Chamaepsila hebraica
Friedberg & Shatalkin, 2008:
Within the hebraica group, this species is characterized by the following combination of characters: Vertical setae usually 2, sometimes 3; prescutellar acrostichal seta present; dorsocentral setae 4–6; and the shape of the male terminalia. The only other species of Chamaepsila that has prescutellar acrostichal seta is Ch. friedmani, which differs from this species by the shape of the phallus (the phallus of Ch. hebraica is weakly sclerotized, not serrated, and truncate, whereas the phallus of Ch. friedmani is strongly sclerotized, serrated, and pointed).
Distribution
Turkey
Friedberg & Shatalkin, 2008:
Male. Head (Figs. 1–2) yellowish-brown; frontal triangle dark brown anteriorly and black posteriorly; occiput dark brown; scape and pedicel yellowish-brown; 1st flagellomere black, short, about 1.3–1.5 times as long as wide; arista dark brown, distinctly thickened basally, with microscopic rays. Head structure greatly variable, as seen in the two figures depicting two extreme cases; frons often strongly protuberant: its length in profile from antenna to anterior margin of eye about 0.25–0.75 times as long as eye; width of frons between eyes almost equal to length from anterior margin to posterior ocellus; gena about 0.55–0.90 times as high as eye; parafacial very wide; face dark brown, narrow, strongly concave dorsally; eye round; palpus black.
Thorax black. Legs brown, femora and tarsi anteriorly dark brown. Wing transparent. Section of vein M between crossveins R-M and DM-Cu about 2.2 times as long as preceding section. Haltere yellowish-white.
Abdomen black. Male terminalia (Fig. 7): Epandrium (Figs. 11, 13) greatly variable in shape, occasionally with ventromesal tip produced into a projection (Figs. 11a, 13a, and Hennig’s 1941: fig. 17 and Tafelfig. 39); phallus (Fig. 16) relatively weakly sclerotized, truncate, not forked apically and with base wide trapezoidal and black margined; gonopod with wide lobe basally.
Chaetotaxy: 2–3 vt (3 in 10–20% of the specimens, more so in specimens from Jerusalem, including two of the type specimens), 1 poc, 2 orb; 1 npl, 1 psut spal (sa), 1 pal, 3-6 dc, 1 acr, 1 sc; anepimeron bare.
Body length 2.7–4.9 mm; wing length 2.9–4.1 mm.
Female. Similar to male. Legs usually lighter than in male, often almost entirely yellow.
Turkey, Istanbul (from images posted on Diptera.info)