55 



Sawamura (I906) lists this "bacillus as one which pro- 

 duced "flacherie "by multiplying in the "body of the silk- 

 worm. " Bacillus Elleribachi is prohahly a synonym for 

 Bacillus cereus . 



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

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



BAC I LLUS E.NTOMOTOXICON Duggar 



Insects concerned: The squash-hug, Anasa tristis ; the 

 chinch-hug, Blissus leucopterus ; the "box-elder "bug, Lepto - 

 coris trivittatus ; and larvae of the white -lined morning 

 sphinx, Deilephila lineata ; Lachnosterna fusca; and a 

 tomato worm (Protoparce). 



This hacillus, which Duggar (I896) named Bacillus 

 entomotoxicon , was found "by him to he the cause of a 

 disease of the squash-hug, Anasa tristis . Both lahoratory 

 and field experiments showed the disease to he easily 

 trans miss ah le to healthy squash-hugs "by contact with pure 

 cultures of the organism of the fluids of infected insects, 

 nymphs "being more readily infected than adults. Infusions 

 made from the growth of this organism on agar contained 

 an active principle which "kills many insects after a very 

 short period of immersion. " While young chinch -hugs 

 ( Blissus leucopterus ) were also susceptible to the infec- 

 tion, adult chinch-hugs were strongly resistant, as were 

 the grubs and larvae listed ahove. 



Since Duggar describes this "bacterium as not producing 

 spores, the generic name Bacillus would he a misnomer 

 according to present day nomenclature. 



Dugger, B. M. 1896 On a "bacterial disease of the squash- 

 hug (Anasa tristis DeG. ) . Bull. Illinois State Lah. 

 Natural History, h, 31+0-379. 



BAC 1 LLUS EQU IDI STANS NogUChi 



Tick concerned: The wood tick, Dermacentor andersoni . 



Nogachi (1926) isolated this hacillus and two others 

 from the spotted fever tick, Dermacentor andersoni . He 

 descrihed its cultural characteristics in detail. The 

 "bacterium is not a spore-former, hence, it is unfortunate 

 that Noguchi gave it the generic name "Bacillus. " 



