Neoperla laticollis, 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 : 20

2 Everted endophallus stands at right angle to penis tube, armature consists almost entirely of large hooks ( Fig. 5 )............................................................................................ 2 N. laticollis Klapálek

2' Direction of penis tube and everted endophallus similar, armature mixed, includes also many small spines (e.g., Fig. 3 ).... 3

Figures

FIGURES 1–5. Neoperla transvaalensis (Enderlein) (1–3) and N. laticollis Klapálek (4, 5): 1, male tergites 7–10, dorsal and lateral views; 2, penis, dorsoventral; 3, artificially everted penis, the retractor apodemes (sclerotised knob) are on the dorsal side; 4, male tergites 7–10; 5, artificially everted penis. The scales are 100µm, other figures not to scale. bs, bare strip; ce, cercus; gp, gonopore; vlb, ventrolateral spine bands.