EMERGENCE FROM BIBERNATION. L907. 



69 



records now al hand indicate thai emergence in;i\ lake place when- 

 ever the mean average temperature exceeds 55 F. It is certain 

 that weevils ma\ be active al a temperature considerably lower 

 than this, hut the records do not indicate that there is a genera] 



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emergence from hibernation al a lower temperature. A ft or having 

 left t heir winter quarters, weevils ma v conl mue acl ive al considerably 

 lower temperatures than are required to draw them oul from their 

 shelter. This statement may, in part al least, explain the continued 



