1*3 



Streptococcu s d astor l anu s Krassilstschik 

 (See Streptococcus bombycis . ) 



Insect concerned: The silkworm, Bombyx mori. 



This organism, was isolated in 1896 "by Krass lists chik. 

 Paillot (1928) suggests that Streptococcus pastorianus may 

 "be the same as Streptococcus "bonibycis . Bergey's Manual 

 (5th ed. , p. 357) lists both of these organisms. 



-^Krass lists chik, I. 1896 Compt. rend. acad. Sci. , ^27. 



Paillot, A. 1928 Les maladies du Ver a Sole, Grasserie 

 et dysenteries. 328 pp. Editions du Service Photo- 

 graphique de 1 'Universite, Lyon. (See pages 171-172. ) 



Streptococcu s pity oc amp ae a lpha Dufrenoy 



Insect concerned: The process ionary moth caterpillar, 

 Cnethocampa pityocampa . 



Dufrenoy (I919) found that three organisms attacked 

 the process ionary moth caterpillar: Bacterium pityocampae , 

 Streptococcus pityocampae alpha , and Streptococcus pityo - 

 campae "beta . When the caterpillars are inoculated with 

 Streptococcus pityocampae alpha, they die In two to four 

 days, the muscles being infiltrated with the coccus and 

 the fibers degenerating and losing their striation. 



Paillot (1933) states that he is surprised that the 

 beta strain of this organism was given the same generic 

 name as the alpha strain since the beta strain is gram 

 negative. Furthermore, Paillot indicates that the alpha 

 type is ill-placed in the Streptococcus genus because the 

 alpha strain is motile. 



^Dufrenoy, J. 1919 1© S formes de degenerescence des 

 chenilles de Cnethocampa pityocampa paras itees. Compt. 

 rend. soc. biol. , 82, 288-289. 



Paillot, A. 1933 L' Infection chez des Insectes. 535 pp. 

 Imprimerie de Trevoux, Paris. (See pp. 125-126. ) 



Streptococcus pityocampae beta Dufrenoy 

 (See Streptococcus pityocampae alpha. ) 



Streptococcus pyogenes Rosenbach 

 Ticks concerned: Argas persicus ; Ornithodoros moubata. 



