Rhyacophila schismatica

Sun, Chang-Hai, 2016, Notes on the Rhyacophila scissa species group with description of two new taxa from China (Trichoptera, Rhyacophilidae), Zootaxa 4072 (4), pp. 441-452 : 446

R. schismatica Diagnostic Species Complex

The R. schismatica Diagnostic Species Complex can be distinguished by the following male genitalic characters: (1) Segment X in dorsal view has its apex shallowly incised, or straight or slightly convex distally; (2) the upper branch of the second joint of each inferior appendage is broad, at least 1/2 as wide as the lower branch or the same width as the lower branch in some species. It now contains 7 previously described species and 1 new species and 1 new subspecies. All members (including 1 new species and 1 new subspecies) occur in China, with R. morsei morsei distributed in the most northern part of the Oriental Biogeographic Region ( Fig. 3 ).

Figures

FIGURE 3. Distribution map of the Rhyacophila schismatica Diagnostic Species Complex of the R. scissa Species Group. B = Bhutan; Ba = Bangladesh; Ca = Cambodia; Ch = China (P. Ch = Palaearctic China, O. Ch = Oriental China); I = India; L = Laos; M = Myanmar; N = Nepal; T = Thailand; V = Vietnam. — · · — = boundary between the Palearctic and Oriental Regions in China. Most of Palaearctic China is omitted in the map.