REHN AND HEBARD 



51 



Measurements (in millimeters) — Continued 



-1 p 



o"c-2 "S 



J3T3 



c.a g' 



11 



16.6 



16.3 



17.8 



17.2 



17 



18.2 



18.7 



17.3 



19 



19.2 



19.6 



19 



19 



21.2 



22 



20.8 



17.1 20.4 



(17- (19.2- 



17.2) 22) 



17.1 19 



17 



19.4 



18.9 20.5 



17.8 17.6 



18.7 18.9 

 16.2 19.8 

 17.2 19.6 



19 18.8 



18.4 23 



18.8 21 



18.4 .... 



Biological Notes. — The earliest date we have for the occurrence 

 of the species in an adult condition is June 6, when Blatchley 

 secured it in Vigo County, Indiana. The earliest date in the 

 series now before us is June 14 to 15, Bee Spring, Kentucky, 

 while we find mature specimens from northern New Jersey (Ram- 

 sey) taken as early as June 23. The latest record we have is 

 from Harrisburg, Pennsylvania, October 15. From information 

 given by Davis, on the basis of the life of a male kept in captivity, 



TRANS. AM. ENT. SOC, XLII. 



