Thrixion Brauer and Bergenstamm, 1889

Genus Thrixion Brauer and Bergenstamm, 1889 View in CoL

Diagnosis: Frontal vitta present; arista thickened at most on basal 1/2; second aristomere at most as long as wide; palp present; posteroventral half of head with predominantly white setulae; upper part of head bare behind the postocular row; prosternum bare; two intra-alar setae present, separated from each other by a wide distance; anepimeral seta present; vein M not reaching wing margin; R 4+5 setose at least halfway to crossvein r-m; crossvein dm-cu absent; abdominal syntergite 1+2 with 1 pair of strong median marginal setae, its middorsal depression extending back to hind margin of that segment.

Remark: This genus is newly recorded from Iran.