ENTOMOLOGY

108 SANITARY ENTOMOLOGYStreptococCU8 fecali8 Andrewes and Horder, an organism occurringnormally in the human intestine and occasionally pathogenic has beenisolated from city caught MU8ca dome8tica by Scott (1917), Cox, Lewisand Glynn (191!?l) and Torrey (191.!?l).StreptococCU8 pyogene8 Rosenbach, an organism causing ERYSIPE­LAS, SUPPURATION and SEPTICAEMIA was isolated by Scott(1917) from city caught Musca domestica in Washington.Streptococcus 8alivariU8 Andrewes and Horder, an organism frequentlyfound in the mouth, but rarely pathogenic, has been isolated fromthe intestines of city caught Musca domcstica by. Torrey (191!?l), andwas also found on flies by Cox; Lewis and Glynn (191!?l).Diplococcu8 gonorr7weae N eisser (Gonococcus), the cause of GONOR­RHOEA, was found by Welander (1896) carried on the feet of a flyfor three hours after they had been soiled with secretion.Diplococcu8 intracellulari8 meningitidi8 Weichselbaum (M eningococ­CU8), the cause of CEREBROSPINAL MENINGITIS, is thought to bepossibly carried by flies by MacGregor (1917).Micrococcu8 flavu8 was isolated by Torrey (191!?l) from the intestinalcontent as well as the surface of city caught flies.Micrococcus tetragenus Gaffky, commonly found in the human body,sometimes pathogenic, sometimes saprophytic, was isolated from Muscadomc8tica by Scott (1917).Staphylococcu8 pyogenes albus Rosenbach, a cause of SEPTIC1\.E­MIA, was isolated by Cao (1906B) from the mucilaginous envelope coveringthe eggs of Musca domestica, Sarcophaga 'Vomitoria, Lucilia caesarand Calliphora 'Vomitoria at the time of deposition. Scott (1917) isolatedit from the bodies of MU8ca domc8tica.Staphylococcus pyogenes aurcus Rosenbach, a frequent cause ofABSCESSES, etc., was shown by Celli (1888) to retain its virulence afterpassing through the flies' intestines. Herms (1915) proved by experimentthat MU8ca domestica can carry great numbers of this organismon ib feet. Torrey (191!?l) and Scott (1917) isolated it from the bodies!)f city caught flies. Cao (1906B) isolated it from the eggs at the timeof deposition of laboratory caught flies of Musca domestica, Calliphoravomitoria, Sarcophaga camano, and Lucilia caesar.Staphylococcus pyogencs citreua Passet, a pathogenic, chromogenic,pus-forming organism, was il!'olated by Scott (1917) from bodies ofhouse flies Musca domestica in VVashington. Cao (1906B) fed larvae ofMusca dome8tica, Sarcophaga carnaria, Calliphora 'Vomitoria, andLucilia caesar on meat polluted with this organism and recovered it fromthe feces of mature .flies bred fron these larvae.Sarcina aurantiaca Lindner and Koch, a zymogenic, chromogenic(orange yellow) organism found in air and water, rarely pathogenic,