122 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



Physocephala ammophiliformis KrSber 



Physocephala ammophiliformis Krober, Arch. Naturg., vol. 81, Abt. A, Heft 

 4, p. 122, 1915. 



There is a variable amount of yellow on the lower lateral part of 

 the front, so that the specimen from Mount Omei approaches having 

 a black "T" pattern on the front. Another specimen is more reddish, 

 with some black at the base of the hind femur, but no black ring. 



Compared with a male and female of P. gigas from Java, which 

 Krober thinks may be synonymous, gigas differs by having barely 

 a trace of reddish brown on the second abdominal segment. Also 

 the legs are darker, but a black ring is distinguishable near the base 

 of the hind femur, and the pedicle of the abdomen is more slender 

 in gigas. 



Material examined: Szechwan: Shin Kai Si Mount Omei, 3-5,000 

 ft., July-August 1923, D. C. Graham, 1 male, USNM; Kuanshien, 

 3,000 ft., Apr. 5-May 8, 1930, D. C. Graham, 2 males, USNM and 

 author's collection. 



Physocephala nigra (DeGeer) 



Conops nigra DeGeer, Memoires pour servir a l'histoire des insectes, vol. 6, p. 

 105, 1776. 



The abdomen of the specimen examined is grease stained so that 

 the pollinose bands are not distinct. This species has not previously 

 been recorded east of Turkestan. 



Material examined: Manchuria: Tsingtao, July 1938, Weymarn, 

 D. G. Hall coUection, 1 female, USNM. 



Physocephala obscura Krober 



Physocephala obscura Krober, Arch. Naturg., vol. 80, Abt. A, Heft 10, p. 53, 1914. 



The first four specimens listed agree with the original description 

 but are smaller, 12-15 mm. The cotype agrees with the description 

 of the female, but may represent another species. It is more robust, 

 yellow pollinose, and more extensively rufous; and most of the front 

 is reddish, not forming a midline. 



Material examined: Siberia: Kongaus, August 1923, Cockerell, 2 

 males, USNM and author's collection; Okeanskaya, August 1923, 

 Cockerell, 2 males, USNM and author's collection; "Wladiwastock," 

 1 male, cotype, USNM. 



Physocephala chrysorrhoea (Meigen) 



Conops chrysorrhoea Meigen, Systematische Beschreibung der bekannten Euro- 

 paischen zweifliigeligen Insekten, vol. 4, p. 128, 1824. 



The specimen examined belongs to the variety P. truncata; but 

 the related new species described below, from the same locality, has 

 the wing of the typical form. 



