CallibaetisEaton (Ephemeroptera: Baetidae) from Brazil

New record of mayflies (Ephemeroptera, Insecta) from Maranhão State, Northeast Brazil

“…In the laboratory, the material was sorted in the family level and successively identi ed by mounting permanent slides, and identi ed using specialized bibliography (e. Comments: Nymphs were sampled in the Itamacaca Stream and reared in the laboratory until the emergence of male and female imagos. They were identi ed based on the nymphal description (Cruz et al 2014) and the key to identify nymphs of Callibaetis from South America (Cruz et al 2017) using the following characters: female fore wing with single marginal intercalary vein, with area around bulla and some spaces on outer margin pigmented (Fig. 2B); hind wing venation hyaline (Fig.…”

New records of Ephemeroptera (Insecta) from Roraima State, Northern Brazil

“…We consider it as populational variation because no more relevant differences were found. Peters 1978Peters , 1983savaGe 1986;da-silva 1992;Boldrini et al 2009Boldrini et al , lima et al 2012cruz et al 2014;Gonçalves et al 2017;santos et al 2017) have their known distributions extended to the far north in Brazil. In addition, the species Coryphorus aquilus, Miroculis fittkaui and Thraulodes marreroi are filling the existing gap in their species' distributions, showing continuity between Brazil and Venezuela.…”

“…Callibaetis cruentus Cruz, Salles & Hamada, 2014 Callibaetis cruentus cruz et al 2014: 13 Male imago. 1) Dorsal portion of turbinate eyes oval; 2) forewing hyaline with black bands transversally, medially with transverse band complete; 3) marginal intercalary veins paired, except between veins ICu2 and A; 4) hind wing hyaline with brown marks basally, medially and apically; 5) costal process of hind wing compound; 6) abdominal sterna with many reddish spots, laterally with reddish brown spot, medially one brown mark and submedially with two light black marks; 7) forceps segment I cylindrical.…”

“…Its find in this study represents the first record of this species in Roraima state. Cruz, Salles & Hamada, 2014 Callibaetis gelidus cruz et al 2014: 23 Diagnosis. Male imago.…”

Ephemeroptera (Insecta) from the metropolitan region of Santarém, Pará, Brazil

“…Comment. Species described by Cruz et al (2014) based on material from Pará (Parauapebas -Flona do Carajás). This is the first record of this species for the metropolis of Santarém.…”