Elginus minutulus, Stiller, M., 2009

Stiller, M., 2009, Revision of Elginus Theron (Hemiptera: Cicadellidae: Deltocephalinae) with the description of two new genera and comments on the grassland leafhopper fauna in South Africa, Zootaxa 2135 (1), pp. 1-56: 20-21

publication ID

http://doi.org/ 10.11646/zootaxa.2135.1.1

persistent identifier

http://treatment.plazi.org/id/03BD0C4B-FFAA-D16E-FF46-FD53FDA328EB

treatment provided by

Felipe

scientific name

Elginus minutulus
status

sp.n.

Elginus minutulus   sp.n.

( Figs 26 View FIGURES 25–32 , 67 View FIGURES 51–77 , 94 View FIGURES 78–104 , 121 View FIGURES 105–130 , 146 View FIGURES 131–156 , 171 View FIGURES 157–179 , 196 View FIGURES 180–205 , 222 View FIGURES 206–232 , 248 View FIGURES 233–258 , 267 View FIGURES 259–273 )

Diagnosis. Aedeagal shaft with apex deflected left, perpendicular to shaft.

Etymology. Latin, small size, referring to this species being the smallest of all species of Elginus   .

Colour. Male. As in Fig. 26 View FIGURES 25–32 .

Dimensions. Male (n = 47). Lengths: apex of vertex to apex of tegmina 2.6–2.9 mm, apex of vertex to apex of abdomen 2.1–2.5 mm; vertex medially 0.3–0.4 mm; vertex laterally next to eye 0.2–0.3 mm; pronotum medially 0.3 mm; scutellum medially 0.2–0.3 mm. Maximum widths: head 0.8 mm; pronotum 0.6–0.7 mm; scutellum 0.3–0.4 mm. Ocellus: diameter 25–31 µm; ocellocular distance 36–50 µm.

Abdominal apodemes. Male. Fig. 267 View FIGURES 259–273 .

Genital capsule. Male. Aedeagal shaft basally compressed, apically tubular, almost straight in dorsal view; apical fifth right-angled, directed exclusively left (dorsal view); in lateral view slightly curved ventrad; gonopore at apogee; shaft short, 1.3 times as long as dorsal apodeme ( Figs 67 View FIGURES 51–77 , 94 View FIGURES 78–104 ). Connective as in Fig. 121 View FIGURES 105–130 . Plate apex rounded; medial margins separated by about 15°; 4–8 uniseriate macrosetae ( Fig. 146 View FIGURES 131–156 ). Pygofer lobe broadly rounded ( Figs 171 View FIGURES 157–179 , 196 View FIGURES 180–205 ). Style apophysis wide, straight margins; almost reaching apex of plate; apophysis 0.5 times as long as median arm ( Fig. 222 View FIGURES 206–232 ).

Dimensions. Female (n = 42). Lengths: apex of vertex to apex of tegmina 3.0– 3.4 mm, apex of vertex to apex of abdomen 3.1–3.5 mm; vertex medially 0.5–0.6 mm; vertex laterally next to eye 0.3–0.4 mm; pronotum medially 0.3–0.4 mm; scutellum medially 0.3–0.4 mm. Maximum widths: head 0.9–1.0 mm; pronotum 0.8–0.9 mm; scutellum 0.4–0.5 mm. Ocellus: diameter 26–32 µm; ocellocular distance 40–54 µm.

Genital capsule. Female. Sternite VII with rounded margin, with two circular sclerotized areas ( Fig. 248 View FIGURES 233–258 ). Third valvula with one or three long setae (34.1–34.8 µm). Second valvula with irregular serration.

Material examined. Holotype male. South Africa, KwaZulu-Natal. Evatt Police Station, 30°02ʹS 29°21ʹE, 1790 m, 23.iv.2002, DVac heavily grazed grass M. Stiller, E. Breytenbach ( SANC). Paratypes (68♂, 55♀, 10 nymphs). Eastern Cape. 6♂, 8♀, road between Barkly East and Elliot, 31°12ʹS 27°58ʹE, 1962 m, 27.iv.2006, M., Stiller, DVac road reserve and grazed pasture; 3♂, Devilʹs Bellows Neck, 32°25ʹS 26°40ʹE, 1646 m, 19.iv.2006, M. Stiller, DVac grazed pasture; 1♀, Doon Farm Thomas River Cathcart, 32°28ʹS 27°17ʹE, 1115 m, 24.iv.2006, M. Stiller, DVac wet grassland on ridge with Aloes; 1♂, Rhodes, 30°51ʹS, 27°54ʹE, 1965 m, 27.iv.2006, M. Stiller, DVac grass and forbs in grazed pasture, with Eragrostis spp.   ( Poaceae   ) dominant. Free State. 2♂, Ficksburg, 28°53ʹS 27°53ʹE, 19.xii.1978; 2♂, Ficksburg, 28°53ʹS 27°53ʹE, 30.i.1981; 3♂, 2♀, Warden, 27°56ʹS 29°00ʹE, 30.i.1981; 2♂, 1♀, Golden Gate, 28°31ʹS 28°37ʹE, 20.xii.1982; 3♂, Golden Gate Park, 28°31ʹS 28°37ʹE, 8.i.1986; all J.G. Theron; 3♂, 2♀, Platberg on summit, E near masts, near Harrismith, 28°15ʹS 29°12ʹE, 2362 m, 11.i.2007, M. Stiller, sweeping grassland with Themeda triandra   and Tristachya leucothrix   ( Poaceae   ) common; 2♂, 3♀, Platberg on summit W, near Harrismith, 28°10ʹS 29°12ʹE, 2319 m, 11.i.2007, M. Stiller, sweeping grassland with Themeda triandra   and Tristachya leucothrix   ( Poaceae   ) common; 1♂, Muller’s Pass near summit 27°51ʹ39.68ʺS 29°41ʹ10.15ʺE 1878 m 25.xii.2008 M. Stiller, sweeping grass & forbs. KwaZulu-Natal. 1♂, Bergville, 28°44ʹS 29°21ʹE, 20.i.1981, J.G. Theron; 1♂, Pumula Farm & vicinity, 29°02ʹS 29°26ʹE, 16–20.x.2000, M. Stiller, sweeping unburned moribund grass; 1♂, Giant’s Castle, 29°15ʹS 29°32ʹE, 9.i.2002; 1♀, Giant’s Castle, 29°15ʹS 29°31ʹE, 9.iii.2002; 1♀, Giant’s Castle, 29°12ʹS 29°31ʹE, 9.iv.2002; 2♀, Giant’s Castle, 29°14ʹS 29°32ʹE, 15.iii–iv.2002; 3♂, Giant’s Castle, 29°13ʹS 29°32ʹE, 15.iii–iv.2002; 1♂, Giant’s Castle, 29°15ʹS 29°32ʹE, 16.xi.2002; all W. Bullock; 2♂, Witsieshoek Mountain Resort, 29°41ʹS 28°53ʹE, 2200 m, 15.iv.2002, DVac short grass and forbs; 3♂, 4♀, Mike’s Pass, 28°58ʹS 29°14ʹE, 1900 m, 16.iv.2002, DVac, grass & forbs, moribund grass; 4♀, wetland on Meander Hut road, 29°32ʹS 29°16ʹE, 2100 m, 18.iv.2002; 1♂, 4♀, 4 nymphs, Bushman’s Neck Hikers Hut, 29°12ʹS 28°49ʹE, 1933 m, 22.iv.2002, DVac shorter grass near hut, probably burned more often; DVac longer grass; 1♂, Mlambondja River Valley, 29°46ʹS 28°46ʹE, 1916 m, 22.iv.2002, DVac grass and forbs on hill above terrace next to river; 2♂, 4♀, Evatt Police Station, 30°02ʹS 29°21ʹE, 1790 m, 23.iv.2002, DVac heavily grazed grass; all M. Stiller, E. Breytenbach; 2♂, 2♀, road between Bulwer and Underberg, 29°51ʹS 29°42ʹE, 1651 m, 25.xii.2004, sweeping grass & forbs, Themeda triandra   dominated grassland, disturbed, brambles present (grazed), regrowth after fire; 1♂, 1♀, Bulwer Mountain 29°49ʹS 29°45ʹE, 1802 m, 25.xii.2004, sweeping Heteropogon contortus   ( Poaceae   ) dominant in grassland; 6♂, 5♀, 2 nymphs, Impendhle NE, 29°34ʹS 29°52ʹE, 1796 m, 26.xii.2004, sweeping grass & forbs, Heteropogon contortus   dominant, regrowth after fire; 4♂, Kamberg SE, 29°27ʹS 29°46ʹE, 1783 m, 26.xii.2004, sweeping heavily grazed field, mostly grass; 1♀, Lower Loteni, 29°33ʹS 29°44ʹE, 1492 m, 26.xii.2004, sweeping grass & forbs, regrowth after fire; 2♂, 1♀, Arthur’s Seat Mountain 28°54ʹS 29°26ʹE, 1583 m, 27.xii.2004, sweeping heavily grazed field, summit of hill; 3♂, 3♀, Oliviershoek Pass summit, 28°33ʹS 29°05ʹE, 1741 m, 27.xii.2004, sweeping Themeda triandra   dominated grassland, grazed field, regrowth after fire; 6♂, 7♀, 3 nymphs, road between Barkly East and Elliot 31°11ʹ44.76ʺS 27°48ʹ30.78ʺE, 1962 m, 27.iv.2006; 2♂, 2♀, Mt Currie, 30°29ʹ8.28ʺS 29°22ʹ53.4ʺE, 1524 m, 30.iv.2006; 4♂, 2♀, Groenvlei 16.5 km SE Wakkerstroom, 27°29ʹS 30°14ʹE, 1907 m, 2.ii.2007, DVac grass and forbs in road verge/reserve; 2♂, sandstone hills in valley near Fika Patso Dam, 28°41ʹS 28°41ʹE, 2000 m, 8.iv.2007, sweeping, grass and forbs; 1♀, Muller’s Pass near base 27°51ʹ49.78ʺS 29°47ʹ41.81ʺE 1407 m 25.xii.2008, M. Stiller, sweeping grass & forbs. Mpumalanga. 1♂, 2♀, Chrissiesmeer, 26°19ʹS 30°12ʹE, 25.ii.2001, sweeping grass; 3♂, 4 nymphs, Belfast 1 km west, 25°41ʹS 29°58ʹE, 1900 m, 17.ii.2005, DVac grass & forbs, grazed field; all M. Stiller ( AMNH, BMNH, SANC).

Remarks. The sternite VII of E. minutulus   is the most uniformly rounded of all Elginus species   , with that of E. furcillatus   having slightly deeper indentations ( Fig. 244 View FIGURES 233–258 ). All examined specimens have the apex of the aedeagal shaft defected to the same side.

SANC

Agricultural Research Council-Plant Protection Research Institute

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Genus

Elginus