96 



Metalnikov (1930) states that Bacterium cazaubon is 

 pathogenic for all of the above insects, "being one of the 

 most virulent "bacteria known for the corn "borer, killing 

 the larvae in 10 to 15 hours after infection through the 

 mouth. The infected larvae usually "become "black in color. 

 It is quite likely that Bacterium cazaubon , Bacterium 

 cazaubon No. I, and Bacterium cazaubon No. II (Metalnikov, 

 Ermolaev, and Skobaltzyn, 1930) are one and the same 

 organism. Since the organism or organisms are spore 

 formers, it seems that the preferable generic name would 

 "be Bacillus . 



Complete descriptions' of Bacterium cazaubon No. I and 

 Bacterium cazaubon No. II have been given by Metalnikov, 

 Ermolaev, and Skobaltzyn (1930). 



Metalnikov, S. 1930 Utilisation des microbes dans la 

 lutte contre Lymantria et autres insectes nuisbles. 

 Compt. rend. soc. biol. , 105, 535-537- 



* Metalnikov, S. , Ermolaev, J. , and Skobaltzyn, V. 1930 

 New bacteria pathogenic to the larvae of Pyrausta 

 nubilalis Hb. , Internat. Corn Borer Invest., Sci. Repts., 

 3, 28-36. 



BACTER I um cazaubon No , J_ Metalnikov et al, 

 (See Bacterium cazaubon . ) 



Bacter I um caz au BON No . 1 I Metalnikov et al, 

 (See Bacterium cazaubon. ) 



Bacter i um cellulqsum 



Insect concerned: Cetonia floricola . 



According to Jepson (1937) , Werner thinks that Bacterium 

 cellulosum plays an essential role in the nutrition of the 

 inquiline larva of Cetonia floricola . 



Jepson, W. F. 1937 Observations on the morphology and 

 bionomies of Serica brunnea L. with notes on allied 

 chafer pests. Part I. The morphology of the larva 

 of Serica brunnea L. Bull. Entomol. Research, 28, 1^9- 

 I65. 



Bacter i um chr I st I e i Chorine 

 Insect concerned: The corn -borer, Pyrausta nubilalis 



