MAURICE COLE TANQUARY. 



about 75 workers, one male and many pupae of F. subsericea. These 

 subsericea are all very large individuals. 



The workers attack her fiercely when she is in the passageway. Some pull her 

 toward the dark chamber while some pull the other way. They finally get 

 her into the dark chamber where six or seven attack her at once. 



12.00 M. She is in the dark chamber, workers still attacking her. 



1.30 P.M. She is on the sponge in the dark chamber and is motionless. One 

 worker is holding her by a middle leg, three others are licking her. 



1.35 P.M. The one worker has let go her hold and four others are licking her. 

 She seems to be dead. 



2.30 P.M. The queen is dead. I change the light so as to make the other 

 chamber the dark one. 



4.00 P.M. They have moved the dead queen and the pupae into the other 

 chamber. I change the light again. 



4.30 P.M. They again move the dead queen. I change the light again and when 

 about two thirds of the workers are in the other chamber I block the passage- 

 way, leaving about two dozen workers, the dead queen and most of the 

 pupae on one side. I then place in another obscurii>entris queen with these. 

 They attack her also. 



4.45 P.M. Two workers are holding her by the legs and two are licking her. 



6.00 P.M. Four workers are holding her by the legs. 



August 19 8. 20 A.M. Two workers holding her, one by a leg and one .by an 

 antenna. 



11.45 A.M. Two workers holding her. 



2.15 P.M. The two workers still holding her. 



3.00 P.M. The queen is dead. I remove the plug and let all but twelve of the 

 workers escape into the other chamber and then replace the plug. 



3.50 P.M. I place in another queen with the twelve workers; they attack her. 

 She does not attempt to bite them except when a worker gives her an un- 

 usually painful jerk or bite. 



4.00 P.M. One worker is licking her and one holding her. 

 August 20 8.00 A.M. One worker holding her by the leg. 



2.00 P.M. Three workers standing near her; none holding her. 



6.00 P.M. Two workers holding her. 

 August 21 ii. oo A.M. The queen is standing alone. 

 August 22 n.oo A.M. She is standing with three workers; they do not attack her. 



5.30 P.M. Two workers holding her. 



August 23 9.00 A.M. Not attacking her this morning; two workers staying with 

 her. 



2.00 P.M. Still standing with two of the workers. 



Sept. 10. I have examined this nest several times every day 

 since August 23 and have never seen the queen attacked. There 

 are now ten workers and a number of larvae and pupae in the nest, 

 and the queen stays with them all the time exactly as though 

 she were their own. 



The other experiments with queens of F. obscuriventris may 

 be summarized as follows: 



