CONOPID FLIES — CAMRAS 121 



variable amount of hyaline at the base of the wing, but not as much 

 as the Japanese specimen. This variation is seen in the closely 

 related Archiconops morosus, and it seems best at present to unite 

 erythrocephalus and niponensis. Conops nigricans Matsumura also 

 appears to be this species. 



Material examined: Siam: "7-6-1928," Hugh Smith collection, 

 1 male, USNM. Chekiang: Hangchow, July 19, 1925, T. P. Chao, 

 1 female, author's collection ex USNM; Hangchow, July 11, 1927, 

 C. Y. Wong, 1 female, USNM. Kiangsu: Penniu, July 17, 1926, 

 W. Shien, 1 male, USNM. Japan: Mitsukuri, 1 male, USNM, 

 determined niponensis by Coquillett. 



Genus Physocephala Schiner 



Physocephala Schiner, Wiener Ent. Monatschr., vol. 5, p. 137, 1861. 

 Physocephala rufifrons, new species 



Female: Length 17 mm. Front and vertex dark rufous, blackish 

 above antenna extending on each side in a line to upper part of face. 

 Face and lateral margin of front yellow. Upper half of keel black. 

 Cheeks brown. Occiput black, lower half of posterior orbit rufous 

 Antenna predominantly dark reddish brown, brighter vcntrally and 

 medially. First segment two times as long as wide. Second segment 

 over 2% times length of first. Third segment two times length of 

 first. Arista black. Process of second segment of arista very long, 

 as long as distal segment. Proboscis black, nearly two times length 

 of head. 



Thorax mainly black, rufous on humeri and scutellum, reddish on 

 sides of thorax and parts of pleura. Coxae black. Legs rufous. 

 Posterior femur blackish, rufous at apex and base. Apical tarsi and 

 tips of claws blackish. Pulvilli very dark. Wing dark brownish 

 from costa to fifth vein. Costal cell slightly paler. Hyaline areas 

 in submarginal cell, first posterior cell, and apical half of discal cell. 

 Calypters dark brown. Halteres dark brown, yellowish on pedicel. 



Abdomen reddish. First segment black except for sides. Second 

 segment with a pair of large black marks on basal half. Dorsum 

 of third segment mainly black. Basal half of fourth and fifth seg- 

 ments black. Paired marks at base of sixth and seventh segments 

 black. Genitalia shiny black. Theca folded under abdomen. 



Type: Holotype, female, USNM 64483, Ningyuenfu, Szechwan, 

 6,000-10,800 ft., July 24-26, 1928, D. C. Graham." 



This species belongs to the P. vittata group, but has the front rufous. 



