Descrição do imago macho de Caenis cuniana Froehlich, com notas biológicas (Ephemeroptera, Caenidae)

Revision of Campsurus violaceus species group (Ephemeroptera: Polymitarcyidae) with new synonymies and nomina dubia in Campsurus Eaton, 1868

“…We have only studied two ready to molt nymphs that seems undistinguishable from C. violaceus at this time, except for the relative smaller most basal denticle on the inner margin of mandibular tusk of C. truncatus. Mandibular tusks of these nymphs present a regular denticulation on the inner margin, differing from the original description (as C. melanocephalus) where Pereira & da Silva (1991) characterize the species as having an "irregular denticulation". Distribution.…”

“…Campsurus truncatus, known from all the stages, presents male genitalia similar to C. violaceus, except that penes are shorter and more robust with a truncate apex, pedestals are different in form, with both posterolateral corners similar in length, the outer thinner than the inner one. Characters given by Puthz (1973) and Pereira & da Silva (1991) to distinguish C. mahunkai and C. melanocephalus respectively, showed to be variable in a larger series from different localities studied by us. For example the black color on head and other dorsal portions of adult C. melanocephalus is the main defining character used by Pereira & da Silva to distinguish this species, but specimens showing pale to very obscure coloration but with identical genitalia are present in different series studied by us.…”

Efemeropterofauna (Insecta: Ephemeroptera) do trecho ritral inferior do Rio Campo Belo, Itatiaia, RJ: composição e mesodistribuição

“…Tal fato está, provavelmente, relacionado a uma identificação mais precisa dos táxons, diretamente ligada aos recentes avanços nos estudos de cunho taxonômico acerca da ordem Ephemeroptera no país e na América do Sul (e.g. Pereira & Da-Silva, 1990;Pescador & Peters, 1990;Peters & Pescador, 1991;Da-Silva, 1991, 1993, 1997Da-Silva & Pereira, 1992;Lugo-Ortiz & McCafferty, 1994, 1996a,b,c,d, 1997, 1999aDominguez et al, 1996;McCafferty, 2000;Da-Silva & Lopes, 2002;Lugo-Ortiz et al, 2002;Salles & Lugo-Ortiz 2002 a, b;Salles et al, 2003). Com tais avanços, a família Baetidae, por exemplo, sofreu expressivas modificações em sua taxonomia, com descrições de novos gêneros e espécies.…”

Erratum: Trait evolution of the male genitalia in the speciose genus Caenis, with emphasis on forcipes structure (Insecta: Ephemeroptera: Caenidae). Integrative Systematics 5 (1): 1–16

“…Forcipes of the herein mentioned species were either redrawn from original descriptions and other publications (Malzacher 1986(Malzacher , 1990(Malzacher , 1991(Malzacher , 1993(Malzacher , 2001(Malzacher , 2010(Malzacher , 2011(Malzacher , 2013(Malzacher , 2015(Malzacher , 2021Da Silva 1993;Malzacher & Staniczek 2006pescador & richard 2006;Molineri 2009;liMa et al 2016…”