Fig. 4 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. 4. Pilosity of the katepisternum, ventro-lateral view. A. Callicera macquarti Rondani, 1843, ♀ (JSA), Cyprus, with medially connected dorsal pile patch with entire pilose ventral margin. B. Eriozona syrphoides (Fallén, 1817), ♂ (JSA), Belgium, with posteriorly connected dorsal pile patch with entire pilose ventral margin. C. Pocota personata (Harris, 1780), ♀ (JSA), Sweden, with three pile patches: dorsal, ventral and antero-medial. D. Temnostoma vespiformis (Linnaeus, 1758), ♂ (JSA), the Netherlands, with posteriorly connected dorsal and ventral pile patches. Scale bars = 0.5 mm. a = ventral pile patch; b = antero-dorsal area; c = postero-medial margin; d = dorsal pile patch; e = antero-medial pile patch.