98 



Bacter ium cyaneus 



Insect concerned: The honey "bee, Apis mellifera . 



White (1906) isolated Bacterium cyaneus from pollen and 

 the "bodies of healthy honey "bees. He has given a complete 

 description of the organism. 



White, G. F. 1906 The "bacteria of the apiary with spe- 

 cial reference to "bee diseases. U. S. Dept. Agr. , Bur. 

 Entomol. , Bull. #1*+, 50 pp. 



Bacterium D White 



Insect concerned: The honey "bee, Apis mellifera . 



White (1906) frequently found Bacterium D present in 

 the intestines of normal honey "bees. Since the "body tem- 

 perature of the honey "bee and that of warm-hlooded animals 

 is ahout the same, he found that the "bacterial flora of 

 the honey "bee intestine was very similar to man and ani- 

 mals. 



He has given a complete description of the organism 

 which is an anaerohe. 



White, G-. F. 1906 The "bacteria of the apiary with spe- 

 cial reference to "bee diseases. U. S. Dept. Agr. , 

 Bureau Entomol. , Tech. Bull. , No. 15, 50 pp. 



Bacterium delen dae-muscae Roubaud and Descazeaux 



Insects concerned: The stahle fly, Stomoxys calci trans ; 

 the house fly, Musca domestica ; "blow flies and flesh flies. 



In 1923> Rouhaud arid Descazeaux discovered a "bacterial 

 disease of fly larvae caused "by Bacterium delendae -mus cae . 

 They state that it is the first microorganism described 

 in literature that causes a specific "bacterial infection 

 of house and other flies. The disease is primarily a 

 larval infection, the larvae "becoming infected "by ingesting 

 the "bacteria with their food and die in from 2 to 30 days. 

 Flesh flies die at the commencement of the pupae stage, 

 house flies at the end of that stage and Stomoxys after 

 emergence. 



*Rouhaud, E. and Descazeaux 19^3 Sur un agent "bacterien 

 pathogene pour les mouches communes : Bacterium delendae - 

 mus cae n. sp. Compt. rend, -hehdom. acacT sci. , !'('( , (l6 z 

 ITT. 



