178 



MISCELLANEOUS 

 GENERA AND SPECIES 



ASCOBACTER I UM LUTEUM Babes 

 Insect concerned: The olive fly, Dacus oleae . 



Petri (1910) found Ascobacterium lutem in the intestinal 

 tract of the larva of the olive fly. He suggested that the 

 presence of the "bacteria might "be quite favorable for the 

 digestion of the olive oil since Dacus oleae larvae "bore 

 into olives and necessarily ingest very large quantities 

 of oil. This may "be especially true of Ascobacterium 

 lutem which is found in large numbers of larvae living on 

 ripe and therefore oily fruit. 



Just what organism Petri refers to would "be hard to 

 judge. There is a Bacteridium luteum which was described 

 about 1872, and is commonly found in air and water (see 

 Bergey's Manual, 5th ed. , 1939? P- 2^0) and is now known 

 as Micrococcus luteus. . Also there is a Bacterium lutem 

 which Adametz described in 1885, and isolated from the 

 stomach contents of sheep and from water. (See Bergey's 

 Manual, 5th ed. , 1939? P- 633). Apparently, however, 

 these have no relation to the organism which Petri iso- 

 lated. 



Petri, L. 1910 Untersuchungen fiber die Darmbakterien 

 der Oliven feiege. Centralbl. Bakt. , £ar. Inf. , II, 

 26, 557-376. 



CocCQBAC I LLU S ACR I D I ORUM d'Herelle 



Insects concerned: Schistocerca americana; Schistocerca 

 peregrina ; Schistocerca paranensis ; Melanoplus femurrubrum ; 

 Melanoplus bivittatus ; Melanoplus atlantis ; Tmetis muri - 

 catus ; Oedalens nigrofaciatus ; Arcyptera flavicosta ; 

 Pachytylus (Locusta) migratoroides ; Atta sexdens ; Docio - 

 staurus maroccanus , Pezomachus botrana; Stauronotus 

 maroccanus ; Solenopsis gemminata ; Bombyx mori ; Zonocerus 

 elegans ; Caloptenus sp. ; Tropidacris dux . 



Coccobacillus acridiorum was first isolated by d'Herelle 

 (1911) in Yucatan, Mexico, from a species of locust, 

 Schistocerca americana Drury. While in Mexico, d'Herelle 

 noticed a heavy mortality occurring in the destructive 

 South American migratory locust which had arrived from 

 the borders of Guatemala. From 1909 to 19H the epizootic 



