JOURNAL OF ECONOMIC ENTOMOLOGY 



OFFICIAL ORGAN AMERICAN ASSOCIATION OF ECONOMIC ENTOMOLOGISTS 



JUNE, 1916 



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This issue, with two detailed studies of the bionomics of Musca 

 domestica, may well be characterized as our house-fly number. It is 

 hardly to be expected that the matter relating to this insect will be 

 accepted without question and if a vigorous skepticism is aroused and 

 others are spurred on to solve problems of practical importance in con- 

 trol work, so much the better. There is no question but that more 

 attention should be paid to the chemotropic and phototropic reactions 

 of both adults and larvse since limitations along these lines suggest 

 some of the most promising methods f6r the control work of the future. 



The hibernation of this insect, especially under conditions obtaining 

 in the northern United States, is another matter worthy of careful in- 

 vestigation, and it is surprising that the method or methods of winter- 

 ing have not been carefully worked out in several representative lo- 

 calities, since the common belief that the insect hibernated as an adult 

 has been questioned for several years. 



There appears in this issue a brief record of untoward results fol- 

 lowing the use of a comparatively untried insecticide. The autopsy 

 disclosed unsuspected pathological conditions which were responsible 

 for the death of the animal. It is only another case emphasizing 

 the desirabihty of exhaustive tests before there are unqualified recom- 

 mendations, and the incident itself suggests the ease with which 

 totally erroneus conclusions may be drawn. 



