Eucapnopsis, Okamoto, 1922

Judson, Sarah W. & Nelson, C. Riley, 2012, 3541, Zootaxa 3541, pp. 1-118 : 18

Eucapnopsis

DIAGNOSIS: This genus is characterized by particularly short cerci with fewer than 11 segments in adults and less than 15 in nymphs ( Fig. 28). The male epiproct is short and stout ( Fig. 44), especially in comparison to other Mongolian capniids and Capnia in particular whose epiproct is of comparable width but is much longer. Male sternum 9 has a vesicle ( Fig. 45) with a structure similar to the ventral vesicles in Isocapnia . The female subgenital plate is membranous with two lateral sclerites that extend medially ( Fig. 46). The lacinia of the nymph has 30 or more even—length teeth ( Fig. 27), whereas other capniids have fewer teeth that vary in size along the length of the ventral comb ( Fig. 29).

DISTRIBUTION—Global: Amphi-Pacific— Regional: AOB*, IDB*— Aimag: KhD*, SE*.

DISCUSSION: We did not document Eucapnopsis during our surveys, but the species Eucapnopsis brevicauda is known from the Eroo River (Surenkhorloo 2009).