Neoperla africana, Klapalek, Klp. 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 : 51

4 On each side of the contracted penis tip a few spines form a lateral row. On the everted endophallus these spines stand before a background of flat scales and truncate spines forming a sleeve around the endophallus base and are therefore less easily seen. Beyond the sleeve spines and hooks occur all around the endophallus, more distally most of the ventral side is bare. Large hooks form the top dorsolateral spine row ( Figs. 116–118, 120–122 ), other spines are smaller........... 23 N. africana Klapálek

4' No lateral spine row at penis tip, no scaly pavement around base of endophallus, no row of large hooks along endophallus side, spines of fairly uniform size (e.g., Figs. 138 , 143 )............................................................ 5

Figures

FIGURES 114–122. Neoperla africana Klapálek: ♁ from Makokou, Gaboon: 114, 115, abdominal tip, dorsal and lateral view; 116, 117 contracted penis, dorsal and lateral; 118, partly everted endophallus, lateral. 119–121, the lectotype ♁: 119, Klapálek’s labels; 120, penis, endophallus artificially everted; 121, base of same, white arrow points at the transverse short spine group. 122, male from Ghana, Volta region, Wli Falls, black arrow points at the recurrent tube inside the penis. Scales are 100µm, others not to scale. ll, lateral line; n, membranous notch; rt, recurrent tube; sl, sleeve of dense scale-like spinules; so, soft ventrobasal region of penis tube; sr, short spine row.

FIGURES 135–142. Neoperla panafricana n. sp., male abdominal tip and penis with everted endophallus: 135–137, holotype from Mkozi R. NEOP158; 138, Guinea (no details); 139, Namibia, Kunene R.; 140, R. S. Afr., Legalameetse, NEOP154; 141, Ivory Coast, Férédougouba; 142, Senegal, Touba, NEOP131. The scale is 200µm, all penes to similar scales.

FIGURES 143–149. Neoperla camerunensis (Enderlein), penes and everted endophalli: 143, from Makak, endophallus not completely everted (USNM_086); 144, 145, holotype of the synonymous N. haugi from Lambaréné, before and after artificial eversion of endophallus; 146, penis tip with protruding base of endophallus, specimen from Ghana,Ankasa Reserve (NEOP125). 147, Congo, Boma (Z19.035); 148, Ivory Coast, Cavally R.; 149, Ethiopia, Cojeb R. (NEOP123). Figs. 146–147 to the same scale, the others to a scale similar to Fig. 143. so, soft ventrobasal region of penis tube.