Camelobaetidius janae Dominique & Thomas

Nieto, Carolina, Grillet, Maria-Eugenia, Domínguez, Eduardo, Molineri, Carlos & Guerrero, Edmundo, 2011, The Family Baetidae (Insecta: Ephemeroptera) from Venezuelan Guayana’s Uplands, Zootaxa 2808, pp. 1-17 : 8

Camelobaetidius janae Dominique & Thomas in Dominique et al. 2000

( Figs. 27–36 )

Taxonomy. This species, described based on nymphs, can be distinguished from the other species of the genus by the following combination of characters: 1) labrum with 2 subapical setae near midline and 3–4 setae near lateral margin ( Fig. 27 ); 2) left mandible without setae between prostheca and mola ( Fig. 28 ), right mandible with setae between prostheca and mola ( Fig. 29 ); 3) lingua subequal to superlinguae and rounded apically ( Fig. 30 ); 4) maxillary palpi bifid ( Fig. 31 ); 5) segment II of labial palpi with a rounded distomedial projection ( Fig. 32 ); 6) coxal gills absent ( Fig. 33 ); 7) tarsal claws with 21–25 denticles ( Fig. 34 ); 8) posterior margin of terga with rounded projections ( Fig. 35 ); 9) posterior margin of paraproct with 3–4 spines ( Fig. 36 );10) terminal filament subequal in length to cerci.

Distribution. Brazil, French Guiana and Venezuela.

Material examined. One nymph: Yuruaní river, 5º 5´N, 61º 5´W, 880 m, 25/ 11/ 2005, EG, AMO, CA and MEG cols. Material housed at IML.

Figures

FIGURES 27 – 36. Camelobaetidius janae. Nymph. Mouthparts (Figs. 27 – 32): 27, labrum, left d. v., right v. v.; 28, left mandible v. v.; 29, right mandible v. v.; 30, hypopharynx v. v.; 31, maxilla v. v.; 32, labium, left v. v., right d. v. 33, leg I; 34, tarsal claw I. 35, posterior margin of tergum IV. 36, paraproct.