Alaskaperla (Zwick, 2007)

Judson, Sarah W. & Nelson, C. Riley, 2012, 3541, Zootaxa 3541, pp. 1-118 : 26

Alaskaperla

DIAGNOSIS: This monotypic genus is distinguished by a continuous dark strip that extends from the pronotum through the tip of the abdomen ( Fig. 110). Unlike Haploperla , adults do not also have dark markings on the head. The male epiproct is smooth, cylindrical, tab that is directed anteriorly ( Fig. 111). The female subgenital plate completly covers sternum 9 ( Fig. 112), is parallel sided, and truncate apically. The head of nymphs has a characteristic U-shaped dark pigmentation that bisects ocellar region ( Fig. 113).

DISTRIBUTION—Global: Nearctic & East Palearctic— Regional: AOB— Aimag: AR^, KhG, OV^, SE^, TO^, UB*, ZA^.