82 



During an Investigation of the intestinal flora of 

 termites of central Texas, Roberts (1935) isolated an 

 organism which seemed to "be -uniformly present in the ter- 

 mite intestine. He named the organism Bacillus rotans , 

 "because of the rotary motility of young colonies. 



A complete description of this organism may "be found in 

 Bergey's Manual, 5th edition, p. 696. 



^Roberts, J. L. 1935 A new species of the genus Bacillus 

 exhibiting mobile colonies on the surface of nutrient 

 agar. J. Bact. , 2£, 229-238. 



BAC I LLUS RUBEFAC I ENS Zimmermann 



Insect concerned: The silkworm, Bombyx mori. 



This "bacterium was listed "by Sawamura (1906) as patho- 

 genic to silkworm larvae when experimentally infected. 



Sawamura, S. 1906 Note on "bacteria pathogenic to silk- 

 worm. Tokyo Imp. Univ. Coll. Agr. Bull. , 7» 105 . 



Bac I llus salutar lus Metchnikoff 



Insect concerned: Anisoplia austriaca . 



Paillot (1933) refers to this "bacillus as having "been 

 found "by Metchnikoff in 1879 while studying the "Green 

 Muscardine" of Anisoplia austriaca . Metchnikoff found 

 this organism in many of the dying larvae. 



•^Metchnikoff, E. 1879 Maladies des hannetons du "ble 

 ( Anisoplia austriaca ). Odessa [in Russian] . 



Paillot, A. 1933 L 1 infection chez les insectes, 535 PP< 

 Imprimerie de Trevoux, Paris. (See page 123.) 



Bac l llu s sept i c aem 1 ae lophyr i Shiperovich 



Insect concerned: The sawfly, Diprion sertifer . 



In 1925, Shiperovich observed a bacterial disease among 

 the larvae of sawflies due to an organism which he named 

 Bacillus septicaemiae lophyr i . Schwerdtfeger (1936) says 

 that it probably caused mass mortality among the larvae of 

 sawflies in nature. 



