130 



surfaces of their "bodies or in their intestinal tract with 

 negative results. He concluded that the formation of 

 formic acids killed and inhibited the "bacteria. Wheeler 

 (191*0 thinks this was an erroneous conclusion, and that 

 it is very likely that ants, "because of their hah its, do 

 spread pathogenic "bacteria. 



The possible germicidal action of the gastro-intestinal 

 secretions of the yellow fever mosquito ( Aedes aegypti ) 

 on E. typhosa and Serratia marcescens w as found to "be 

 negative "by St. John, Simmons, and Reynolds (1930). 



A complete description of Eberthella typhosa may "be 

 found in Bergey's Manual (1939, 5th ed. , page £63). 



Chow, C. Y. 19^0 The common blue-bottle fly, Chrysomyia 

 megacephala , as a carrier of pathogenic "bacteria in 

 Peiping, China. Chinese M. J., 57, 1^3-153- 



Faichnie, N. 1909a Fly-home enteric fever; the source 

 of infection. J. Roy. ^Army Med. Corps, 13, 580-58^. 



Faichnie, N. 1909b Bacillus typhosus in flies. J. Roy. 

 Army Med. Corps, 13, 672. 



Ficker, M. 1903 Typhus und Fliegen. Arch, f . Hyg. , ^6, 

 27^-283. 



Graham-Smith, G-. S. 1913 Flies in relation to disease. 

 292 pp. Cambridge University Press, Cambridge. 



Hamilton, A. 1903 The fly as a carrier of typhoid; an 

 inquiry into the part played "by the common house fly 

 in the recent epidemic of typhoid fever in Chicago. 

 J. Amer. Med. Assoc, kO, 576-583- 



Howard, L. 0. 1911 The house fly; disease carrier. 2d 

 ed. , 312 pp. Frederick A. Stokes Company, New York. 



Riley, W. A. and Johannsen, 0. A. 1932 Medical Entomol- 

 ogy. 1st Ed., V76 pp. McGraw-Hill Book Co., New York. 

 (See p. 121. ) 



St. John, J. H. , Simmons, J. S. , Reynolds, F. H. K. 1930 

 The survival of various microorganisms within the gas- 

 tro-intestinal tract of Aedes aegypti . Amer. J. Trop. 

 Med. , 10, 237-2^1. 



Wheeler, W. M. 191^ Ants and bees as carriers of patho- 

 genic organisms. Am. J. Trop. Med. and Prev. Med., 2, 

 160. 



Genus : Salmonella 



Salmonella choleraesuis Weldin 

 (See Bacillus cholerae suis . ) 



Insect concerned: The honey bee, Apis mellifera , 



