1893.] ENTOMOLOGICAL NEWS. 233 



prove the most satisfactory method of preventing injury that could be de- 

 vised. The specially interesting series of experiments were those made 

 with bacterial diseases. Quite a number of disease germs were cultivated, 

 but the efforts made to inoculate the Boll worm were in all cases practical 

 failures. This accords very well with what has been observed in other 

 cases, and it lends weight to conclusions that have been arrived at, that 

 insect diseases depend too much upon conditions which are not under the 

 control of man to be at any time considered as reliable, except in very 

 peculiar instances. 



Notes 



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Dr. J. E. TALMAGE, of Salt Lake City, Utah, disposes of the assertion 

 often made that no living thing can exist in the waters of the Great Salt 

 Lake. He records the presence of Artemia fertilis Verrill ; larvae of 

 Tipulidae, probably Chironomus oceanicus Packard; a species of Lorixa, 

 probably C. deco/orUhler; and lastly the larvae and pupre of a fly Ephydra 

 gracilis Packard. 



" HITHERTO the two groups Macro- and Micro-lepidoptera into which 

 butterflies and moths have been divided have been characterized by the 

 former including all the large and conspicuous species, and the latter only 

 containing small and inconspicuous moths. Dr. Chapman, in a commu- 

 nication to the Entomological Society of London, has endeavored to raise 

 the Micros in general favor by transferring to that group several of our 

 finest moths. According to him the pupa of the Goat-moth (Cossns //>- 

 niperda) possesses all the characteristics of a typical Micro-lepidopterous 

 pupa, and for a similar reason the genera Sesia, Zyga:na, /'/-(ten's and 

 Hepialus should be placed among the Micros." H.vclian^e. 



RECENTLY my attention was called to a cocoon which was found in a 

 shell of the snail known as Helix albolabris, colltTtcd at Lake Hupat- 

 cong, New Jersey. Thinking the cocoon to be that of one of the dipter- 



7* 



