354 THE GYPSY MOTH. 



except that the can contained a female whose wings were 

 removed close to the body. This trap was visited by four- 

 teen males from 10.30 A.M. to 3 P.M. 



Experiment No. 23. 



August 6. A female, with all appendages and down re- 

 moved, was suspended in a mosquito-net bag in the centre of 

 a colony in Hawke's woods, Saugus. She received no visits 

 from males up to 5 P.M. 



Experiment No. 24. 



August 6. Same place as above. At 10.45 A.M., a de- 

 nuded female was suspended in a mosquito-bar box from a 

 tree, at a height of five feet from the ground. At 5 P.M. she 

 had received no visits from males. 



Experiment No. 25. 



July 25. At 1.45 P.M., the antennae of two male moths 

 were covered with shellac varnish. This produced no ap- 

 parent effect upon the moths. The males were kept in close 

 proximity to females during the remainder of the afternoon, 

 but none of them attempted to mate. July 25. At 1.45 

 P.M., the antennae of two males were covered with a coating 

 of shellac, and the moths were then placed in a small card- 

 board box with four unfertilized females. July 26, at 7 

 A.M., the moths had not mated. 



Experiment No. 26. 



July 25. At 1.45 P.M., the antennae of a male moth, 

 which had just begun to mate with a female, were covered 

 with shellac varnish. This apparently produced no effect, 

 as the male did not leave the female until 2.20 P.M. 



Experiment No. 27. 



July 25. At 3.48 P.M., a fresh, vigorous male was 

 deprived of both fore legs and then placed on the experi- 

 mental bench near a female. The odor of the female was 

 driven towards him by the use of a fan, and he at once recog- 

 nized her presence, and at 3.51 P.M. the moths mated. 



