Fig. 5 in The first species of Trichopsomyia Williston, 1888 (Diptera: Syrphidae) described from the Oriental region, with a discussion on the character states of the pilosity of the katepisternum

Fig. 5. Pilosity of the katepisternum, ventro-lateral view. A. Ferdinandea cuprea (Scopoli, 1763), ♂ (JSA), the Netherlands, with medially connected dorsal and ventral pile patches. B. Neoascia annexa (Müller, 1776), ♀ (JSA), Germany, with ventral pile patch only. C. Brachyopa testacea (Fallén, 1817), ♂ (JSA), Belgium, with dorsal pile patch only. D. Hammerschmidtia ferruginea (Fallén, 1817), ♂ (JSA), Sweden, with dorsal and ventral pile patches, ventrally with additional long black setae. Scale bars = 0.5 mm. a = ventral pile patch; c = postero-medial margin; d = dorsal pile patch.