Pravistylus macropygeus Stiller 2010, sp. n.
Creators: name: Stiller, M.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Pravistylus
Pravistylus macropygeus

description: 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.
description: Published as part of Stiller, M., 2010, Revision of the Southern African leafhopper genus Pravistylus (Hemiptera, Cicadellidae, Deltocephalinae) 2468, pp. 1-81 in Zootaxa 2468 (1) on page 28, DOI: 10.11646/zootaxa.2468.1.1, http://zenodo.org/record/10094177