Dipterous Larva 



Larva of Piophila casei. Caudal aspect of larva. 

 Posterior stigmata. 



In one of these cases upwards of 1200 larvae and several perfect 

 insects were said to have been passed per anum. French (1905) 



reports the case of a man 

 who for a considerable period 

 voided adult living beetles 

 of the species Nitidula 

 bipustulata. Most of the 

 other cases on record relate 

 to the larvae of Dermestidce 

 (larder beetles et a/.) or 

 Tenebrionida (meal infesting species) . Infestation probably occurs 

 through eating raw or imperfectly cooked foods containing eggs or 

 minute larvae of these insects. Hf 



Brumpt cites a curious case of accidental parasitism by a coleopter- 

 ous larva belonging to the genus Necrobia. This larva was extracted 

 from a small tumor, several millimeters long, on the surface of the 

 conjunctiva of the eye. The larvae of this genus ordinarily live in 

 decomposing flesh and cadavers. 



DIPTEROUS LARVAE 



Myasis By this term (spelled also myiasis, and myiosis), is 

 meant parasitism by dipterous larvae. Such parasitism may be 

 normal, as in the cases already described under the heading parasitic 

 Diptera, or it may be facultative, due to free-living larvae being 

 accidentally introduced 

 into wounds or the body- 

 cavities of man. Of this 

 latter type, there is a 

 multitude of cases on 

 record, relating to com- 

 paratively few species. 

 The literature of the sub- 

 ject, like that relating 

 to facultative parasitism 

 in general, is unsatis- 

 factory, for most of the 



determinations Of Species 99. Piophila casei. After Graham-Smith. 



have been very loose. 



Indeed, so little has been known regarding the characteristics of 



the larvae concerned that in many instances they could not be exactly 



