Hyalistata Wheeler

Costa, Sávio Cunha, Pirani, Gabriela & Oliveira, Sarah Siqueira, 2022, On the uncommon genera Pseudiastata Coquillett and Hyalistata Wheeler (Diptera: Drosophilidae: Steganinae): new species and additional records from the Neotropical Region, Zootaxa 5116 (3), pp. 334-350 : 339

Genus Hyalistata Wheeler

Hyalistata Wheeler, 1960: 67 . Type species: Pseudiastata pictiventris Wheeler, 1960 (as a subgenus). Grimaldi, 1993: 2 (generic status).

Diagnosis (adapted from Grimaldi, 1993). General body color slightly dark to light yellow; arista micropubescent; wing hyaline; proclinate fronto-orbital seta slightly smaller than anterior reclinate fronto-orbital seta; one postpronotal seta and 6–7 postpronotal setulae; tergites with a varied pattern of spots ( Table 1 ), ventral lobe of epandrium with 12–15 fine setulae, all with large sockets; cercus with numerous short, fine setulae (no distinctively large setae). A pair of postgonites with apical comb-like row of 8–14 long, heavily sclerotized peg-prensisetae. Pregonites as rounded lobes, largely fused to hypandrium, with 4–12 fine setulae. Phallus indistinguishable or distiphallus large, bulbous, sometimes with a pair of small, lightly sclerotized flanges. Hypandrium with a narrow base, distinctively Y-shaped or asymmetrical, often bent (except for H. pallida ).