Despite its wide, almost worldwide distribution, the mayfly genus Cloeon Leach, 1815 (Ephemeroptera: Baetidae) is restricted in the Western hemisphere to North America, where a single species is reported. In the Neotropics, except for some species wrongly attributed to the genus in the past, there are no records of Cloeon. Recently, however, specimens of true Cloeon were collected along the coa...

A new species of Baetidae, Alainites siamensis sp. nov. , is described from Thailand. This closely related to lingulatus Tong & Dudgeon, 2000, laetificus (Kang Yang, 1994) and yixiani (Gui Lu, 1999). Species delimitation based on morphological molecular (mitochondrial COI sequences) evidence provided. The discovery this confirms the wide distribution Waltz McCafferty, 1994 in Southeast Asia.

The present work, based on material from northern, central-western, and northeastern Brazil, contributes to the knowledge of the two-winged Cloeodes Traver (Ephemeroptera: Baetidae) in South America. Two new species, C. maracatu, sp. nov. and C. spaceki, sp. nov., are described, the former based on nymphs and reared adults and the latter only on nymphs; the male and female imago of C. auwe and ...

A new species of Baetidae, Gratiabaibungensis sp. n., is described and illustrated based on nymphal stage collected from the southeastern Tibet (Xizang) and the genus is reported for the first time from China. This new species can be readily differentiated from its congeners by the absence of a protuberance on the posterior margin of the abdominal tergum X, glabrate simple submarginal setae on ...

The purpose of this study was to analyze changes in the assemblage benthic macroinvertebrates, as a response anthropogenic environmental alterations river Extra-Andean Patagonia. Four sampling surveys were carried out between March 2017 and 2019, contrasting seasons on middle course Chico River (Santa Cruz). Six stations established: two reference upstream Gobernador Gregores town four downstre...

The North American genus Heterocloeon McDunnough is redefined and shown to be distinct from other two-tailed Baetis complex genera, including Acentrella Bengtsson and Plauditus Lugo-Ortiz and McCafferty, which are also represented in North America. Heterocloeon is divided into three distinct subgenera, including Heterocloeon s.s., Iswaeon McCafferty and Webb, new subgenus, and Jubilatum McCaffe...

Material collected in 1974 during the Austrian Hydrobiological Mission of F. Starmühlner to Comoros and recent years by one authors (NM) course an ongoing freshwater monitoring program Mayotte is basis this first larger study mayfly family Baetidae Archipelago (Comoros, Mayotte). We identified eight different species using morphological characters, four on both Mayotte, three only only. Two spe...