VERMINOUS DISEASES. 315 



Dr. Alexander Munro, in his Morbid Anatomy, 

 page 060, after having spoken of intestinal worms, 

 goes on to say, that, " besides the species of worms 

 already treated of, others of a diflferent description 

 have been occasionally discharged by stool. I al- 

 lude to caterpillars, or the larvae of insects. I 

 sent for examination, several specimens of them to 

 Mr. Leach, who favoured me with the subjoined 

 report. ' They are the larvae of insects as follows : 



*^No. 1. The ova of the musca vomitoria. 



^^ My friend Donovan informed me, that he had 

 seen the larva of this insect in the intestines of a 

 body in a state of putrefaction. The eggs most 

 probably were deposited at the mouth, or anus, and 

 the larvae had found their way thither on their 

 hatching* which soon happens. 



^' Nos. S, 3, and 4 are larvae of three unknown 

 species of coleopterous insects. 



^' No. ILL is figured in the Medical Journal, 

 vol. viii, p. 4?, fig. viii. I am pretty certain, that 

 it is what the farmer calls the wire-worm. Of 

 what insect it is the larva will soon be made known, 

 as Sir J. Banks, at this time, is breeding a great 

 many, in order to ascertain this important fact. 



** Nos. 5, and 7? larvae of the papilio brassicae, 

 or some species much allied to it. 



^^ No. 6. The pupa of some musca. Species un- 

 known to me." 



Some years ago, a woman, now living in Bid- 

 deford, Maine, had an issue for a long time, in the 

 bach of her neck. 



