Fig. 3 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. 3. Pilosity of the katepisternum, ventro-lateral view. A. Scaeva pyrastri (Linnaeus, 1758), ♂ (JSA), Switzerland, with extensive pilosity. B. Psilota atra (Fallén, 1817), ♂ (JSA), the Netherlands, with extensive pilosity. C. Trichopsomyia pilosa sp. nov., paratype ♂ (JSA), with extensive pilosity. D. Trichopsomyia joratensis Goeldlin, 1997, ♀ (JSA), Belgium, with separated dorsal and ventral pile patch. Scale bars = 0.5 mm. a = ventral pile patch; b = antero-dorsal area; c = postero-medial margin; d = dorsal pile patch.