Neoperla excisa, Klapalek, Klapalek, 1909

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 : 131

2 The SSt is of similar width over its entire length ( Fig. 369 ). Egg ovoid, without distinct striae ( Figs. 370–372 ).............................................................................................. 64 N. excisa Klapálek

2' SSt with wide base, the longer distal part narrow ( Figs. 377–378 ). Egg drum-shaped, with levogyrous striae ( Fig. 379 )..... 3

Figures

FIGURES 365–372. Neoperla excisa Klapálek: 365, ♁ lectotype, dorsal view of abdominal tip (from Klapálek 1923b); 366, abdominal tip of ♁ from Bumbuna, Sierra Leone, tergites and HT10 labeled; 367, handsketch of hemitergites and abdominal tip (lateral view) of the actual lectotype specimen, drawn in 1973; 368, penis, ♁ from Makokou, Gaboon; 369, 370, genital situs and egg of ♀ from Walikale; 371, egg from Odzala N. P.; 372, chorion of Guinean specimen (NEOP236). Scales are 100µm, except 50µm in Fig. 372. a, anchor; n, nail; sa, spermatheca; SSt, spermathecal stalk.

FIGURES 373–385. Neoperla heideae n. sp. and N. larvata n. sp. N. heideae: 373, 374, abdominal tip and contracted penis of a misassociated paralectotype of N. excisa Klap. from Lolodorf (to the same scale), with the label in Sütterlin script; 375, contracted penis, dorsal view, 376, everted endophallus (from Libamba); 377, ♀ situs from near Kama (D. R. Congo); 378, ♀ situs (D. R. Congo, Odzala N.P., NEOP242); 379, egg (Sangmelina,Cameroon). N. larvata: 380, everted endophallus (CAR, Bayanga, NEOP240); 381, ♀ situs, sternites 8 and 9 labeled (Ghana, Ankasa Res.); 382, ♀ situs (Togo, Kati); 383, ♀ situs (Ghana, Volta R., Z21.41); 384, egg with detail, Guinea, Simbareya (NEOP237); 385, aberrant contracted penis, ♁ from Ivory Coast, Boa. The scales are 100µm; tergites, HT10 and cercus labeled. a, anchor; mi, micropyle; n, nail; sa, spermatheca; SSt, spemathecal stalk; V, vagina.