Afrotropical Asilidae (Diptera) 25. A key to the genera of the subfamily Stenopogoninae with new synonymy and descriptions of six new genera Author Londt, Jason G. H. text ANNALS OF THE NATAL MUSEUM 1994 1994-10-31 35 71 96 journal article http://doi.org/10.5281/zenodo.8360701 8360701 Agrostomyia dimorpha Sp. n. Figs 1-6 Supplementary descriptive data: Head: black, gold-silver pruinose; antenna black, scape with long, yellow setae ventrally, pedicel with few pale yellow setae dorsally only; mystax and other cephalic setae yellow (paler in 9); palp blackish with terminal pit-like opening; proboscis black, straight, ca. same length as antenna. Thorax: blackish, gold-silver pruinose; mesonotal macrosetae yellow (ca. 5 npl, 3 spal, 2 pal); ktg setae yellow; scutellum with yellow marginal macrosetae and minor setae which extend onto disc. Legs: femora orange; tibiae with proximal 縠 orange, distal l and entire tarsus dark red-brown to black. Abdomen: ♂ - TIS 1 and posterior j of T2 blackish, other segments and terminalia orange; setae short, yellow. Genitalia as in Figs 4-6. ♀ - black, hind margins of T2-5 with slight traces of orange. Variation: some Namibian ♀♀ have upper parts of femora somewhat dark red-brown (especially hindlegs) while cJ may have a somewhat duller orange-brown abdominal coloration. Material ( NMSA - Type 1096): SOUTH AFRICA : Cape Province : 5 ♂ (HT & PT) 5 ♀ ( PT ): ' Sth Africa Cape Prov / 30 Ian E. Groblershoop / 2822CD 19.iii.1982 / J. Londt & L. Schoeman / Roadside vegetation' ( BMNH - 1 ♂ 1 ♀ PT); 1 ♂ ( PT ), 35 km W of Kimberley , 2824CB, 17.iii. 1982 , Londt & Schoeman ; 1 ♀ ( PT ), 14 km S of Hotazel , 27° 19'S : 22°54'E , 14 7.iii. 1991 , Londt & Whittington ; 1 ♀ ( PT ), 20 Km N of Hotazel, 27°07'S : 22°59'E , 14.iii. 1991 , Whittington & Londt ; I ♀ ( PT ), 26 km E of Upington , 28°23'S : 21 °29'E , 16.iii. 1991 , Whittington & Londt ; 2 ♂ 2♀ ( PT ), 18 Km NNW of Marydale, 29° 15'S : 22°04'E , 18.iii. 1991 , Whittington & Londt . NAMIBIA : 2 ♂ 2 9 (PT), 28 km W Outjo , 20 12'S : 15 53'E , 24.iii. 1984 , Londt & Stuckenberg ; 4 ♂ 2 ♀ ( PT ), Gross Barmen Resort , 22°07'S : 16°42'E , 29.iii. 1984 , Londt & Stuckenberg ; 2 ♂ 1 ♀ ( PT ): 26 km N Windhoek , 22°20'S : 17°04'E , 29.iii. 1984 , Londt & Stuckenberg ; 4 ♂ 3 ♀ ( PT ), Okahandja , 21°59'S : 16°37'E , 28.iii. 1984 , Londt & Stuckenberg ; 2 ♂ 2♀ ( PT ), 28 km E Khorixas , 20016'S:15° 12'E, 24.iii. 1984 , Londt & Stuckenberg ; I ♀ ( PT ), 54 Ian S Khorixas, 20043'S: 14°49'E, 26.iii. 1984 , Londt & Stuckenberg ; 1 ♂ ( PT ), 13 km S of Windhoek , 2217CA, 18.iv. 1983 , Stuckenberg & Londt ; 6 ♂ 2 ♀ ( PT ), Otavi [ 19°39'S : 17°20'E ], 18.iii. 1988 , Manning; 1 ♂ ( PT ), Windhoek [ 22°35'S : 17°05'E ] Distr ., Farm Portsmut 33, 14-24.iv. 1972, Strydom & Jones ; 2 ♂ ( PT ), Hardap dam [2417BD], Mariental Distr ., 10-14.iv.1972 , Strydom & Jones ; I ♂ I ♀ ( PT ), Otjimbumbe [?], Kunene R. , iii. 1923 , Mus. Exped . ( SAMC ); 7♂ 1 ♀ ( PT ), Kaross [ River - 19°30'S : 14°20'E ], ii. 1925 , Mus. Exped . ( SAMC ); 1 ♂ ( PT ), Erikson's Drift [?], Kunene R. , iii. 1923 , Mus. Exped . ( SAMC ). Etymology : Gr. di - two + morphe - form (refers to the sexual dimorphism displayed by this species) .