128 



Longfellow (1913) found that cockroaches carried 

 Proteus vulgaris on their legs. 



Metalnikov (1920) in carrying out a series of experi- 

 ments to determine the immunity of the nun-moth to certain 

 organisms, found that the insect larva offered no resist- 

 ance at all to even small doses of Bacillus proteus 

 (Proteus vulgaris .) However, Metalnikov and Gaschen (1921) 

 found they could produce immunity "by injection of a 

 vaccine, which carried over into the adult stage. 



A description of Proteus vulgaris may he found in 

 Bergey' s Manual (5th ed. , p. hjl) . 



Longfellow, R. C. 1913 The common house roach as a car- 

 rier of disease. Am. J. Public Health, 3, 58-61. 



Metalnikov, S. 1920 Immunite de la chenille contre 

 divers microbes. Compt. rend. soc. "biol. , &3, 119-121. 



Metalnikov, S. and Gaschen, H. 1921 Compt. rend. soc. 

 hiol. , 85, 22^. 



Tribe: Salmonelleae 

 Genus : Eberthella 



EBERTHELLA 1 NSECT 1 COLA Steinhaus 



Insects concerned: The meadow grasshopper, Conocephalus 

 fasciatus var. fasciatus ; the milkweed "bug, OncopeltUs 

 fasciatus ; and the stink hug, prohahly Loxa variegata . 



Steinhaus (19^1) isolated Eberthella insecticola from 

 the alimentary tracts of the above insects. Relatively 

 large inocula of some of the strains were pathogenic to 

 mice. 



*Steinhaus, E. A. 19^1 A study of the "bacteria associated 

 with thirty species of insects. J. Bact. , k£, 757-790* 



Eberthella pyogenes (Migula) Bergey et al. 



Insect concerned: The cricket, Neombius fasciatus , var. 

 fasciatus . 



An organism similar to Eberthella pyogenes was isolated 

 "by Steinhaus (19^1) from the alimentary tract of specimens 

 of the ahove cricket that had "been collected in nature. 

 Eberthella pyogenes is described in Bergey 's Manual (5th 

 ed. , p. k66)> 



