, S. BARATHY, and RAJASEKARAN ISACK. "Baetis venkataramani sp. nov., a new species of the genus Baetis Leach, 1815 (Ephemeroptera: Baetidae) from Tamil Nadu, India." Zoosymposia 24 (July 31, 2023): 149–54. http://dx.doi.org/10.11646/zoosymposia.24.1.16.

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As part of the ongoing research in the southern Western Ghats, a new species of Baetis Leach is described based on the nymphs collected in the Tamil Nadu, Southern India. Baetis venkataramani sp. nov. does not belong to any of the Baetis species groups proposed so far. The most closely related species to B. venkataramani sp. nov. is B. collinus Müller-Liebenau & Hubbard. However, the new species is distinguished from B. collinus by the presence of tergalius I, posterio-tergal spines absent on the tergites I–VIII and present on the tergum IX and by the size of the labial palp segment III. T

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12

Godunko, Roman J., Tomáš Soldán, and Arnold H. Staniczek. "Baetis (Baetis) cypronyx sp. n., a new species of the Baetis alpinus species-group (Insecta, Ephemeroptera, Baetidae) from Cyprus, with annotated checklist of Baetidae in the Mediterranean islands." ZooKeys 644 (January 10, 2017): 1–32. https://doi.org/10.3897/zookeys.644.10413.

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A detailed description of the larvae of Baetis (Baetis) cypronyx sp. n., a representative of the Baetis alpinus species-group within the mayfly family Baetidae, is provided, including a differential diagnosis with regard to closely related species of the group, especially Baetis melanonyx (Pictet, 1843) and B. baroukianus Thomas & Dia, 1984. The new species is mainly distinguished by mouthparts (i.e. the shape and setation of labrum, maxillary and labial palps, details of paraglossae and mandibular incisors), setation of legs and abdominal terga, and length of paracercus. All available dat

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13

Dambri, Besma M., Roman J. Godunko, and Nadhira Benhadji. "Baetidae (Insecta: Ephemeroptera) of Aurès Mountains (Algeria): A New Species of the Baetis alpinus Species Group, with Notes on Baetis Laech, 1815 Biogeography within Maghreb." Insects 14, no. 11 (2023): 899. http://dx.doi.org/10.3390/insects14110899.

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A new species, Baetis (Baetis) dihyaesp. nov., belonging to the Baetis alpinus species group, is described and illustrated based on larval material collected in the Aurès Mountains (northeastern Algeria) in 2020–2021. This new species is closely related to three European species, e.g., Baetis (B.) alpinus (Pictet, 1843); B. (B.) nubecularis Eaton, 1898; and B. (B.) pasquetorum Righetti & Thomas, 2002 by the combination of the following characteristics: (i) more than one short, stout bristle at the tip of segment II of the maxillary palp and (ii) a well-developed paracercus. However, the ne

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14

MU, PENGXU, and XIAOLEI HUANG. "Two new species of Baetis s. l. (Ephemeroptera, Baetidae) from Yintiaoling Nature Reserve of Chongqing, China." Zootaxa 5652, no. 1 (2025): 169–82. https://doi.org/10.11646/zootaxa.5652.1.18.

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Two new species of Baetis s. l. are described and illustrated based on nymphal materials. Baetis chongqingensis sp. nov. is characterized by the elongated labrum, the presence of stout setae on scape, the absence of apical scale on segment II of maxillary palp, the well-developed projection on segment II of labial palp, and the absence of chagrin and spatulate setae on abdominal terga. Baetis (Rhodobaetis) qianlei sp. nov. can be differentiated from the other species of subgenus Rhodobaetis by the number of spatulate setae on the scape and pedicel, the shape of labial palp and tergalii, and th

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15

Erdenee, Bolortsetseg, Alain Maasri, Jon K. Gelhaus, and Badamdorj Bayartogtokh. "A contribution to mayfly studies of Western Mongolia (Insecta, Ephemeroptera)." ZooKeys 638 (December 8, 2016): 105–23. https://doi.org/10.3897/zookeys.638.10198.

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Streams in the Mongolian Altai Mountains are mostly fed from glaciers and are extreme conditions for mayflies because of high elevation, low temperatures and low annual precipitation. Previous information about mayflies of Western Mongolia is scarce, but with this study a total of 38 species belonging to 26 genera and subgenera and 8 families of mayflies has been recorded in the Mongolian Altai region. Study material was entirely imagos and collected from 78 sites during expeditions led by the Mongolian Aquatic Insect Survey in 2008, 2009 and 2010. Raptobaetopus tenellus, Caenis luctuosa and C

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16

Casey, Richard J. "Diel periodicity in density of Ephemeroptera nymphs on stream substrata and the relationship with drift and selected abiotic factors." Canadian Journal of Zoology 65, no. 12 (1987): 2945–52. http://dx.doi.org/10.1139/z87-447.

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The diel periodicity in density of Ephemeroptera nymphs on an undisturbed stream bottom was documented by direct observation. The study was conducted in a second-order Rocky Mountain foothill stream in Alberta. Observations were made for 24-h periods, twice during a new moon and twice during a full moon; the times of the dark and light periods were noted. Nocturnal observations were made using a red light. The abundance of drifting nymphs, incident light, percent cloud cover in the sky, and water temperature were recorded to determine if they were related to the observed diel periodicity on to

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17

Fuller, Randall L., and Peter A. DeStaffan. "A laboratory study of the vulnerability of prey to predation by three aquatic insects." Canadian Journal of Zoology 66, no. 4 (1988): 875–78. http://dx.doi.org/10.1139/z88-129.

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The vulnerability of three different prey (Baetis spp., Ephemerella spp., and Simulium spp.) to predation by Nigronia serricornis (Megaloptera) and Paragnetina media and Agnetina capitata (both Plecoptera) was studied in recirculating Plexiglas chambers. When each prey was tested individually, Simulium was least vulnerable to predation by A. capitata and equally vulnerable with Ephemerella to P. media and N. serricornis. Baetis was the most vulnerable to predacious stoneflies while Baetis and Ephemerella were equally vulnerable to N. serricornis. When prey were tested in mixed assemblages, sim

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18

Pokharel, Kishor K. "Biodiversity in Riffles and Pools of the Mardi and the Vijaypur Streams, Pokhara, Nepal: Benthic Macroinvertebrate Communities." Tribhuvan University Journal 28, no. 1-2 (2013): 141–52. http://dx.doi.org/10.3126/tuj.v28i1-2.26235.

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Macro invertebrate communities from September 2003 to August 2004were studied in riffles and pools of the Mardi and the Vijayapur streams, Pokhara, Nepal. A total of 47 genera (32 from the riffles and 34 from the pools) belonging to 38 families and 12 orders were recorded. The generic richness was lower (30 genera) in the Vijaypur stream than in the Mardi stream (38 genera). Ephemeropteran, dipterans, and trichopteran were found predominant orders comprising 11, 8 and 8 genera respectively. Heptagenids, baetids and leptophlebids; chironomids, ceratopagonids and tip lids and hydropsychids, psyc

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19

TIUNOVA, TATIANA M., and ALEXANDER A. SEMENCHENKO. "Baetis (Rhodobaetis) molecularis sp. nov., a new mayfly species (Ephemeroptera: Baetidae) from the Russian Far East ." Zootaxa 4820, no. 2 (2020): 287–304. http://dx.doi.org/10.11646/zootaxa.4820.2.4.

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A new species Baetis (Rhodobaetis) molecularis sp. nov. is described and illustrated based on larvae and reared adults from the Far East of Russia. The differential diagnosis of this species is provided with regard to other representatives of the subgenus Rhodobaetis Jacob, 2003 from East Palaearctic and Nearctic Regions. A dataset including novel and publicly available COI mtDNA sequences of 16 species of Rhodobaetis has been assembled to provide a reference dataset for DNA barcoding. The comparison between Baetis (Rhodobaetis) molecularis sp. nov. and other species produced K2P genetic dista

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20

Alba-Tercedor, Javier. "A New Synonymy in Baetis: Baetis nexus Navás, 1918 is the Valid Name of Baetis pentaphlebodes Ujhelyi, 1966 (Ephemeroptera: Baetidae)." Aquatic Insects 24, no. 1 (2002): 77–79. http://dx.doi.org/10.1076/aqin.24.1.77.4910.

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21

Mustafa Khudhur, Shelan, and Yahya Ahmed Shekha. "Description of Some Aquatic Insect Genera in Greater Zab River Branches, North of Iraq." Al-Nahrain Journal of Science 24, no. 4 (2021): 68–78. http://dx.doi.org/10.22401/anjs.24.4.10.

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Aquatic insects samples were collected from 6 sites along the Greater Zab River in the northern Iraq from Duhok and Erbil governorates over 12 months during September 2016 to August2017, which belong to seven orders (Ephemeroptera, Plecoptera, Trichoptera, Odonatan, Diptera, Coleoptera, and Megaloptera). Clustering mitochondrial DNA cytochrome c oxidase and 16S rDNA genes, morphological keys, and matches in the Barcode of Life Database, we identified 24 species return to 7 orders and 12 families, as indicated in the results. The reported species were: Ephemeroptera 5 members of the family Hept

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22

Savolainen, Eino. "Baetis jaervii sp. n. (Ephemeroptera: Baetidae) from northern Europe." Entomologica Fennica 20, no. 3 (2019): 182–85. http://dx.doi.org/10.33338/ef.84475.

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Baetis jaervii sp. n. is described and illustrated. The history and relationships of this taxon to related species are elucidated on the basis of literature and determinations of genetic distance and mtDNA barcodes. B. jaervii is the only representative of the B. vernus group found in northern Europe, the nymphs of which live in lakes. The population from northern Finland earlier assigned to Baetis tracheatus should be transferred to represent B. jaervii.

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23

El Yaagoubi, Sara, Laurent Vuataz, Majida El Alami, and Jean-Luc Gattolliat. "A new species of the Baetis fuscatus group (Ephemeroptera, Baetidae) from Morocco." ZooKeys 1180 (September 15, 2023): 27–50. http://dx.doi.org/10.3897/zookeys.1180.109298.

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Baetis rifensissp. nov. is the first representative of the Baetis fuscatus group to be described from the Maghreb. It was collected from streams in the Rif region of northern Morocco. All species of the B. fuscatus group are morphologically very similar, with slight differences in colour. Thus, in addition to morphological description, species delimitation based on genetic evidence was carried out. The new species was compared with other members of the B. fuscatus group from the Palaearctic region.

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24

El, Yaagoubi Sara, Laurent Vuataz, Alami Majida El, and Jean-Luc Gattolliat. "A new species of the Baetis fuscatus group (Ephemeroptera, Baetidae) from Morocco." ZooKeys 1180 (September 15, 2023): 27–50. https://doi.org/10.3897/zookeys.1180.109298.

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Baetis rifensis sp. nov. is the first representative of the Baetis fuscatus group to be described from the Maghreb. It was collected from streams in the Rif region of northern Morocco. All species of the B. fuscatus group are morphologically very similar, with slight differences in colour. Thus, in addition to morphological description, species delimitation based on genetic evidence was carried out. The new species was compared with other members of the B. fuscatus group from the Palaearctic region.

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25

Savolainen, Eino, Marcus Drotz, Per-Ola Hoffsten, and Anssi Saura. "The Baetis vernus group (Ephemeroptera: Baetidae) of northernmost Europe: an evidently diverse but poorly understood group of mayflies." Entomologica Fennica 18, no. 3 (2007): 160–67. http://dx.doi.org/10.33338/ef.84393.

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The Baetis vernus group is known to be a taxonomically difficult group of mayflies. Morphological characters such as themandibles or gills of nymphs overlap widely. We report here that enzyme electromorph frequencies also fail to show reproductive isolation in many cases. Baetis macani has been divided in the literature into two forms, a lentic one with broader gills living in stagnant waters, while the lotic one with narrower gills lives in flowing water. We show that the two evidently represent reproductively isolated taxa, B. macani Kimmins = B. bundyae auct. nec, while the one with broader

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26

CAN, Fethi, and Nesil ERTORUN. "Pülümür ve Ovacık (Tunceli, Türkiye) İlçeleri Ephemeroptera Limnofaunası." Commagene Journal of Biology 7, no. 2 (2023): 113–17. http://dx.doi.org/10.31594/commagene.1378014.

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Tunceli ili Pülümür ve Ovacık ilçelerindeki Ephemeroptera (Insecta) faunasını tespit etmek amacıyla Mart 2019-Temmuz 2020 tarihleri arasında 11 istasyondan 2142 nimf örneği toplanarak incelenmiş ve 5 familyaya ait 10 cinse bağlı 22 takson tespit edilmiştir. Çalışma sonucunda tespit edilen Baetis (Baetis) vernus, B. (B.) lutheri, B. (B.) pavidus, B. (B.) melanonxy, B. (Rhodobaetis) milani, B. (R.) vadimi, Alainites muticus, Epeorus (Ironopsis) alpicola, E. (Caucasiron) znojkoi, Heptagenia (Dacnogenia) coerulans, Rhithrogena germanica, R. semicolorata, R. zelinkai, Ecdyonurus (Helvetoraeticus) p

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27

Markovic, Z., and Ivana Zivic. "Fauna of Ephemeroptera in the running waters of west Serbia." Archives of Biological Sciences 54, no. 3-4 (2002): 117–24. http://dx.doi.org/10.2298/abs0204117m.

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During the period 1988 - 1996 the Ephemeroptera diversity in West Serbia was studied. These investigations included 124 springs, considerable number of spring regions, as well as rivers: the Susica, Djetinja, Skrapez Pocibrava, Banja, Gradac, Jablanica, Obnica and Kolubara. Total of 45 taxa belonging to 8 families were identified. At the majority of sampling locations: Baetis rhodani, Baetis sp., Ecdyonurus sp., Ephemera danica Ephemerella ignita, Caenis moesta, Habroleptoides modesta and Ilhitrogena semicolorata were present. The smallest Ephemeroptera diversity in the studied waters was reco

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28

Li, Jing, Mengyao Li, Muhe Deng, Xinhe Qiang, and Changfa Zhou. "Twenty-One Mayfly Gynandromorphic Cases from China." Diversity 17, no. 8 (2025): 509. https://doi.org/10.3390/d17080509.

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Gynandromorphism of mayfly has unique biological and scientific value. However, most cases of previous studies on this phenomenon were from Europe and America, with only two cases reported from China. In this study, we examined the mayfly collections in our laboratory and obtained 21 intersex specimens belonging to three families (Baetidae, Leptophlebiidae, and Siphlonuridae) and seven species (Baetis rutilocylindratus, three unnamed Baetis species, Neoleptophlebia sp., Choroterpes facialis, and Siphlonurus lacustris), which greatly enrich the diversity of mayfly gynanders of China. Biogeograp

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29

Giberson, Donna J., Steven K. Burian, and Michael Shouldice. "Life history of the northern mayfly Baetis bundyae in Rankin Inlet, Nunavut, Canada, with updates to the list of mayflies of Nunavut." Canadian Entomologist 139, no. 5 (2007): 628–42. http://dx.doi.org/10.4039/n06-089.

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AbstractMayflies (Ephemeroptera) were collected from 35 sites (streams and tundra ponds) across southern Nunavut in 2002–2005. Nine mayfly species were previously reported for Nunavut: Acentrella feropagus Alba-Tercedor and McCafferty, Acerpenna pygmaea (Hagen), Baetis bundyae Lehmkuhl, B. flavistriga McDunnough, B. foemina McDunnough, Diphetor hageni (Eaton) (Baetidae), Ephemerella aurivillii (Bengtsson) (Ephemerellidae), Leptophlebia nebulosa (Walker) (Leptophlebiidae), and Metretopus borealis (Eaton) (Metrotopidae). We add 7 species to this list, bringing the total to 16: Ameletus inopinatu

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Hall, Ronald J. "Responses of Benthic Communities to Episodic Acid Disturbances in a Lake Outflow Stream at the Experimental Lakes Area, Ontario." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 8 (1994): 1877–92. http://dx.doi.org/10.1139/f94-188.

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Effects of episodic experimental pH depressions on water chemistry and structure of benthic communities were investigated in northwestern Ontario, a location with low H+ deposition. Acidity levels were increased from background values of pH 6.9 to 5.0, 4.5, and 4.0 to simulate snowmelt and rainstorm events observed in south-central Ontario. Conductivity and concentrations of Ca and Mn increased significantly for all three pH disturbances. Fe and dissolved organic C remained unchanged at pH 4.5 and 4.0 but Fe increased at pH 5.0. Total and inorganic monomeric Al increased at pH 4.5 and 4.0 rela

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Havird, Justin C., Alisha A. Shah, and Adam J. Chicco. "Powerhouses in the cold: mitochondrial function during thermal acclimation in montane mayflies." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1790 (2019): 20190181. http://dx.doi.org/10.1098/rstb.2019.0181.

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Mitochondria provide the vast majority of cellular energy available to eukaryotes. Therefore, adjustments in mitochondrial function through genetic changes in mitochondrial or nuclear-encoded genes might underlie environmental adaptation. Environmentally induced plasticity in mitochondrial function is also common, especially in response to thermal acclimation in aquatic systems. Here, we examined mitochondrial function in mayfly larvae ( Baetis and Drunella spp.) from high and low elevation mountain streams during thermal acclimation to ecologically relevant temperatures. A multi-substrate tit

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Rader, Russell B., and James V. Ward. "Diel Migration and Microhabitat Distribution of a Benthic Stream Assemblage." Canadian Journal of Fisheries and Aquatic Sciences 47, no. 4 (1990): 711–18. http://dx.doi.org/10.1139/f90-080.

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Macroinvertebrate microspatial distributions were determined on nonglazed brick substrates at three sites on the upper Colorado River. Site 1 was located above a reservoir, whereas Sites 2 and 3 were located 0.4 and 4.0 km, respectively, downstream from a deep-release dam. Replicate samples from each substrate surface (top, sides, front, back, and bottom) and from the interstices below brick substrates were collected during the day (ca 14:00–16:00) and at night (ca 21:00–23.00) in the summer and autumn of 1982. Although most macroinvertebrates occurred on "bottom" surfaces, "top," and "side" s

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Macadam, Craig R., Richard P. Chadd, Alex Pickwell, and Jason Doe. "A new British mayfly: Baetis atlanticus (Soldán & Godunko, 2006) (Ephemeroptera: Baetidae)." Entomologist's Monthly Magazine 154, no. 4 (2018): 263–65. http://dx.doi.org/10.31184/m00138908.1544.3933.

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Benhadji, Nadhira, Michel Sartori, Hassaine Karima Abdellaoui, and Jean-Luc Gattolliat. "Reports of Baetidae (Ephemeroptera) species from Tafna Basin, Algeria and biogeographic affinities revealed by DNA barcoding." Biodiversity Data Journal 8 (August 14, 2020): e55596. https://doi.org/10.3897/BDJ.8.e55596.

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The Mediterranean basin is known to be the cradle of many endemic species. Within mayflies (Insecta, Ephemeroptera), North African species belonging to the family Baetidae remain poorly known and, traditionally, affinities to European fauna were proposed. Recent studies, based on molecular reconstructions, showed closer relationships to Mediterranean islands fauna.Baetidae were sampled from North-West Algerian wadis (Tafna basin) and involved in COI barcoding reconstructions. Seven species were identified. The subgenus Rhodobaetis is represented by <i>Baetis atlanticus</i> known previously fro

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Tiunova, Tatiana M., and Alexander A. Semenchenko. "Baetis (Rhodobaetis) molecularis sp. nov., a new mayfly species (Ephemeroptera Baetidae) from the Russian Far East." Zootaxa 4820, no. 2 (2020): 287–304. https://doi.org/10.11646/zootaxa.4820.2.4.

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Tiunova, Tatiana M., Semenchenko, Alexander A. (2020): Baetis (Rhodobaetis) molecularis sp. nov., a new mayfly species (Ephemeroptera Baetidae) from the Russian Far East. Zootaxa 4820 (2): 287-304, DOI: 10.11646/zootaxa.4820.2.4

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Tiunova, Tatiana M., and Alexander A. Semenchenko. "Baetis pentaphyllus sp. nov., a new species of mayfly (Ephemeroptera: Baetidae) from the Russian Far East." Zootaxa 4679, no. 2 (2019): 341–52. https://doi.org/10.11646/zootaxa.4679.2.7.

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Tiunova, Tatiana M., Semenchenko, Alexander A. (2019): Baetis pentaphyllus sp. nov., a new species of mayfly (Ephemeroptera: Baetidae) from the Russian Far East. Zootaxa 4679 (2): 341-352, DOI: 10.11646/zootaxa.4679.2.7

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Staniczek, Arnold H., Roman J. Godunko, and Tomáš Soldán. "Baetis (Baetis) cypronyx sp. n., a new species of the Baetis alpinus species-group (Insecta, Ephemeroptera, Baetidae) from Cyprus, with annotated checklist of Baetidae in the Mediterranean islands." ZooKeys 644 (January 10, 2017): 1–32. http://dx.doi.org/10.3897/zookeys.644.10413.

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Tiunova, Tatiana M., Alexander A. Semenchenko, and Xiaoli Tong. "Baetis majus sp. nov., new species of mayfly (Ephemeroptera: Baetidae) from Far East of Russia." Zootaxa 4965, no. 3 (2021): 541–57. https://doi.org/10.11646/zootaxa.4965.3.8.

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Tiunova, Tatiana M., Semenchenko, Alexander A., Tong, Xiaoli (2021): Baetis majus sp. nov., new species of mayfly (Ephemeroptera: Baetidae) from Far East of Russia. Zootaxa 4965 (3): 541-557, DOI: 10.11646/zootaxa.4965.3.8

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Webb, J.M., Luke M. Jacobus, and S.P. Sullivan. "The state of systematics of North American Baetis Leach, 1815 (Ephemeroptera: Baetidae), with recommendations for identification of larvae." Zootaxa 4394, no. 1 (2018): 105–27. https://doi.org/10.11646/zootaxa.4394.1.6.

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Webb, J.M., Jacobus, Luke M., Sullivan, S.P. (2018): The state of systematics of North American Baetis Leach, 1815 (Ephemeroptera: Baetidae), with recommendations for identification of larvae. Zootaxa 4394 (1): 105-127, DOI: 10.11646/zootaxa.4394.1.6

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Webb, J.M., and P.J. Suter. "New combinations for the Australian species of Baetis (Ephemeroptera: Baetidae), with a new synonym." Zootaxa 2668, no. 1 (2010): 63–65. https://doi.org/10.11646/zootaxa.2668.1.6.

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Webb, J.M., Suter, P.J. (2010): New combinations for the Australian species of Baetis (Ephemeroptera: Baetidae), with a new synonym. Zootaxa 2668 (1): 63-65, DOI: 10.11646/zootaxa.2668.1.6, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2668.1.6

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Benlasri, Mokhtar, Nils Kaczmarek, Majida El Alami, Mohamed Ghamizi, and Elisabeth Berger. "Inventory and pattern of distribution of mayflies (Insecta, Ephemeroptera) in the Draa river basin, southern Morocco." Alpine Entomology 7 (March 13, 2023): 13–20. http://dx.doi.org/10.3897/alpento.7.96436.

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The Draa river basin is located south of the High Atlas Mountain rangee in Morocco. The Ephemeroptera (mayflies) fauna of its three sub-basins: the High, Middle, and Lower Draa are poorly known. This study contributes to the knowledge of Ephemeroptera and its distribution in relation to environmental parameters in this area. The larvae of Ephemeropteran species were collected during six field campaigns in 17 sites using a Surber sampler. A total of thirteen species belonging to ten genera and five families were identified. among which seven taxa were recorded for the first time in the southern

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Benlasri, Mokhtar, Nils Kaczmarek, Alami Majida El, Mohamed Ghamizi, and Elisabeth Berger. "Inventory and pattern of distribution of mayflies (Insecta, Ephemeroptera) in the Draa river basin, southern Morocco." Alpine Entomology 7 (March 13, 2023): 13–20. https://doi.org/10.3897/alpento.7.96436.

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The Draa river basin is located south of the High Atlas Mountain rangee in Morocco. The Ephemeroptera (mayflies) fauna of its three sub-basins: the High, Middle, and Lower Draa are poorly known. This study contributes to the knowledge of Ephemeroptera and its distribution in relation to environmental parameters in this area. The larvae of Ephemeropteran species were collected during six field campaigns in 17 sites using a Surber sampler. A total of thirteen species belonging to ten genera and five families were identified. among which seven taxa were recorded for the first time in the southern

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Yanai, Zohar, Jean-Luc Gattolliat, and Netta Dorchin. "Taxonomy of Baetis Leach in Israel (Ephemeroptera, Baetidae)." ZooKeys 794 (November 1, 2018): 45–84. https://doi.org/10.3897/zookeys.794.28214.

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The taxonomy and systematics of the genus Baetis Leach (Ephemeroptera: Baetidae) in Israel is clarified for the first time as part of an ongoing comprehensive survey of the Israeli mayfly fauna. Six clearly defined species are currently recognized in Israel, four of which are described here as new to science. The validity of all species is supported by a molecular analysis of the mitochondrial COI gene. A key for the identification of the Israeli species based on the nymphal stage is provided, as well as data on their distribution patterns and ecology. The local fauna represents four Palearcti

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Encalada, Andrea C., and Barbara L. Peckarsky. "Selective oviposition of the mayfly Baetis bicaudatus." Oecologia 148, no. 3 (2006): 526–37. http://dx.doi.org/10.1007/s00442-006-0376-5.

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Sroka, Pavel, Roman J. Godunko, Eugenia A. Novikova, and Nikita J. Kluge. "Contribution to the knowledge of the subgenus Rhodobaetis Jacob, 2003 (Ephemeroptera: Baetidae: Baetis) from Central Asia. Part 1." Zootaxa 3311 (December 31, 2012): 42–60. https://doi.org/10.5281/zenodo.210699.

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Sroka, Pavel, Godunko, Roman J., Novikova, Eugenia A., Kluge, Nikita J. (2012): Contribution to the knowledge of the subgenus Rhodobaetis Jacob, 2003 (Ephemeroptera: Baetidae: Baetis) from Central Asia. Part 1. Zootaxa 3311: 42-60, DOI: 10.5281/zenodo.210699

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Sroka, Pavel, Alexander V. Martynov, and Roman J. Godunko. "Morphological and genetic variability of Baetis (Rhodobaetis) braaschi Zimmermann, 1980 (Ephemeroptera: Baetidae)." Zootaxa 3323, no. 1 (2012): 27–49. https://doi.org/10.11646/zootaxa.3323.1.2.

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Sroka, Pavel, Martynov, Alexander V., Godunko, Roman J. (2012): Morphological and genetic variability of Baetis (Rhodobaetis) braaschi Zimmermann, 1980 (Ephemeroptera: Baetidae). Zootaxa 3323 (1): 27-49, DOI: 10.11646/zootaxa.3323.1.2, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.3323.1.2

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Macko, Patrik, Tomáš Derka, Jr Fedor Čiampor, and Zuzana Čiamporová-Zaťovičová. "The first step towards a DNA barcode reference database for mayflies (Ephemeroptera) of Slovakia." ARPHA Conference Abstracts 4 (March 4, 2021): e64798. https://doi.org/10.3897/aca.4.e64798.

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Mayflies (Ephemeroptera) represent a small but diverse order of amphibiotic insects, whose larvae contribute to several essential processes in freshwater habitats, such as bioturbation and bioirrigation, decomposition, nutrient cycling, and also serve as a primary source of nutrients for numerous organisms. Due to their cosmopolitan distribution and high-quality water requirements, they are also important indicators of ecosystem health and an integral part of biomonitoring protocols. Although the Slovak mayfly fauna is well researched, studies on genetic diversity, including DNA barcoding, are

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Ramírez R., John Jairo, and Gabriel Roldán P. "Contribución al conocimiento limnológico y de los macroinvertebrados acuáticos de algunos ríos de la región del Urabá antioqueño." Actualidades Biológicas 18, no. 66 (2017): 113–21. http://dx.doi.org/10.17533/udea.acbi.329869.

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Entre 1980 y 1981 se llevó a cabo en la región del Urabá antioqueño un estudio limnológico de los ríos Turbo, Apartadó y Chigorodó. Como resultado se encontró que los macroinvertebrados más frecuentes eran Baetis, Leptohyphes, Tricorythodes, Ambrisus, Phyllogomphoides y Chironomus.

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Godunko, Roman J., Dmitry M. Palatov, and Alexander V. Martynov. "Mayflies of the Caucasus Mountains. III. A new representative of the subgenus Rhodobaetis Jacob, 2003 (Baetidae: Baetis) from the South-Western Caucasus." Zootaxa 3948, no. 2 (2015): 182–202. https://doi.org/10.11646/zootaxa.3948.2.2.

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Godunko, Roman J., Palatov, Dmitry M., Martynov, Alexander V. (2015): Mayflies of the Caucasus Mountains. III. A new representative of the subgenus Rhodobaetis Jacob, 2003 (Baetidae: Baetis) from the South-Western Caucasus. Zootaxa 3948 (2): 182-202, DOI: 10.11646/zootaxa.3948.2.2

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Dudgeon, David, and Christina Y. M. Wat. "Life cycle and diet of Zygonyx iris insignis (Insecta: Odonata: Anisoptera) in Hong Kong running waters." Journal of Tropical Ecology 2, no. 1 (1986): 73–85. http://dx.doi.org/10.1017/s0266467400000614.

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ABSTRACTZygonix iris is widespread in tropical Asia, and larvae are sprawlers/clingers on rock surfaces in fast-flowing streams and rivers. In the Lam Tsuen River, Hong Kong, this species is univoltine; emergence occurs prior to the summer monsoon and larval recruitment during the wet season. Studies on larval dietary composition in four habitats indicated that Z. iris is a generalist predator, consuming epibenthic prey taxa in proportion to their abundance in the environment. Larval Chironomidae (Diptera) and Baetis (Ephemeroptera) were the commonest food items at all sites and there was litt

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