109 



BACTER I um PARATYPHI Kayser 

 Insect concerned: Euxoa segetum . 



Bacterium paratyphi was isolated from the intestine of 

 healthy larvae of Euxoa segetum "by Stutzer and Wsorow 



(1927). 



Salmonella paratyphi (Kayser) Bergey et al. is the 

 accepted name for Bacterium paratyphi (Bergey' s Manual, 

 5th ed. , 1939, P. ^.) 



Stutzer, M. J. and Wsorow, W. J. 1927 fiber Infectionen 

 der Raupen der Wintersaateule ( Euxoa segetum Schiff . ) 

 Centr. f . Bakt. u. Parasitenk. , Jl, II3-I29. 



Bacterium p i er i s liquefaciens alpha Paillot 



Insects concerned: Pieris brassicae ; Vanessa urticae ; 

 Yanessa polys chloros ; Euproctis chrysorrhoea ; Porthetria 

 dispar . 



Paillot (1933) found Bacterium pieris liquefaciens 

 alpha to "be very pleomorphic, its shape depending upon the 

 insect it parasitized. In the "blood of the larvae of 

 Pieris brassicae , from which it was isolated, the ""bacter- 

 ial elements are in the form of coccobacilli; ... In the 

 larvae of Vanessa polys chloros L. , the longer elements are 

 considerably longer" than in the above larvae. In the 

 larvae of Lymantria dispar L. , the organism lost all as- 

 pects of a cocco"bacillus and was transformed into veritable 

 filaments, some as long as h-0 microns. These morphologi- 

 cal changes did not affect the vital and "biochemical pro- 

 perties of the organism. 



Paillot, A. 1933 L' Infection chez les Insectes, 535 PP- 

 Imprimerie De Trevoux, G. Patissier. (See pp. 155-137; 

 llj.5-.lV7.)' 



Bacter 1 um p 1 tyocampae Dufrenoy 



Insect concerned: The processionary caterpillars of pines, 

 Cnethocampa pityocampa . 



Dufrenoy (1919) isolated three pathogenic organisms from 

 the above insect: Bacterium pi tyocampae , Streptococcus 

 pityocampae alpha , and Streptococcus pi tyocampae beta. 

 Bacterium pi tyocampae according to Paillot (1933); is a 

 Gram negative, encapsulated organism. 



