O. Merkl szerk.: Folia Entomologica Hungarica 66. (Budapest, 2005)

Fore femur dark (dark grey) with thin microtomentum, legs otherwise yellow, incl. coxae and male hind basitarsus. Hind basitarsus 0.31 mm long, 0.10 mm thick (holotype), 0.37 mm long and 0.06 mm thick (paratype female). Dorsal surface of preabdominal terga concolorous with lateral margins (dark grey), though terga darker medially than laterally. Setae both on abdominal tergites and sternites rather sparse. Longest tergal marginal setae 0. mm long. Epandrium (Fig. 22) medium large, much higher than long. Surstylus (Figs 22) long and curved, with long setae. Right lamella of distiphallus (Fig. 23) with a large and sharp medial process, apical part curved. Left lamella strongly curved, basal part bulbous, ventrally with dense minute black thorns. Phallapodemc moderately long. Ejaculatory apodeme (Fig. 21) rather similar, though longer than that of T. marginella (Fig. 17). Apical thorn of gonopod somewhat longer but much thicker than that of T. marginella (Fig 24, cf. Fig. 20). Figs 17-24. Trixoscelis spp., male genitalia. 17-20: T. marginella (MEIGEN), 17 = ejaculatory apodeme, lateral view, 18 = epandrium and surstylus lateral view, 19 = phallus, ventral view, 20 = apical thorn of gonopod, lateral view (two specimens). 21-24: T. margo sp. n., 21 = ejaculatory apodeme, lateral view, 22 = epandrium and surstylus lateral view, 23 = phallus, ventral view, 24 = apical thorn of gonopod, lateral view. Scale bar: 0.2 mm for Figs 17, 19, 21, 23, 0.4 mm for Figs 18, 22,0.1 mm for Figs 20, 24