Neoperla socia, Zwick & Zwick, 2023

Zwick, Peter & Zwick, Andreas, 2023, Revision of the African Neoperla Needham, 1905 (Plecoptera: Perlidae: Perlinae) based on morphological and molecular data, Zootaxa 5316 (1), pp. 1-194 : 132

17 Compared to the vagina the SSt is wide and narrows caudally much. The straight egg costae are drawn out into high crests ( Figs. 441–442 )............................................................................... 77 N. socia n. sp.

17' Compared to the vagina the SSt is narrow; it is of uniform width............................................... 18

Figures

FIGURES 439–442. Neoperla socia n. sp., from Mutwanga. ♁ paratype (NEOP307): 439, abdominal tip, dorsal view, tergites and hemitergite 10 labeled; 440, penis with everted endophallus and detail of armature at site indicated by white arrow; the yellow arrow points at the annulated penis tip. ♀ paratype (NEOP306): 441, genital situs, sternites 7 and 8 labeled, the spermatheca happens to lie on top of the nail; 442, fragment of an egg with flanged costae; arrow indicates a micropyle in a sulcus. Scales are 100µm, unless differently indicated. n, nail; sa, spermatheca; SSt, spermathecal stalk; V, vagina.