104 MISC. PUBLICATION 631, U. S. DEPT. OF AGRICULTURE 



gusano macaco, gusano de monte, colmoyote, cormollote, nuche, ver 

 moyocuil, gusano de zancudo, hura, ura, torcel, and berne. 



Literature. — The literature is voluminous. For general accounts 

 see Townsend {163, pt. 2, pp. 228-233; pt. 12, pp. 165-169), Sambon 

 (ISO) ; Newstead and Potts (94), and Vivas-Berthier (155) ; others 

 are available. For a valuable historical sketch see Blanchard (20) ; 

 for a case history in experimental self -infestation see Dunn (35) ; for 

 the importance in human and animal parasitism see Dunn (36) . 



The Genus CEPHENEMYIA Latreille 



Flies of this genus live parasitically on the reindeer and deer, the 

 maggots infesting various regions of the head and throat. The char- 



Figube 52. — Head of adult female, front 

 view : A, Cephenemyia trompe; B, 

 Hypoderma bovis. 





Figure 53. — Cephenemyia au- 

 ribarbis, mature larva : A, 

 Dorsal view ; B, ventral 

 view. (After Cameron (23, 



v.m). 



acters given in the key will serve to distinguish larvae (fig. 53) and 

 adults from other Cuterebridae. The adults bear a superficial resem- 

 blance to some Hypodermatidae, but may readily be distinguished by 

 the narrow epistoma, that of the Hypodermatidae being broad and 

 shieldlike (fig. 52). 



Pathogenesis. — It is probable that species of Cephenemyia never 

 attack man. A case is recorded by Thompson (1W) in which 40 

 larvae, identified in the then United States Division of Entomology 

 as Cephenemyia sp., were removed from the nose of a man near San 

 Bernardino, Calif., in 1889. In the light of present knowledge it 

 seems likely that the larvae were misidentified and that they were 

 actually Oestrus. 



