151 



A description of the organisms may "be found in Bergey's 

 Manual (5th ed. , page 2^2). 



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

 with thirty species of insects. J. Bact. , j+2, 757-790. 



Micrococcus ovatus 



Insect concerned: Silkworm, Bombyx mori . 



According to Northrup (191*0, Pehrine, now known to he 

 caused "by a protozoan, was at one time supposed to he due 

 to Micrococcus ovatus [Lehert, 1858]. 



Lehert, H. I858 Berliner Entomologische Zeitschr. (From 



Northrup, I91U. ) 

 Northrup, Z. 191^ A hacterial disease of the June 



"beetles, Lachnosterna . Cent. f. Bakt. Parasit. u. 



Inf ekt. , kl, 321-339. 



M I CROCOCCU S PARVULU S Bergey et al. 



Insect concerned: The American roach, Periplaneta ameri - 

 cana. 



Hatcher (1939.) isolated Micrococcus parvulus from the 

 feces of the American roach. Veillon and Zuber originally 

 isolated this "bacterium from human appendices, "buccol 

 cavities, and lungs, and named it Staphylococcus parvulus . 

 In the third edition of Bergey's Manual, 1930, p. 92, this 

 "bacterium was called Micrococcus parvulus . In the 5th 

 edition, p. 285, the name has "been changed to Yeillonella 

 parvula . A complete description may "be found in Bergey's 

 Manual. 



Hatcher, E. 1939 The consortes of certain North Carolina 

 Blattids. J. Elisha Mitchell Sci. Soc. , 55, 329. 



M 1 CROCOCCus p 1 er 1 p 1 s Burrill 



Insect concerned: The cahhage "butterfly, Pieris rapae . 



Chittenden (1926) states, "in some seasons the larvae 

 are destroyed in large numbers "by a contagious hacterial 

 diseased, caused "by Micrococcus pieridis. " However, as a 

 rule the larvae are not very susceptible. 



