Revision of the genus Pyrgotomyia Hendel (Diptera: Pyrgotidae) Author Korneyev, V. A. text African Invertebrates 2012 2012-06-30 53 1 187 187 http://www.bioone.org/doi/abs/10.5733/afin.053.0112 journal article 10.5733/afin.053.0112 2305-2562 7915321 Pyrgotomyia stuckenbergi sp. n. Figs 5, 9 , 15 , 19 , 38–40, 45, 53 Etymology: Named for Brian Stuckenberg, in recognition of his great contribution to the study of Afrotropical Diptera . Description: Female ( Fig. 53 ). Generally similar to P. callosa , differing as follows. Head : Length:height:width = 1.0:0.9:1.1; pale orange-yellow, except frons broadly brown, occiput with brown transverse mark in its dorsal portion and flagellomere 1 at apex brown. Frons subshining brown (only anterior margin, narrow median vitta, vertical plates and area corresponding to ocellar triangle yellow), 2.7× as long as wide in its narrowest part; with 1 short proclinate orbital seta and 8–12 setulae at each side 1–1.5× as long as orbital seta, forming 2 irregular transverse rows on its anterior portion. Parafacial and subocular sclerite entirely shining yellow, without brown areas. Face twice as high as wide; supraclypeal sclerite ( Fig. 5 ) 0.8× as high as wide. Eye 1.24× as high as long and 4.5× as high as gena. Ocellar triangle not defined, ocellar seta either broken off or lacking; postocellar seta present, 0.25× as long as medial vertical seta; lateral vertical seta absent.Antenna with flagellomere 1 apically blunt, brown in apical one-third. Thorax : Shining orange-yellow, mesonotum ( Fig. 9 ) with pair of reddish brown vittae on both presutural and postsutural part of scutum lateral to dorsocentral setae; anepisternum with wide brownish yellow vertical spot; postpronotal lobe pale brownish; katatergite, anatergite, mediotergite and postscutellum brown; setae and setulae black or brown. Postpronotal seta present on left side only. One strong presutural (scapular) dorsocentral and one postsutural dorsocentral seta slightly posterior to level of supra-alar seta; other dorsocentral setulae fine, at most half as long as setae. Wing ( Fig. 15 ): Length 5.4 mm . Distance between wing base and apex of vein R 1 2.8 mm . Abdomen : Abdominal sternites as in Fig.19 ; sternites 5 and 6 with anteromedial apodemes. Oviscape (Figs 38–40) moderately short and wide, 1.8 mm long, almost as long as thorax and preabdomen, conspicuously shorter than distance from wing base to vein R 1 apex and equal to distance from wing base to vein Sc apex; at apex about 0.8× as wide as at base; in profile curved dorsally, very slightly tapered to apex and without subapical callus.Aculeus (Fig.45) short triangular, not barbed subapically, 0.46 mm long and 1.1× as long as diameter of oviscape at apex. Spermathecae and ventral receptacle not found. Male . Unknown. Holotype : ♀ (dissected) NIGERIA : “ Ile-Ife [ 7.4667°N 4.5667°E ], Nigeria / 15Aug. 1970 / Col. T.J.Medler ” ( USNM ). Remarks: The variation in the body coloration and wing pattern can exist in larger series.