CONOPID FLIES CAMRAS 123 



Material examined: Hopeh: Chao Yang, July 13, 1921, A. P. Jacot, 

 1 female, USNM. 



PhysocepJuila theca, new species 



Female: Length 10 mm. Front, face, and cheeks yellow; blackish 

 on apex of vertex, at base of antenna, and in the middle of facial 

 grooves. Vertex translucent dark yellow. Occiput black. Posterior 

 orbit white pollinose above, yellow pollinose below. Antenna dark 

 reddish brown, blackish above. First segment three times as long as 

 wide. Second segment three times length of first. Third segment 

 nearly one and one half times length of first. Process of proximal 

 segment of arista moderate, nearly as long as apical segment of arista. 

 Proboscis blackish, reddish in the middle, nearly two times length 

 of head. 



Thorax black. Distinct yellow pollinose pleural stripe. Yellow 

 pollinose areas present adjacent to humeri, on metathorax and on 

 postnotum. Humeri rufous, scutellum entirely black. Coxae dark 

 reddish black, partially yellow pollinose. Legs bright rufous, darker 

 on apex of posterior tibiae and on tarsi. Claws blackish, pulvilli 

 yellow. Wings dark brownish from first to fifth vein. Costal and 

 subcostal cells yellowish. Apical half of first basal cell hyaline. 

 Apical half of first posterior cell abruptly hyaline. Apical two thirds 

 of discal cell hyaline except for posterior margin. Calypters yellow. 

 Halteres rufous, dark brownish at base. 



Abdomen mainly black, rufous at junction of second and third 

 segments. Dark reddish at base of seventh segment and on the 

 theca. Gold pollinose at distal margin of first to fifth segments and 

 diffusely on parts of sixth and seventh segments. Theca very large, 

 twice as long as wide. Posterior black serrate area slightly longer 

 than wide, rufous proximally. 



Male: 9 mm. Similar to the female, but front entirely black. 

 Abdomen grease stained, rufous on most of second and third segments 

 and at apical half of sixth segment. 



Types: Holotype, female, USNM 64484, Chao Yang, Hopeh, July 

 9, 1921, A. P. Jacot. Allotype, Chao Yang, Hopeh, July 20, 1921, 

 A. P. Jacot, author's collection ex USNM. 



This species is very close to P. chrysorrhoea differing by the very 

 large theca. There are no good characters for distinguishing the 

 male. P. vaginalis of Southern Europe, differs by having the theca 

 light reddish brown, and the wing pattern extending only to the 

 third vein. 



