August, '08] 



JOURNAL OP ECONOMIC ENTOMOLOGY 



239 



Table II. Mean monthly temperatures and departures from normals at Dallas, Cal- 

 verf and Victoria, Texas, November, 1906, to June, 1907, inclusive 



Locality, 

 Texas. 



November. 



December. 



January, 1907. 



February. 



Monthly Depar- Monthly Depar- Monthlv' Depar- I Monthlv 

 mean°F. ture °F. mean°F. ture°F. mean °F.j ture °F. mean°F. 



Depar- 

 ture °F, 



Dallas . 

 Calvert . 

 Victoria 



Dallas .. 

 Calvert . 

 Victoria 



54.3 

 59.1 

 62.9 



—0.6 

 +0.1 

 —1.8 



51.6 

 56.8 

 59.2 



+3.8 

 +4.1 



+1.4 



53.4 

 59.8 

 63.4 



+8.5 

 +9.6 

 +9.8 



51.2 

 54.8 

 60.2 



+6.6 

 +2.8 

 +6.2 



March. 



April. 



May. 



June. 



-1.9 

 -4.4 

 -0.6 



The columns giving the departures from normals are particularly 

 significant as showing the very unusuall}^ warm winter and early 

 spring and the exceptional!}^ cold period following. It was actually 

 much warmer in March throughout Texas than during April and May. 

 These facts account for the unusually large percentages of survival, 

 the remarkably early beginning of emergence and the long duration 

 of the emergence period. At no time during the winter was hiberna- 

 tion complete anywhere in Texas. Weevils were active both in the 

 cages and in the fields. This has never happened before, except rarely 

 in extreme southern Texas. 



Next in order will be the consideration of the general results of the 

 observations upon the survival of weevils. 



Table III. Summary of Emergence records from hibernation experiments, 1906-1907 



It is probable that 11.5 is the largest percentage that has ever sur- 

 vived in Texas considering .so large an area. In the experiments of 



iBasis for computing percentage of eiuergencv is 57c less than the number 

 placed in the cage to allow for the escape of some through the wire. 



