A new species of Camelobaetidius Demoulin, 1966 (Ephemeroptera: Baetidae), from the Colombian Orinoco River basin

Abstract

Three species of Camelobaetidius Demoulin, 1966 have been reported from Colombia until now, based on nymphs. We describe a fourth species based on nymphs from the Colombian Orinoco river basin. The new species can be recognized by: 1) labrum narrowly rounded anteriorly; 2) segment II of labial palp with a short rounded distomedial projection; 3) incisors of right mandible with eleven denticles; 4) gills absent from the bases of coxae; 5) tarsal claws with ten denticles; 6) outer margin of forefemur with a row of about 23 long, spine-like setae; 7) posterior margin of tergum IV with truncate spines, and 8) terminal filament almost as long as cerci. [Zoobank URL: urn:lsid:zoobank.org:act:500CF998-8EF3-43E3-BA8B-F062B92768F3]

The genus Camelobaetidius Demoulin (Ephemeroptera: Baetidae) in America: Phylogenic and biogeographic analyses

“…Camelobaetidius has 45 species described, of which 26 were described from nymphs, five from imagoes, 13 from nymphs and male imago and one from nymph and female imago (Jacobus and McCafferty, 2005;Salles and Serrão, 2005;Domínguez et al, 2006;Boldrini et al, 2012a, b;Boldrini et al, 2013;Boldrini and Pes, 2014;Sibajaya-Araya and Esquivel, 2018;Salinas-Jimenez et al, 2019). Dactylobaetis described by Traver and Edmunds in 1968, was proposed as a sister group of Camelobaetidius (Traver and Edmunds, 1968).…”