Neoperla luhohonis, 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 : 21

( Figs. 37–41 )......................................................................... 8 N. luhohonis n. sp. 8' No external spines on penis tube, endophallus different....................................................... 9 9 Endophallus curved near base, exiting from penis subterminally on ventral side, the armature consists of stout triangular spines without order ( Figs. 33–36 )............................................................... 7 N. rostrata n. sp. 9' Endophallus protrudes terminally from penis tube and is almost straight......................................... 10 10 Apex of penis tube unmodified. Endophallus covered by short conical spines ( Figs. 91–93 )........ 17 N. planidorsum n. sp. 10' A bare membranous nipple dorsally on penis apex, endophallus long and straight, with armature of long needles ( Figs. 26–28 )

Figures

FIGURES 33–41. Neoperla rostrata n. sp. and N. luhohonis n. sp., the male holotypes: N. rostrata, 33, tergites 6–10; 34, penis with evertedendophallus,Scales are1.0mm forthe abdomen,100µm forthe penis.;35, 36, details of armatureare tothe samescale. N. luhohonis, 37, abdominal tip in dorsal view, not to scale; 38, the partly everted penis in side view, the endophallus remains attached to the accidentally detached distal portion (39). 40, 41, enlarged details, to the same scale. Solid lines show location of enlarged details, the broken line connects points originally connected before the rupture. Scales are 100µm.

FIGURES 91–95. Neoperla planidorsum, n. sp., holotype male: 91, abdominal tip, dorsal and partial lateral view, tergites numbered; 92, everted penis. 93, everted penis of ♁ from Suakoko. Female paratype: 94, caudal edge of S7 and genital situs in S8, diagrammatic, scaly area of SSt shaded, asterisk marks location of enlarged inset, the scale is 5µm; 95, egg. mi, micropyle; mic, micropylar canal; sa, spermatheca; sd, spermathecal duct; SSt, spermathecal stalk; v, vagina.

FIGURES 26–32.Neoperla kalengonisn. sp.: 26, artificiallyevertedpenis ofa paratype;27, spines on endophallus of same, scale is 50µm; 28, paratype ♀, genital situs; 29, 30, eggs of paratypes, 30 courtesy of MPI of Limnology; 31, egg from South Sudan; 32, anchorpoleandcollarofeggfromLwiroR.Scalesare100µmunlessdifferentlyindicated,30nottoscale,29and31tothesamescale. sa, spermatheca; SSt, spermathecal stalk.