Cheumatopsyche dubitans, ME Mosely, 1942

Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), Zootaxa 1802, pp. 1-248 : 189

Cheumatopsyche dubitans species group

Species group of bilobed segment X with long ventroapical lobe. Close to C. lepida species groups, differentiated mostly by the differently formed, reduced unsetose mesocaudal lobe, although difficult to separate in transitional state if the mesocaudal margin of segment X developed convex, not concave or straight-cut in dorsal aspect but produced into short blunt rounded end. The basic genital plan of the genus otherwise is com- pletely present also in this group. Some species (albofascia, brunnea, doan, dubitans , nohondoan, sexfasciata , quadrifasciata) with patterned forewing membrane and several have Fork I present on hind wing. In a few species segment IX with ventrocaudal spiny lobe. Segment X bilobed. The bare unsetose mesocaudal lobe mostly reduced. A pair of setose ventroapical lobe produced into a long process straight or mesad curving in dorsal aspect and straight or dorsad curving in lateral aspect, encircling wide and deep dorsal and lateral interlobular gaps in dorsal and lateral aspects while dominating the termination of segment X. Wartlike lateral setose area, the vestigium of preanal appendages located usually centrally or distad on segment X. ( Oláh et al. 2008)