DERMATOBIA 



441 



(Wratsch, 1895. Nos. 48 and 57), that bore fine canals in the epidermis of 

 human beings are the young larvae of a Gastrophilus. 1 



1 8. Dermatobia cyaniventris (Macquart), 1840. 



Syn. : Cuterebra noxialis, Goudot, 1845 ; Dermatobia noxialis, Brauer, 

 1860. 



The Dermatobia flies in tropical America take the place of our species of 

 Hypoderma, and their larvae live in the skin of mammals, as well as of 

 human beings. In Mexico they are called " Moyoquil," in Guiana "Macaque," 

 in Venezuela " Torcel," and in Brazil " Berne." They were formerly, 

 at least as regards their occurrence on man, considered to be the larvae 

 of various species, till R. Blanchard was able to demonstrate the fact 

 that the different forms are only consecutive stages of the same species 

 (Dermatobia cyaniventris}. 



Sangalli (1893) also identified this species in Italians returned 

 from Brazil. 



FIG. 286. Dermatobia noxialis, Goudot. 



19. Dermatobia noxialis, Goudot. 



[Dermatobia cyaniventris, Macquart, 1843, is not tne same as noxialis (vide 

 Brauer, p. 266). It is known by various other names, as Nuche or Gusano in 

 New Grenada ; the Ura in Brazil, and the Macaw fly in Cayenne. It occurs 

 from Mexico to Brazil. According to Goudot the fly is found in great numbers 

 on the borders of large woods and lands covered with underwood. 



The cattle worm, or founzaia ngombe, is the name given to a larva which 



1 " Ueb einie seft biem Mensch vork. Paras." (Stzgzb. d. St. Petersb. naturf. Ges 

 1897, p. 185 ; Wratsch, 1896, No. 3 ; 1897, No. 7 ; ,'898, No. 2). Compare also Arch. 

 /. Dermat. u. Syph., xli., p. 367. 



