436 



THE ANIMAL PARASITES OF MAN 



woman suffering from cancer. 1 They were found at Shrewsbury. Hagen- 

 reports the larvae of this fly as occurring alive in the urethra of a patient. 

 F, V. T.] 



5. Homalomyia scalaris, Fabri. 



[This is not a synonym of the above, but a distinct species. 

 H. manicata, Meigen, is also distinct. F. V. T.] 



6. Musca domestica, L. 



and M. (Calliphora) vomitoria, L. and allied species ; the larvae have been 

 repeatedly found in the intestine and nose of man (Mankiewicz, &c.). -! 



FIG. 278. Larva of 

 A nthomyia Ca nicularis 

 (enlarged). 



FIG. 279. Larvae of 

 Musca vomitoria (en- 

 larged). 



FIG. 280. Larva of 

 Lucilia macellaria. (After 

 Conel.) 4/1. 



7. Lucilia macellaria (Fabricius), 1794. 



Syn. : Luc. hominovorax, Coq., 1858; Calliphora infesta, Phil., 1861 ; Calli- 

 phora anthropophaga, Co nil, 1878. 



An American fly which deposits its eggs on ulcers, in the 

 auditory canal or in the nostrils of persons who may be sleeping 

 in the open air. The larvae (screw worms), which are provided 



1 "First Report Economic Zoology," p. 55, Brit. Mm. (Nat. Hist.), Theobald. 

 - Hagen, Proc. Bost. Soc., N.H., xx., 107. 



3 Larva of a Musca, probably M. corvina, were passed in numbers per rectum 

 by a child in Liverpool with Homalomyia larvae. " Second Report Economic 

 Zoology," p. 16, 1963, Theobald. 



