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THE CANADIAN ENTOMOLOGIST 



at each end and eggs were laid into the ends quite frequently. The 

 following short tables summarize: 



TABLE I.— SUMMARY OF ELEVEN PAIRS KEPT 



AUGUST 12, 1912. 



IN CONFINEMENT FROM 



No. 



1 

 2 

 3 



4 

 5 



6 



7 



8 

 9 



10 



11 



Dates of Finding 



Aug. 19, 24; Sep. 19; Oct. 2, 10 

 Oct. 11; Nov. 1.5, 30; Dec. 7,16 

 Sep. 20; Oct. 2, 11; Nov. 13, 



28; Dec. 7, 16 



Oct. 1, 10; Nov. 11 



Sep. 20; Oct. 2, 11; Nov. 12, 



28; Dec. 7, 16 



Sep. 20; Oct. 1, 12; Nov. 15, 30 

 Sep. 19; Oct. 1,9; Nov. 11,27; 



Dec. 6, 16 



Aug. 19, 24; Oct. 1, 9; Nov. 28 

 Aug. 24; Sep. 19; Oct. 1, 10,31; 



Nov. 27 



Aug. 19; Sep. 20; Oct. 2; Nov. 



13, 27 



Aug. 19, 24; Oct. 3, 12; Nov. 



15, 30 



*Five females. tAverage time: one died after 51 days, one after 107 days, two after 110 

 days and one at the end of 130 days. 



The total progeny of a female for several months is not very 

 large from these data, but I am quite sure that all of the eggs were 

 not found; the food was changed about every ten days. At any 

 rate, it is quite evident that both sexes are able to live some weeks 

 and that the rate of egg-laying is slow. Also that the young larvae 

 are quite unable to live in dried-up cane and that the beetles require 

 a constant supply of food. The egg stage was not accurately 

 obtained, but it was certainly not more than a week in duration. 

 With better care, it is quite probable that the beetles would have 

 lived considerably longer, still reproducing. Some of the females 

 laid fertile eggs, when isolated from males, for about four months 

 after. The rate of oviposition was not regular, sometimes several 

 weeks elapsing between ovipositions. 



