Dicraeus (Oedesiella) sardous, Nartshuk, 2009

Nartshuk, Emilia P., 2009, Three new species of Chloropidae (Diptera) from southern Sardinia *, Zootaxa 2318, pp. 545-551 : 548

publication ID	1175-5326
DOI	https://doi.org/10.5281/zenodo.5313467
persistent identifier	https://treatment.plazi.org/id/761687CA-FF98-A275-FF37-5424FBB586A9
treatment provided by	Felipe
scientific name	Dicraeus (Oedesiella) sardous
status	sp. nov.

Treatment

Dicraeus (Oedesiella) sardous View in CoL sp. nov.

( Figs 4–5)

Type material. Holotype ♂: Italia, Sardegna (Carbonia-Iglesias), Domusnovas, Valle Oridda , UTM 32 S 466973 4362228, 592 m, 2–16.V.2006, Malaise trap, G. Chessa leg. ( CNBFVR).

Paratype: 1 ♂: same data as holotype ( ZIN) .

Diagnosis. The species is included in subgenus Oedesiella Becker on the basis of the structure of the male genitalia: cerci long, narrow and wide apart, surstyli longer than epandrium. The new species looks in appearance like Dicraeus (Dicraeus) tibialis ( Macquart, 1835) in having only one hind notopleural seta and the pleura dusted on most of their surface, but differs by the darker body colour—especially the abdomen— wider genae and the structure of the male genitalia. The new species differs from other species of the subgenus Oedesiella by the dusted pleura and the structure of the male genitalia.

Description. Male. Frons, face and gena yellow; frons darkened. Ocellar triangle black, extending along ½ of length of frons. Gena wider than first flagellomere. Antenna yellow with first flagellomere darkened above; arista black, short pubescent. Occiput black. Setae and setulae of head black. Thorax black, scutum and pleura dusted. Notopleural setae 1+1. Scutellum semicircular. Apical setae longer than scutellum. Subapical setae inserted halfway between apical setae and base of scutellum. Wings transparent with brown veins. Correlation of costal sections 2:3:4 equals 34:11:8. Costal vein well visible up to the end of vein M. Veins R 4+5 and M parallel. Section of M between r-m and dm-cu slightly longer than dm-cu. Haltere white. Legs: middle and hind leg entirely black, fore femur black, fore tibia yellow, fore tarsi blackish. Abdomen brown. Male genitalia ( Figs 4–5): epandrium brown; cerci long and narrow, wide apart; surstylus longer than epandrium, with long setae on inner side.

Body length: 2 mm.

Female: unknown.

Etymology. The specific name is a Latin adjective referring to the type locality.