Cryptonympha copiosa Lugo-Ortiz & McCafferty 1998

Taxonomy. This species, can be distinguished from the other species of the genus by the following combination of characters: 1) labrum with a pair of long subapical setae on dorsal surface; 2) mandibles with a tuft of setae between prostheca and mola, prosthecae robust; 3) right prosthecae with a bipectinate transverse seta; 4) segment II of labial palpi with a thumb-like distomedial projection; 5) hind wing pads absent; 6) tarsal claws with one row of denticles; 7) gills I strongly narrowed basally.

Distribution. Brazil, Colombia and Venezuela

Material examined. Two nymphs: Kauí stream, 5º 28´N, 61º 16´W; 1196 m; 24/ 11/ 2005; EG, AMO, CA and MEG cols. Material housed at IML.