94 ENTOMOLOGICAL NEWS. [Mar., "18 



her 7-9-11. While they appeared to be very lively they ate 

 sparingly. Both sexes were so plump and heavy that males 

 were often mistaken for females. They seemed to be nervous 

 and would fly frequently, even without an apparent cause, but 

 when they were subjected to the "Fatigue Experiment" as used 

 on 12-pitnctata (Journal of Economic Entomology, Vol. 9, p. 

 554), they proved to be decidedly lacking in power of en- 

 durance. 



The first pair put to the real test, rated as No. I, made the 

 following record : 



Nov. n, fatigued in 8 min. 



Nov. 12, fatigued in 11 min.; ate very little. 



Nov. 13, fatigued in 8 min. 



Nov. 14, fatigued in 14 min. ; nibbled in a mechanical manner. 



Nov. 16, fatigued in 16 min. 



Nov. 17, fatigued in 12 min. ; would not eat. 



Nov. 18, fatigued in 14 min.; very restless. 



Nov. 19, fatigued in 8 min. ; stupid. 



Nov. 20, fatigued in 18 min. ; active, ate fairly well. 



Nov. 21, fatigued in 14 min.; would not eat. 



Nov. 22, fatigued in 8 min. ; stupid. 



Nov. 23, fatigued in 6 min. ; male flew across the room only two 



times. 



Nov. 25, neither would fly. 



Pair No. 2. 



Nov. n, fatigued in n min. 



Nov. 12, fatigued in 10 min. 



Nov. 13, fatigued in 7 min. ; male indisposed. 



Nov. 14, fatigued in 11 min. 



Nov. 16, fatigued in 12 min. 



Nov. 17, fatigued in 15 min. 



Nov. 18, fatigued in n min. 



Nov. 19, fatigued in 14 min. 



Nov. 20, fatigued in 12 min. 



Nov. 21, fatigued in 16 min. 



Nov. 22, fatigued in 19 min. 



Nov. 23, fatigued in 14 min. 



both ate. 



male especially lively, 

 both restless, 

 ate very little, 

 not very active, 

 restless, 

 lively, 

 refused food. 



Nov. 25, fatigued in 9 min. ; male did not fly. 



Nov. 26, fatigued in 12 min. ; stupid. 



Nov. 28, fatigued in 4 min. ; male would not fly. 



Nov. 29, fatigued in 8 min. ; very stupid. 



Nov. 30, fatigued in 7 min. 



Dec. 2, neither would fly. 



