Dicranota ( Eudicranota ) Alexander, 1934

Dicranota ( Eudicranota) Alexander, 1934 View in CoL

Dicranota ( Eudicranota) Alexander in Curran 1934: 46; Alexander 1950: 17; Ishida 1958: 40; Savchenko and Krivolutskaya 1976: 35; Savchenko 1983: 39; Savchenko 1989: 18–20. View in CoL

Dicranota ( Dicranotella) Alexander 1950: 18.

Type species.

Dicranota notabilis Alexander 1929 (original designation) (Nearctic).

Redescription.

Small to medium-sized pale yellow or whitish yellow Dicranota crane flies with body length 5.0– 8.7 mm and wing length 5.0– 7.5 mm.

Head. Antenna 12–13 - segmented, reaching to approx. or slightly beyond frontal margin of presutural scutum, if bent backwards. Antennal verticils long, at least as long as respective segments, usually longer.

Thorax. Presutural scutum could be uniformly coloured, without dark longitudinal stripes, sometimes just with indistinct medial stripe and sometimes with three indistinct stripes. Wing with at least narrow dark areas surrounding cross-veins and base of Rs, radial sector comparatively long, it is 4–5 × as long as vein m-cu. Cell r 2 with supernumerary cross-vein. Discal cell present, cell m 1 rather long, as long or longer as its stem.

Abdomen. Posterior margin of epandrium extended medially, lateral lobe long and narrow, slightly curved. Gonocoxite of male terminalia simple, or with distinct dorso-medial lobe. Interbase usually large, elongate. One or two pairs of gonostyli. Outer gonostylus or tip and outer margin of single gonostylus covered with small black spines. Ovipositor with long cercus and hypogynial valve, tip of cercus just slightly raised upwards, dorsal margin of hypogynial valve covered with long strong setae, tips of which reaching or nearly reaching apex of valve. Spermathecae three, small, drop-shaped.

Remarks.

The subgenus Dicranota ( Eudicranota) includes 16 species (one species is added in this publication, one species with two subspecies). Subgenus most diverse in the Eastern Palaearctic with nine species (one with two subspecies), four species recorded from the Nearctic, and three from the Oriental regions ( Oosterbroek 2025).