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 macropygeus sp. n. ( Figs 1 q ; 2 ae & af; 3 s; 4 q; 5 s; 6 r; 7 ap & aq; 8 ae) Diagnosis . Pygofer lobe elongate, narrow; 1.3–1.6 times as long a width at base ( Fig. 1 q ). Aedeagal shaft relatively short, up to twice as long as length between dorsal apodeme and preatrium ( Fig. 3 s ). Plate apex broadly rounded; 1.5–1.6 times as long as wide ( Figs 2 ae & af). Etymology . Greek, for the long ( makros ) and narrow pygofer lobe ( pyge ). Male and female . Ochraceous. Paired light brown markings on vertex and medially of ocellus. Pygofer lobe fuscous; posterior margin of pygofer near anal tube with dorsolateral paired or contiguous fuscous markings. Tegmina rarely with fuscous markings. Hind wing less than one third as long as tegmina ( Fig. 8 ae). Male . Dimensions . (n = 39) Length : apex of vertex to apex of tegmina 2.0– 2.3 mm ; apex of vertex to apex of abdomen 2.3–2.9 mm ; vertex medially 0.4–0.5 mm ; vertex next to eye 0.3 mm ; pronotum medially 0.3 mm . Width : head 0.8–0.9 mm ; pronotum 0.7–0.8 mm . Ocellar diameter 22.5–29.6 µm; ocellocular distance 36.4–47.3 µm. Genital capsule . Pygofer square; ventral posterior margin bulbous, partially sclerotized; dorsal posterior margin lobate ( Fig. 1 q ). Pygofer lobe unique: more elongate and narrower than in any other species of Pravistylus , acutely triangular, 1.3–1.6 times as long as basal width; about one third as wide as width of the pygofer; longer and narrower than in any other species ( Fig. 1 q ). Plate posterior margin broadly rounded, similar to that of P. lobus ; setation variable, up to 10 macrosetae subapically ( Fig. 2 ae), or sometimes without macrosetae ( Fig. 2 af); 1.5–1.6 times as long as wide. Aedeagal shaft, in lateral view, arising ventrally from atrium; preatrium short; shaft relatively short (up to twice as long as dorsal apodeme); gonopore oblique, lateroventral, subapical ( Figs 3 s , 4 q ). Style distal part far from anterior medial lobe; apophysis basally parallel-sided, apex acutely truncate; preapical angle acute; preapical lobe right-angled; anterior medial lobe long ( Fig. 5 s ). Connective, in lateral view, straight; with apex curved dorsally; in dorsal view of uniform width, stem one third as long as arms ( Fig. 6 r ). Female . Dimensions . (n = 11) Length : apex of vertex to apex of tegmina 2.1–2.3 mm ; apex of vertex to apex of abdomen 2.8–3.1 mm ; vertex medially 0.5 mm ; vertex next to eye 0.3–0.4 mm ; pronotum medially 0.3 mm . Width : head 0.9 mm ; pronotum 0.8–0.9 mm . Ocellar diameter 17.9–29.2 µm; ocellocular distance 37.9–52.4 µm. Genitalia. Sternite 7 hind margin produced into triangular ligula, about half as wide as base of sternite; apex notched ( Figs 7 ap (ligula long) & aq (ligula short)). Material examined . Holotype male. South Africa , Free State . Platberg, summit W, 28°10ʹS , 29°12ʹE , 2319 m , 11.i.2007 , sweeping, Themeda triandra and Tristachya leucothrix common ( SANC ). Paratypes . 45♂ , 17♀ . Eastern Cape . 1♂ , Ongeluksnek, site 39, 30°20ʹS , 28°19ʹE , 1824 m , 5.xii.2005 , MDTP survey. Free State . 1♂ , Golden Gate National Park, 28°30ʹS , 28°40ʹE , 8.i.1986 , J.G. Theron; 2♂ , 1♀ , Phuthaditjhaba, 20 km W, 29°31ʹS , 28°38ʹE , 1950 m , 6.iii.2002 , M. Stiller, J. du Plessis, sweeping, common grass species: Bothriochloa insculpta , Cymbopogon excavatus , Digitaria sp. , Eragrostis capensis , E. curvula , E. gummiflua , E. plana , Paspalum dilatatum ; 2♂ , Golden Gate, site 3, 28°30ʹS , 28°37ʹE , 1960 m , 22.x.2005 , MDTP survey, white and blue pan trap; 2♂ , Golden Gate, site 5, 28°31ʹS , 28°34ʹE , 1890 m , 23.x.2005 , MDTP survey, yellow and white pan trap; 3♂ , 1♀ , Golden Gate, site 8, 28°30ʹS , 28°39ʹE , 2065 m , 25.x.2005 , MDTP survey, sweeping, also white pan trap; 5♂ , 2♀ , Platberg, E near masts, 28°15ʹS , 29°12ʹE , 2362 m , 11.i.2007 , sweeping, Themeda triandra and Tristachya leucothrix common; 14♂ , 6♀ , same data as holotype ; 4♂ , 2♀ , Muller’s Pass near summit 27°51ʹ39.68ʺS , 29°41ʹ10.15ʺE , 1878 m , 25.xii.2008 , M. Stiller, sweeping grass & forbs. KwaZulu-Natal . 12♂ , 2♀ , Oliviershoek Pass, summit, 28°33ʹS , 29°05ʹE , 1741 m , 27.xii.2004 , sweeping, Themeda triandra dominated pasture, regrowth after fire; 1♂ , Little Switzerland Hotel, hillside W slope, 28°35ʹS , 29°03ʹE , 1600 m , 8.v.2007 , sweeping; 2♀ , Little Switzerland Hotel, ridge summit, 28°34ʹS , 29°02ʹE , 1770 m , 8.v.2007 , sweeping, grass in Protea veld; all M. Stiller. Mpumalanga . 2♂ , 3♀ , Ossewakop, Wakkerstroom, 27°23ʹS , 30°09ʹE , 2160 m , 7.iii.2002 , M. Stiller, J. du Plessis, DVac, on rocky outcrop and tall grass on deep soil ( BMNH , INHS , SANC ). Remarks . The distinctly elongate and narrow pygofer lobe, that is longer than in any other species, is the unique feature of P. macropygeus . This species is closely related to P. indistinctidiscus . Both have similar plate proportions and shapes. In P. indistinctidiscus the plate is 1.0–1.4 times as long as wide with a similarly rounded apex ( Figs 2 ag & ah). That of P. macropygeus is 1.5–1.6 times as long as wide and also with a rounded apex ( Figs 2 ae & af). The aedeagal shaft in P. indistinctidiscus ( Fig. 3 af) is also much longer than that of P. macropygeus ( Fig. 3 s ). The style of P. indistinctidiscus is more acute and the dorsal apophysis is elongate and narrow ( Fig. 5 q ), whereas in P. macropygeus it is less acute and the dorsal apophysis is short and wide ( Fig. 5 s ). Also the convex lateral margins of the ligula of the female sternite 7 of P. indistinctidiscus ( Figs 7 x –aa) differs from that of P. macropygeus , that is narrower and more triangular ( Figs 7 ap & aq). Pravistylus lobus has a similar plate shape to both the species above, but has the apex of the connective fused with the paraphyses. However, no other species has a similarly elongate and narrow pygofer lobe.