Amphinemura Ris, 1902

Chen, Zhi-Teng, 2020, Two new species of Nemouridae (Insecta: Plecoptera) from China, European Journal of Taxonomy 651, pp. 1-16 : 9

Genus Amphinemura Ris, 1902

Amphinemura Ris, 1902: 384 . Type species: Nemoura sulcicollis Stephens, 1836 .

Diagnosis

Adult

Cervical gills highly branched.

Male

Paraprocts divided into 3 lobes and with spines or prongs on middle or outer lobes. Cerci membranous, short and unmodified. Dorsal sclerite of epiproct large and broad at base, extending dorsolaterally toward apex, with sclerotized lateral arms, apical portion large and extending laterally over ventral sclerite, bearing small spines or sclerotized scales; ventral sclerite strongly sclerotized, broad at base and tapering toward apex, forming median keel-shaped ridge, apical portion inserted between folds of dorsal sclerite and variously modified, bearing larges spines.

Female

Sternum 7 produced at distal margin, forming a small pregenital plate which covers part of sternum 8. Sternum 8 forming a subgenital plate of variable size but usually small and bifid.