E. E. AUSTEN — A NEW SPECIES OF AFEICAN DIPTERA. 81 



Although nothing is yet known as to the H£e-history of this species, it is 

 reasonable to suppose that, like the other members of its genus, Co7%lylohia 

 prccgrandis is in its larval stage a subcutaneous parasite in mammals. 

 Whether or not it resembles C, antliropopliaga, Griinb., and €. rodliahiiy 

 Gedoelst, in regularly attacking man, it may be pointed out that the larva 

 of so large a fly must be of very considerable size, and is consequently 

 little likely to be permitted to remain in the human integument long- 

 enough to attain its maximum development, so as to enable the perfect insect 

 to be bred. 



