Rau — Sexual Selection Experiments in Cecropia Moth. 305 



Object. — To test the mating ability of a one-antennaed 

 male. 



Results. — ^June 18. No mating in the 3 days." 



Experiment 70.— June 16, 6 :00 P. M. 



5 248. Age day 1:00 hour. 



^244. A stray; history unknown; one-half of each antenna 

 removed. 



Object, — To again see if the removal of one-half of the 

 antennae will hinder mating. 



Results. — June 18. The pair found in copulo. 



Experiment 71. — June 16. 



$ 235. History unknown; both antennae removed. 

 (^ 240. History unknown. 



Object. — To ascertain if the removal of the antennae 

 of the female will hinder mating. 



Results. — ^June 17. The pair found in copulo. 



Experiment 72.— June 16, 6:00 P. M. 



(^ 241. History unknown. One-half of each aatenna removed. 

 $ 222. Age 2 days 5:20 hours. 



Object. — To ascertain if the absence of the distal half 

 of the antennae of the male will hinder mating. 



Results. — June 17. In copulo. 



Experiment 73.— June 17, 8:00 P. M. 



$ 2&4. Age day 8:00 hours. 



c? 247. History unknown. One-half of each antenna removed. 



Object. — Same as Experiment 72. 



Results. — June 18. The pair found in copulo. 



