804 THE RELATION OF FLIES TO MYIASIS 



In a case of the occurrence of F. canicularis in the United 

 States reported by Blankmeyer (1907) it is stated that "the 

 symptoms consisted of abdominal pains and distention and bloody 

 diarrhoea followed by constipation." A saline purgative resulted 

 in the passing of a bulky stool which was found alive with the 

 larvae numbering from 1000 to 1500. A few larvae continued to 

 be passed for a few weeks. 



Austen refers to the only case of urethral myiasis known to 

 him in England. In this case which was reported by Dr J. F. 

 Palmer to the Chelsea Clinical Society in 1901 a single larva 

 identified by Austen as F. scalaris was passed per urethram by a 

 male patient. 



A case of vaginal myiasis in an old beggar woman is described 

 by Pieter (1912). 



Laboulbene (1856) records the rearing of the larvae belonging 

 to this genus from the intestine of a woman who had suffered for 

 some time from stomachic pains with loss of sleep and appetite. 

 On October 12th she took castor oil and after violent efforts and 

 a further dose of an emetic she vomited altogether about seventy 

 larvae. The expulsion of the larvae was followed by a regaining 

 of the appetite and sleep. In 1909 I recorded the occurrence of 

 the larvae of F. canicularis in the stools of patients suffering from 

 intestinal disorders. Soltau (1910) has recorded the occurrence at 

 Plymouth on May 28th of the larva of F. canicularis in the stools 

 of a man who had not previously had intestinal pains. The 

 occurrence in September 1909 in the faeces of a boy aged 12 of 

 the larvae of a species of Fannia has been described by Garrood 

 (1910). 



The occurrence of dipterous larvae in the intestine is recorded 

 by Hope in 1840, but in these earlier records it is frequently 

 impossible to determine the species. 



The Bloiv-fiies and Blue- or Green-buttle flies, Calliphora spp., 

 Lucilia spp. and Sarcophaga spp. 



The larvae of these species of flies are chiefly sarcophagous 

 feeding upon wounded and ulcerated surfaces in various mammals 

 including man. Cleland (1912) records the occurrence of the 

 larvae of Calliphora in an ulcer from a leper. In 1905 some eggs 



