June, I9I7-] ToWNSEND: HeaD AND ThROAT BoTS. 103 



dark, evidently blackish or brownish, that of the tip of abdomen being 

 rufous. Even were the discal abdominal pile of Clark's specimen 

 more or less rufous it would not militate against the reference of the 

 New York flies to phohifer, for it appears certain that the color of 

 the pile in this genus varies at times in the same species from pale 

 yellowish and rufous to deep black. The absence of the mesoscutal 

 band of black pile is unique. Above all, added to the other points 

 of agreement, I consider that the peculiar area of wing infuscation, 

 which is also unique, clinches the identity of ahdominalis with 

 phohifer. 



C. pJwhifer is to be distinguished from the European trompe, 

 which it almost exactly duplicates in appearance, by the narrower 

 front of male, loss of the mesoscutal band of black pile, restriction 

 of light pile of femora to basal region, shortness of abdominal pile, 

 and infuscate wing-area. Its distinction from pratti has already 

 been pointed out. 



1914. Seven third-stage larv?e taken by IMr. J. J. Rauers, March 

 2j, from "brain cavity" (probably frontal sinuses) of a deer on the 

 game preserve of St. Catherine Island, Georgia, form No. 17321 of 

 B. A. I. Parasite Collection and are pratti. I am indebted to Dr. B. 

 H. Ransom, of the Bureau of Animal Industry, for the opportunity 

 of examining this material. This locality is on the coast just south 

 of Savannah. It seems, therefore, that the range of pratti extends 

 from the Pacific coast and southwestern regions eastward through 

 the Gulf coast region to the south Atlantic coast of the United States. 



191 5. Two dozen or more third-stage larvse, taken by Mr. J. S. 

 Ligon, in February, in the larynx of a male Odocoileus hemionus 

 Raf., at Aragon, Socorro County, New Mexico, are pratti. I am 

 indebted to Mr. E. W. Nelson, chief of the Bureau of Biological Sur- 

 vey, for the opportunity of examining this material. The larynx was 

 excised, with the bots in situ, and sent in alcohol. About a dozen 

 of the bots were still massed within it, attached more or less firmly to 

 the mucous lining of its walls. The locality is in extreme western 

 Socorro County, on the Rio Tularosa near Old Fort Tularosa, and 

 is mapped by Bailey as Upper Sonoran. 



The above records cover all the references and material available 

 to me on Cephenemyia of American origin. The Patagonian species 

 described by Guerin as grandis is not this genus, but either Rogen- 



