Freidberg and Shatalkin, 2008: Within the hebraica group, this species is characterized by the following combination of characters: Vertical setae 2; prescutellar acrostichal seta lacking; dorsocentral setae usually 3; and the shape of the male terminalia, of which the forked phallus is unique.
Freidberg and Shatalkin, 2008:
Description Male. Head generally dark brown, including frontal triangle, occiput, and face; antenna black; 1st flagellomere short, about 1.3–1.5 times as long as wide; arista dark brown, thickened basally, with microscopic rays; frons slightly protuberant: its length in profile from antenna to anterior margin of eye about 0.22–0.33 times as long as eye; width of frons between eyes about equal to length (from anterior margin to posterior ocellus); gena very high, about 0.65–1.00 times as high as eye; parafacial very wide, narrowest width varying from about equal to height to about equal to length of 1st flagellomere; face narrow, deeply concave dorsally; eye round; palpus black.
Thorax black. Legs brown, femora and tarsi predominantly dark brown.
Wing hyaline. Section of vein M between crossveins R-M and DM-Cu about 2.00–2.63 times as long as preceding section. Haltere yellowish-white.
Abdomen black. Male terminalia (Fig. 8): Epandrium in lateral view (Fig. 12) widened and rounded ventrally; phallus (Fig. 17) with apex strongly sclerotized and slightly indented, appearing forked because of elongate weakly sclerotized area medio-subapically.
Chaetotaxy: 2 vt, 1 poc, 2 orb; 1 npl, 1 psut spal (sa), 1 pal, 3 (sometimes 4) dc, acr absent, 1 sc; anepimeron bare.
Body length 2.1–4.1 mm; wing length 2.8–3.8 mm.
Female. Similar to male.