FANNIA CANICULARIS 



853 



The fly is commonly fouiid in houses in Europe and North America. The 

 larvae normally live in vegetables, by means of which they enter the human 

 digestive tract. They are provided with branched pro- 

 cesses on the segments. 



Pathogenicity. — Blankmeyer gives an account of a 

 case of this infection which is feaid to have lasted some 

 twelve years, being associated at first with abdominal 

 pain, bloody diarrhoea, severe pains in the region of 

 the liver. After the initial attack the pains continued, 

 but instead of diarrhoea, constipation resulted, with 

 severe headaches. The abdomen was distended. 



The patient was treated with raw pumpkin seeds and 

 then given a saline purge, and passed 1,000 to 1,500 

 Fannia larvae. After this he still passed a few larvae for 

 some days, but eventually recovered. This is a curious 

 case, in that the larvae lived for years inside the man, 

 and because it is not clear how such an enormous infection 

 was possible. Chevrel has collected and described seven 

 authentic cases of myiasis of the urinary passages caused 

 by the larva of this fly. 



Fannia desjardensii Macquart. 



Synonyms. — Flomalomyia desjardensii Macquart, An- 

 tkomyia desjardensii Macquart. 



Wellman describes cases of this myiasis in the alimen- 

 tary canal of human beings in Angola who showed 

 d^^senteric symptoms, and which he successfully treated 

 with castor-oil, then santonin, and then castor-oil again. 



The disease is locally known as ' ovaenyo,' a term which signifies maggots. 

 The editors of the Journal of Tropical Medicine in 1907 asked for information 



Fig. 444. — Larva 

 OF Fannia can- 

 icvilaris. 



Fig. 445. — Penicillidia dufouri Westwood from a Bat: Female, (X8.) 



