Revision of the Southern African leafhopper genus Pravistylus (Hemiptera, Cicadellidae, Deltocephalinae) 2468 Author Stiller, M. text Zootaxa 2010 2010-05-14 2468 1 1 81 https://biotaxa.org/Zootaxa/article/view/zootaxa.2468.1.1 journal article 10.11646/zootaxa.2468.1.1 1175­5334 10094177 Pravistylus scolopygeus sp. n. ( Figs 1 af; 2 l; 3 w; 4 u; 5 h; 6 v; 7 bw–by; 8 bf) Diagnosis . Plate 1.7–1.9 times as long as wide; deeply notched subbasally; apices unequal in length, narrow, blunt ( Fig. 2 l ); plate similar to that of P. longitrunculus ( Fig. 2 k ). Pygofer lobe with sclerotized appendage on median surface ( Fig. 1 af). Aedeagus, in dorsal view, with base of shaft depressed, tapering towards apex ( Figs 3 w , 4 u ). Style with distal part close to base; apophysis very narrow ( Fig. 5 h ). Female sternite 7 ligula with triangular or rectangular ligula, base rectangular ( Figs 7 bw–by). Etymology . Greek, for the thorn-like ( skolos ) spine on the pygofer ( pyge ). Male and female . Ochraceous, sometimes with minor fuscous markings on vertex, generally with fuscous markings in inner anteapical, posterior discal and brachial cells ( Fig. 8 bf). Male . Dimensions . (n = 16) Length: apex of vertex to apex of tegmina 2.4–2.8 mm ; apex of vertex to apex of abdomen 2.7–3.1 mm ; vertex medially 0.5 mm ; vertex next to eye 0.3–0.4 mm ; pronotum medially 0.3–0.4 mm . Width : head 0.9–1.0 mm; pronotum 0.8–0.9 mm . Ocellar diameter 28.0 µm; ocellocular distance 32.8–51.2 µm. Genital capsule . Pygofer, in lateral view, with ventral posterior margin bulbous, membranous; dorsal posterior margin lobate ( Fig. 1 af). Pygofer lobe subapical, short, with medial spine-like process, curved ventrally ( Fig 1 af); width of lobe about ¾ as wide as width of pygofer ( Fig. 1 af). Plate roughly triangular; subbasal lateral margin emarginate, tufts of setae distally and proximally of emargination; apex sclerotized, narrow, rounded or truncate; both apices usually of dissimilar length; 3–8 uniseriate subapical macrosetae ( Fig. 2 l ); plate 1.7–1.9 times as long as wide. Aedeagal shaft, lateral view, arising medially from atrium; preatrium short; C-shaped; dorsal view, tapering toward apex, depressed; gonopore ventral, elongate, extending from apex into about one third of shaft ( Figs 3 w , 4 u ). Style distal part close to anterior medial lobe; apophysis elongate, curved, narrow with large basal, ventral tooth; preapical lobe acute ( Fig. 5 h ). Connective, in lateral view, with distal half slightly angled dorsad; dorsal view, stem narrow, rounded ( Fig. 6 v ). Female . Dimensions . (n = 11) Length : apex of vertex to apex of tegmina 2.4–2.9 mm ; apex of vertex to apex of abdomen 3.0– 3.4 mm ; vertex medially 0.5–0.6 mm ; vertex next to eye 0.3–0.4 mm ; pronotum medially 0.3–0.4 mm . Width : head 0.9–1.0 mm; pronotum 0.8–0.9 mm . Ocellar diameter 26.5–30.7 µm; ocellocular distance 35.7–50.8 µm. Genitalia. Sternite 7 with base rectangular, median posterior ligula about as long as median length of base; ligula variable: triangular ( Fig. 7 bw), with base triangular, apex parallel ( Fig. 7 bx) or ligula rectangular ( Fig. 7 by), V- or U-shaped notch; ventral surface of ligula and sternite with median ridge. Material examined . Holotype male. South Africa , Mpumalanga . Suikerboschfontein Farm , 25°56ʹS , 30°19ʹE , 1700 m , 3.ii.2001 , M. Stiller , sweeping, grass and forbs ( SANC ) . Paratypes . 16♂ , 12♀ . Limpopo . 1♂ , 1♀ , Sekororo Kloof near Burgersfort, 24°23ʹ6ʺS , 30°27ʹ39ʺE , 1430 m , 19.iii.2005 , M. Stiller, sweeping, very short grazed Cynodon dactylon (Poaceae) and other grass species; 2♀ , Sekororo Kloof, summit, 24°22ʹ55ʺS , 30.29ʹ20ʺE, 1830 m , 19.iii.2005 , M. Stiller, sweeping, steep E-facing shaded slope on summit; 5♂ , 4♀ , Sekororo Kloof, 24°22ʹ55ʺS , 30°29ʹ20ʺE , 1800 m , 19.iii.2005 , M. Stiller, sweeping, summit ridge grazed grass and forbs; 2♂ , 1♀ , The Downs , near black wattle plantation, 24°10ʹ40.46ʺS , 30°12ʹ04.77ʺE , 1460 m , 25.iv.2009 , M. Stiller , sweeping grass and forbs. Mpumalanga . 8♂ , 4♀ , same data as holotype ( BMNH , INHS , SANC ) . Remarks . The plate of this species ( Fig. 2 l ) is similar to that of P. longitrunculus ( Fig. 2 k ), with the sternite 7 of both females also depicting similarities. However the elongate process on the median surface of the pygofer lobe ( Fig. 1 af) is the distinctive feature of P. scolopygeus , and is sometimes visible in undissected specimens. The pygofer lobe in P. longitrunculus ( Fig. 1 p ) is much longer than in P. scolopygeus ( Fig. 1 af), the style has the distal part close to the base in both species with the apophysis digitate in P. longitrunculus ( Fig. 5 e ), but narrower in P.scolopygeus ( Fig. 5 h ). The aedeagal shaft is not compressed in P. longitrunculus ( Figs 3 ab, 4 z), and in the connective the stem wider ( Fig. 6 z ) than in P. scolopygeus ( Fig. 6 v ). No other species has a similarly pronounced process on the pygofer lobe, except a distinctly smaller tooth in P. odontopygeus ( Fig. 1 y ).