312 



length of tlie tube, where she left it for some time. In 

 <)i'dei' to see it while she was seeking a place to hide her pi'ey, 

 I joined tw^o tnbes with the original, each successively smaller. 

 She then reversed the larva and dragged it in the same manner 

 as before to the middle of the middle-sized tube, where she left 

 it and retreated part w^ay to the original tube while she 

 rested near by. When she touched it the larva returned toward 

 the smallest of the tubes, leaving her resting. After a few 

 minutes she attacked the larva, now at the mouth of the 

 smallest tube, and attempted to drag it first in one direction 

 then in another, always holding on by her mandibles to the 

 labium of the larva. For a half hour nearly she continued 

 the struggle when she appeared to sting the larva again at the 

 throat and came to rest on the larva longitudinally in front 

 with her head toward the rear of the larva. Ten minutes 

 later the larva escaped from her at the mouth of the smallest 

 tube and retired to the farther end of the largest tul)e and then 

 returned to the middle, where she found it,, and holding on 

 hj its left antenna was dragged by the larva to the middle of 

 the smallest tube, where the larva stopped, though the 

 Holepyris attempted to pull it farther, this time by the, left 

 fintenna. Failing this, she walked slowly along the full length 

 of the larva and back, the larva giving a little jerk at either 

 extremity, then she advanced in front of the larva to the 

 end of the tube, then soon returned and was able to bring it 

 along to the extreme end, but soon it jerked back a little 

 ivhen she walked to its full length again. 



All these things took about an hour and ut .") ]i. m. the 

 observations were suspended. 



At 4 p. m. Sept. 15, one egg had been laid, placed longi- 

 tudinally on the dorsum of the ninth abdominal segment. 



By Sept. 18, no other eggs laid on a new larva placed with 

 her. The egg previously laid had dried up. The larva wqth 

 the female had shrivelled up from her feeding. ' Placed with 

 two fi-csh larva in a tube she attacked both, stinging them, 

 and fed upon the leg of one of them, this time the base of the 



