A revision of Afrotropical Oligopogon Loew, 1847 (Diptera: Asilidae) with the description of eighteen new species Author Londt, Jason G. H. text African Invertebrates 2014 2014-09-30 55 2 269 269 journal article 2305-2562 8B957913-44EE-4E5B-8E1F-45A0BDA49534 Oligopogon platypteron sp. n. Figs 2C , 4 , 26–28 , 34 Etymology: From Greek platys (broad, wide, flat) and pteron n. (wing). In reference to the broadly expanded wings possessed by this species. Description: Head : Dark red-brown to black, red-gold and silver pruinose, extensively black setose. Antenna: Dark red-brown except brown-yellow distal end of postpedicel. Segmental ratios: 1:1.0: 2.8:2.6 (scape, pedicel, postpedicel, style). Scape and pedicel of similar development, black setose. Postpedicel circular in cross-section, tapering distally. Style of similar diameter to distal end of postpedicel, equipped with long black setae projecting from all surfaces. Face, frons and vertex red-gold pruinose (shows some variation, some specimens being silver-gold), mystax black, ocellar macrosetae black. Occiput silver pruinose except for two small circular apruinose spots midway between dorsal eye margin and cervical region ( See Fig. 2C ), black setose except for few white setae ventrally. Face to head width ratio in anterior view 1: 3.5 (face narrower than one eye). Proboscis dark red-brown, straight, pale yellowish setose. Palpi minute, 2-segmented. Thorax : Dark red-brown to black, extensively red-gold and silver pruinose, black and pale yellow setose. Mesonotum: Uniformly pruinose with no apruinose areas. 2 npl (other macrosetae weakly developed), general setae longish dark red-brown. Scutellum dark red-brown, largely silver pruinose except for large central area, fine dark red-brown setose (apical macrosetae poorly differentiated). Pleura fairly uniformly silver pruinose. Katatergal setae black. Legs: Coxae dark red-brown, silver pruinose, whitish setose. Trochanters dark red-brown, pale yellow-white setose. Femora dark red-brown with yellow-brown proximal ends, mixed dark red-brown and pale yellowish setose. Tibiae red-brown, paler proximally and at mid-length, mostly dark red-brown setose. Tarsi yellow-brown, dark red-brown to black setose. Wings ( Fig. 4 ): 3.8 × 1.5 mm ( holotype ). Wing broad due to ‘dilated’ cells. Membrane entirely microtrichose, extensively dark brown stained (broadly adjacent to veins – centres of cells usually unstained) especially distal end of cell r 1 (shows some variation in the degree of staining). Abdomen : Terga dark red-brown, largely apruinose except for silver pruinose anterolateral margins, macrosetae dark red-brown to black, smaller setae pale whitish. Sterna dark red-brown, entirely silver-gold pruinose, white setose. ♂ terminalia ( Figs 26–28 ) dark red-brown, ♀ terminalia dark red-brown. Holotype : KENYA : 1♂ ‘ Kenya Rt. A 109 / 50 km SE Nairobi [ Nairobi - 01°16'S 36°46'E ] / 30.iv.1991 / A. Freidberg / & Fini Kaplan’ ( NMSA ). Paratypes : GAMBIA : 3♂ 2♀ ‘ Keneba [ 13°20’N 16°01’W ], Gambia / 3.x.75’ ( OXUM ); 1♂ 2♀ ‘ Keneba , Gambia / 4.x.75’ ( OXUM ); 1♀ ‘ Keneba , Gambia / 7.x.75 Grass + low / bush by rice flds’ ( OXUM ); 1♂ ‘ Keneba , Gambia / 29.x.75 gnut fld [groundnut field]’ ( OXUM ) . KENYA : 4♂ 3♀ same data as holotype ( NMSA , BMNH 1♂ 1♀ ); 2♂ ‘ Kenya 6 km S Kapedo / Hot Waterfall 760m / 01°08’N : 36°06'E / 2–3.vi.1980 B. Lamoral / Malaise trap’ ( NMSA ); 3♀ ‘ KENYA , Eastern Prov. / base of Ukasi Hill / 613 m . 0.82103°S . / 38.54443°E [= ca . 0°49'S 38°32'E ]’, ‘ Malaise trap . Acacia / / Commiphora savanna / 21 NOV-5 DEC 2011 / R. Copeland’ ( NMKE ); 1♂ 3♀ ‘Kenya, Coast Prov. / Boni Forest area , 40m , / 1.86046°S , 40.71421°E [= ca . 1°51'S 40°43É ] / nr. Bodhei village’, ‘ Sweep net nr dam. / grass-/woodland. 13–15 / Jun 2013 . J. Bukhebi / & R. Copeland’ ( NMKE ); 1♂ 3♀ ‘Kenya, Coast Prov. / Boni Forest area , 37m , / 1.79554°S , 40.80894°E [= c . 1°47'S 40°48É ] / nr. Milimani village’, ‘ Sweep net nr dam. / grass-/woodland. 13–15 / Jun 2013 . J. Bukhebi / & R. Copeland’ ( NMKE ); 1♂ ‘ Kenya S.E. / Tsavo , Voi [ 03°23'S 38°34’S ] env. / 15.iv.2004 / M. Snižek legt.’; 1? ‘ Kenya : Tsavo Nat. [ ca . 02°57'S 37°54'E ] / Park. Kitani Lodge / 2600’ 24-xii-69 / M.E . Irwin & / E.S. Ross’ (CASC); 4♀ ‘ Kenya S.E. / Taveta [ 03°24'S 37°41'E ] env. / 16.iv.2004 / M. Snižek legt.’. NIGERIA : 1♀ ‘ Nigeria : Bama [ 11°31’N 13°41'E ], at / S.U.M. Mission , 370m / 26-ix-1966 / E.S. Ross & / K. Lorenzen’ ( CASC ) . SENEGAL : 1♀ ‘ Senegal / Ft de Fathala [Fathala Forest, near Bagadadji 12°48’N 15°03’W ] / 19.viii.76 / G. Couturier leg.’ ( MNHN ) . TANZANIA : 1♂ 1♀ ‘ Tanzania : Mkomazi / Game Reserve . / Ubani Plot. / 3°53.39'S 37°53.91'E’ , ‘ 23.iv.1996 . S. van Noort / Sweep. Grassland and / shrubs in open Acacia / / Commiphora bushveld’ ( SAMC A012187 ) ; 1♂ 1♀ ‘ Tanzania : Mkomazi / Game Reserve . North of / Kavateta Dam , near / Junction 9. / 3°54.06'S 38°03.26'E’ , ‘ 16.iv.1996 . S. van Noort / Sweep. mk21. Grasses / in open Acacia / / Commiphora bushveld’ ( SAMC A012217 ) ; 1♂ 4♀ ‘ Tanzania : Mkomazi / Game Reserve . / Pangaro Plot. / 3°53.61'S 37°46.65'E’ , ‘ 23.iv.1996 . S. van Noort / Sweep. mk30. open / disturbed Acacia / / Grewia bushveld’ ( SAMC A012186 ) . Note : The Gambian material is that listed by Londt (2010) merely as ‘ Oligopogon Species 1 ’. Distribution ( Table 1 ), phenology (Table 2) and biology: The species is widely distributed in equatorial Africa from West Africa ( Senegal and The Gambia ) to East Africa ( Kenya ) with a single record from Nigeria ( Fig. 34 ). Collected at many times in the year, the species probably flies throughout the year. This appears to be an open woodland savannah species.