LARVA OF A FLY TN THE HUMAN INTESTINE. 215 



Note on the Larva of a Fly (Sarcophaga sp.) 

 occurring in the Human Intestine. 



By 

 Ernest Wari-eii, D.Sc.L.oii<l., 



Director of the Natal Government Museum. 



In June of 1903 the Rev. A. T. Bryant, of Natal, sent to 

 me for identification some larvae in spirit expelled from the 

 intestine of a Kafir girl. This gentleman informed me that 

 such larvse frequently occur ainong the Kafirs. 



An examination of the larvae showed that they were the 

 grubs of a fly. 



In January of 1904 Dr. Campbell Watt, of Maritzburg^ 

 brought to me two living larvae, about ^ in. in length, which 

 had been passed by a female patient (European) having the 

 ordinary symptoms of worms. I was informed that dozens 

 of these larvae had been passed from time to time. The diet 

 of the patient had been extremely abstemious, and included 

 but little flesh food of any kind. The grubs were passed 

 more or less intermittingly in batches. 



The larvae were obviously fly larvfe, and resembled in every 

 . way, except in their small size, those sent to me by Mr. 

 Bryant. 



The two grubs were placed in an incubator at 90° F. in a 

 glass-capsule and supplied with excrement. One of the 

 specimens, unfortunately, escaped from the capsule and died. 

 In four days the second specimen was full grown, and had 

 increased in length from -^ in. to about | in. The larva now 

 became extremely restless, crawling round and round the 

 VOL. 1, PART 2. 16 



