110 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



of fifth segment very large and prominent, resembling a female theca. 

 Genitalia dark reddish black. 



Type: Holotype, male, USNM 64476, Uen Chuan, Szechwan, Aug. 

 7-14, 1924, D. C. Graham. 



This species belongs to the C. scutellatus group in having the 

 scutellum entirely yellow, and, as in scutellatus, the first abdominal 

 segment has a narrow yellow distal margin. It differs conspicuously 

 from scutellatus by the wing pattern, in addition to the unique fifth 

 sternite. 



Conops nigrifrons Krbber 



Conops nigrifrons Krober, Arch. Naturg., vol. 81, Abt. A, Heft. 11, p. 55, 1915. 



Otherwise known only from the type male from Japan. This 

 specimen agrees very well with Krober's description, except that the 

 cheeks are entirely yellow. 



Material examined: Siberia: Okeanskaya, August 1923, Cockerell, 

 1 male, USNM. 



Conops quadrifasciatus DeGeer 



Conops quadrifasciatus DeGeer, Memoires pour servir a l'histoire des insectes, 

 vol. 6, p. 104, 1776. 



This widely distributed European species has not been previously 

 recorded east of Asia Minor. This specimen has some blackish on 

 the femora, a character occasionally possessed by European indi- 

 viduals. 



Material Examined: Siberia: Smolenschina, Aug. 26, 1927, Cock- 

 erell, 1 male, USNM. 



Subgenus Asiconops Chen 



Asiconops Chen, Notes d'entomologie chinoise, vol. 6, p. 170, 1939. 



This subgenus is characterized by having transverse grooves on 

 the front, anterior to the vertex. In a few species the transverse 

 grooves of the front are relatively indistinct. In addition I have 

 found in the female a tooth-shaped process extending from the 

 middle of the posterior margin of the sixth abdominal segment. Most 

 of the species have a frontofacial mark. 



This subgenus dominates the Indo-Malayan representatives of the 

 genus Conops. 



Type: Conops aureomaculatus Krober. 



Conops (Asiconops) kanoi, new species 



Male: Length 15 mm. Front brownish yellow, with longitudinal 

 grooves radiating from the antennal prominence and a few transverse 

 grooves in the middle. Vertex and face yellow; most of face and 

 posterior orbit gold pollinose. Lower third of facial keel dark brown. 

 Occiput black. Antenna dark brown. First segment four times as 



