Sinacroneuria

Stark, Bill P. & Sivec, Ignac, 2008, Studies On Sinacroneuria Yang & Yang (Plecoptera: Perlidae) With Description Of New Species From China And Vietnam, Illiesia 4 (15), pp. 150-153 : 150

Provisional Key for Sinacroneuria Males

( S. flavata unknown)

1 Biocellate ( Fig. 1 ); tergum 9 without small posteromesal lobe ( Fig. 2 ) …………….… biocellata

1’ Triocellate; tergum 9 with small posteromesal lobe ( Fig. 5 ) ………………………………………. 2

2 Tergum 9 spinule patch narrowly divided; tergum 10 with complete median membrane strip; Y-stem of aedeagal sclerite about as long as arms ……………………………………………... orientalis

2’ Tergum 9 spinule patch undivided ( Fig. 5 ); tergum 10 membrane strip not reaching anterior margin; Y-stem of aedeagal sclerite about half as long as arms ( Fig. 6 ) ……………………. bicornuata

Figures

Figs. 1-4. Sinacroneuria biocellata. 1. Head and pronotum, 2. Male terminalia, 3. Aedeagus, dorsal aspect, 4. Aedeagus, lateral aspect.

Figs. 5-6. Sinacroneuria bicornuata. 5. Male terminalia, 6. Aedeagus, ventral aspect.