Dahliphora sigmoides Schmitz, 1923

Liu, Guang-Chun, 2017, The little-known genus Dahliphora Schmitz, 1923 of China (Diptera, Phoridae), ZooKeys 714, pp. 141-147 : 143-144

Dahliphora sigmoides Schmitz, 1923 Figs 8, 11

Dahliphora sigmoides Schmitz, 1923: 188.

Diagnosis.

Male. Body brown, 0.68 mm long. Frons with two pre-ocellar bristles, two ocellar bristles and two convergent postero-laterial bristles. Postpedicel brown and drawn out a long, apical pseudo-arista. Palpus yellow. Thorax brown. Notopleura with two bristles. Scutellum with four subequal bristles. Legs yellow. Hind metatarsus (Fig. 8) with four transverse hair combs, the basal hair comb has only three hairs in a row. Wing (Fig. 11) 0.55 mm long. Membrane nearly hyaline, thin veins whitish yellow. Costal index 0.49. Costal ratio 1:1. Costa with 16 dorsal cilia and each of them approx. 0.03 mm long. Vein sc free. No hair at base of Rs. Vein M2 strongly curved near base, distal half nearly straight. Vein CuA1 slightly S-form. Vein A2 almost inconspicuous. Abdominal tergites brown, wider than long, with sparse short hairs along the rear margin. Venter yellow, with tiny sparse microtrichia. Hypopygium yellowish brown, asymmetrical. Epandrium without bristles. Aedeagus complex drawn out a long, curved process. Anal tube short.

Material examined.

1 ♂, China, Guangxi, Shiwandashan (21°54′40.01″N, 107°54′51.18″E; 684 m), 18 –Aug– 2011, Jian-Feng Wang.

Remarks.

This species is similar to D. zaitzevi (described from Russian Far East, see below). It can be distinguished from the latter in having two bristles on notopleura, four transverse hair combs on hind metatarsus, 16 dorsal costal cilia and by smaller size.