Was BOLD BIN: BOLD:AAC0903, but currently being re-assessed.
Adult:The adults of the original European material were called C. meigeni by Thienemann and Strenzke (1951), since the cytology of Keyl's original description comes from the same material. Keyl states only that the coloration and hypopygium are similar to C. pseudothummi Str. It is not clear why Keyl considered that it was not C. meigeni. Subsequently the morphology of Palearctic specimens was described by Orel et al. (2015).
The following information comes from that work.Males:
Wing length 2.7-3.0 mm. AR 2.81-3.06. VR 1.05. BR 2.78-3.89.
Antenna dark brown, ground color of thorax and scutellum yellowish; mesonotal stripes and postnotum dark brown, abdomen and legs brown or dark brown.
Head with frontal tubercles 24-34 µm long, 10-17 µm wide. 25-28 verticals, 35-38 clypeal setae. Proportions of palp segments 2-5 (µm): 64 : 228 : 200 : 280.
Thoracic setae: acrostichals 15-21; dorsocentrals 18-29; prealars 4-6; supraalars 1; scutellars 27-42.
Leg proportions (µm):