FIGURES 10–23 in A new classification of genus Neoperla and systematic studies of other Perlinae (Plecoptera: Perlidae)

FIGURES 10–23. Neoperla (N.) transvaalensis: 10, ♁ abdominal tip, dorsal view, tergites labeled; 11, everted penis; 12, ♀ genital situs; 13, egg, lateral view; 14, egg, in view on operculum. After Zwick & Zwick (2023). 15–23, Neoperla (Neoperla) spp., occipitalis-, choctaw- and aeripennis-groups, female genitalia and eggs. 15, N occipitalis; 16, the same, enlarged fragment of chorion; 17, N. clymene, open rhombus indicates region with slender microtrichia; 18, N. gaufini Stark & Baumann, 1978; 19, N. carlsoni Stark & Baumann, 1978; 20, N. aliqua Zwick, 1983, SSt; 21, N. sp. K, SSt (Zwick, 1983); 22, N. aliqua (Zwick, 1983); 23, N. sumatrana (Enderlein, 1909a). Photographs are originals; 15 from Zwick (1987), the other after Zwick (1973b, 1983) and as indicated. a, anchor; c, collar; gp, gonopore; Ht, hemitergite; Htc, hemitergal callus; m, mi, micropyle; od, common oviduct; ol, or, left and right oviduct; op, operculum; S8, sternite 8; sa, spermatheca; sc, sclerite; sd, spemathecal duct; SSt, spermathecal stalk; su, sulcus; V, vagina.Published as part of Zwick, Peter, 2023, A new classification of genus Neoperla and systematic studies of other Perlinae (Plecoptera: Perlidae), pp. 101-131 in Zootaxa 5339 (2) on page 107, DOI: 10.11646/zootaxa.5339.2.1, http://zenodo.org/record/829716