36 



SCOLYTID^. 



Micracis hirteUus Lee. — Bred from dead Willow at Poway. 



Chietoplilocm hijstrix Lee. — I have bred this rare beetle from tlie dead 

 wood of Rhus integrifoUa. 



Pltiiophthorus digestus Lee. — Associated with the preceding species 

 aud bred from the same wood. 



LUCILIA NOBILIS PARASITIC ON MAN. 



By P'r. Meixp:rt. 



[Translated by Martin L. Lixell from the Ssertrvk af Entomologiske Meddelelser, 

 1 Bind, 3 Hefte, 1888.] 



It is an old story that the human body is subject to attack from sev- 

 eral ecto- and endo-parasitic insects, and a whole literature is cited by 

 Hagen on Insecta in corpore lininano. It is principally Dipterous larvie 

 that are recorded and described as occurring in the stomach, or vomited 

 through the mouth, or in the intestine or ejected through the anus, or 

 carried out with the urine, or occurring in the nasal cavities, or finally 

 living beneath the skin, in the eyes or in the ear. All recorded cases 

 are not reliable, and the present author will not deny that he belongs 

 to the skeptics in regard to many published stories, and he also thor- 

 oughly doubts that any Dipteron is sufficiently specialized to live ex- 

 clusively in or upon man, not even excepting the South American Lu 

 cilia hominivorax. 



In recent years Dr. G. Joseph, in Breslau, has applied himself to the 

 subject of diseases caused by or accompanied with attacks by Dipterous 

 larviB, and he has established or more definitely determined a pe(;uliar 

 form of disease — Myiasis or Fly-disease — in several chief forms, partly 

 as Myiasis dermatosa muscosa (caused by Muscidic) and M. der. cestrosa 

 (caused by Q^stridce), partly as Myiasis interna and .1/. sepfica. Among 

 the Dipterous larviie mentioned by Joseph the larvte of Sarcophila wolil- 

 farti may be of special interest. The fly was raised from larvte that 

 occurred in the nasal cavities and in the ear of man, first by Wohlfart 

 (1770) and more recently and in larger numbers by Portschinsky 

 (1875-'84), who has satisfactorily studied the species. At large the fly 

 is very rarely found. Joseph gives in his essay " \] ehev Myiasis externa 

 dermatosa^ 1887," a description of the fly and its larva. 



At the end of August, 1887, I received from Dr. A. Iverson a dozen 

 rather small Dipterous larvie that were said to have been taken from 

 the ear of a man with ear discharges, and which he thought he got by 

 sleeping on the grass. The larviie came in glycerine and were partly 

 shriveled up, and I therefore did not think fit to do anything with 

 them, but wrote back that it was probably Sarc. wohl/arti, although 



