An overview of the Afrotropical Ommatiinae (Diptera: Asilidae) with a key to genera Author Scarbrough, A. G. text Zootaxa 2010 2010-07-19 2540 1 47 journal article 1175-5326 Ommatius latus n. sp. Figs. 67–72 Description , male. Brown. Body 10.3–11.3 mm ; wing 7.1–7.9 mm . Head : Face yellowish-gray or gray tomentose, mystax scattered, mostly white vestiture with 5–6 bristles medially, 4–13 brown bristles dorsally; FHWR 1.0:6.7–1.0:6.9. Proboscis and palpus pale yellow setose. Antenna, frons, and ocellar tubercle brown setose. Flagellum brown, scape brownish-yellow, scape and pedicel together slightly longer than flagellum; FWLR 1.0:1.8–2.0. Frons brownish tomentose. Occiput yellowish-gray or gray tomentose with pale yellow and white setae; 5–6 brown postocular bristles with apex of longest bristle about 1/3 distance toward ocellar tubercle. FIGURES 58–63. Ommatius coperitus n. sp. , male, wing and terminalia. 58. Right wing. 59–61. Lateral, dorsal, and ventral views; 62. Gonostylus; 63. Aedeagus, lateral view. Abbr.: cerc=cercus; epand=epandrium; goncx=gonocoxite; hypd=hypandrium; pvapod=posteroventral apodeme; r 4 , m 1 , m 3 =cells. Thorax : Pronotum brown or brownish-yellow tomentose, vestiture white or pale yellowish. Mesonotum brown with yellowish or grayish tomentum; postalar callus yellowish laterally; wide brown stripe and 2 lateral spots brown tomentose, striped divided medially and grooves between brown spots brownish-gray; setae brown medially, yellowish laterally; 4 dorsocentral and 5–6 lateral bristles blackish. Scutellum brownishyellow or grayish tomentose, setae scattered, usually whitish, sometimes with sparse brown setae; 2 black marginal bristles. Pleuron yellowish-gray or gray tomentose, vestiture yellowish or white, anepimeral bristle brown; anepisternum with long whitish vestiture posteriorly; katatergite, metepimeron, and metacoxa usually yellowish. Wing ( Fig. 67 ): Hyaline with weak ripples anteriorly; microtrichia present from apex to r-m crossvein and narrowly along posterior margin to anal cell. Cell r 4 sigmoid, base just beyond apex of cell d; R 4 joins costa at wing apex. Crossvein r-m at middle of cell d, about as long as CuA 1 +M 3 . Cell m 1 wide beyond narrow base; vein M 1 strongly arched basally; m 1 WR 1.0:2.4:1.8–1.0:2.8:2.0. Legs: Coxae mostly yellow; narrow base of pro-, meso- anteriorly, and metathoracic coxa apically brownish; pro- and mesothoracic trochanters yellow ventrally, narrow apical margins black; metathoracic trochanter brownish. pro- and mesothoracic femora yellow, brown anteriorly and dorsally, yellow on ventral 1/3 or 1/2 anteriorly; apex of mesothoracic femur brown posteriorly; metathoracic femur mostly brown, narrow base or basal 1/2 yellow ventrally. Prothoracic femur posteriorly and ventrally with abundant, long, yellowish wavy setae; basal 1/3 of prothoracic femur posteriorly with 2–3 whitish or brownish bristles. Mesothoracic femur anteriorly with sparse, long, wavy setae and 3 long bristles; anteroventral and posteroventral rows with only very long, thin setae, slightly wavy apically; preapical posterodorsal bristle brown. Metathoracic femur with mostly yellowish or brown setae ventrally; basal 3–5 posteroventral setae longer, thicker than anteroventral setae; MFWLR 1.0:6.5–1.0:6.7. Tibiae mostly yellow, narrow apices of meso- and metathoracic tibiae brown; prothoracic tibia fringed laterally with numerous long yellowish setae, longest wavy apically, and 3–4 long whitish bristles; mesothoracic tibia with scattered long setae and whitish bristles; metathoracic tibia with only brown bristles. Tarsi mostly brown with brown bristles; basal tarsomeres yellow, narrow apices brown; basal tarsomere of prothoracic tarsus fringed with long setae and yellowish bristles laterally. Abdomen : Brown; apical margins of segments 1–5 or 6 yellowish; tomentum grayish to brownish-gray tomentose; tergites 7–8 thinly tomentose, surface subshiny; tergite 2 medially and tergites 3–8 brown setose, tergites 1–7 laterally and sternites 1–7 entirely pale yellow setose, sternite 8 with only brown vestiture; apical margin of tergites with thin bristles. Terminalia ( Figs. 68–72 ): Dark brown, slightly longer than and as wide as segments 7–8. Epandrium wide and slightly pointed apically, somewhat angular in dorsal view. Hypandrium angular apically; setae short, stout. Female unknown. Types . MALAWI : Viphya Mtns , Chikangawa [ 11 o 52’S 33 o 48’E ] 1133 Dd / 5–8.xii.1980 1700 m / Stuckenberg & Londt / Forest edge in grass / ( holotype ♂ , NMSA ). Paratype , MALAWI : Ntchisi Forest Reserve [ 13 o 18’S 34 o 03’E ] 1334 Ac 1500 m / Londt & Stuckenberg / 3–4.xii.1980 Montane / forest & woodland ( 1 ♂ , NMSA ) . Etymology . Latin latus for wide referring to the diameter of the apex of epandrium in dorsal view. Gender feminine. Distribution. Collected in forest edges in grass during December in montane Malawi . Remarks . Ommatius latus , similar to O. prolixus and O. coperitus in the long fringed setae of the legs and sparse mystax, but is distinguished by the shapes of the epandrium and gonostylus ( Figs. 67–72 ) and the brown metathoracic femur with only a narrow yellow base. The hind femur of the other two congeners is largely yellow.