54 Bulletin American Museum of Natural History. [Vol. XXII, 



act of fighting, while one of them was being simultaneously pulled by an in- 

 certa. At 5 p.m. one of the females (No. 2) was found dead in a corner of the 

 nest. At 6 p.m. two more females (Nos. 4 and 5) were introduced and were 

 soon being pulled about the nest by the incerta workers. They were also set 

 upon by female No. 3, who fought them with greater animosity than she had 

 displayed towards Nos. i and 2. At 6.30 p.m. all three females were fighting 

 one another, while a single incerta was tugging one of them (No. 4) by her 

 antenna. Then another incerta fell upon the same female and while she was 

 being stretched out between them, one having hold of her antenna, the other 

 of her hind leg, females Nos. 3 and 5 came up and savagely bit at nearly every^ 

 part of her body. Then the two free females faced about and fought with each 

 other, even making use of their formic acid batteries. 8 p.m. Fighting still 

 continued among the three females but none of them seemed to be injured. 

 July 10, 6 A.M. One of the females (No. 4) was dead in a corner of the nest. 

 Nos. 3 and 5 were still fighting but were not molested by the incerta workers. 

 July II, 4.20 P.M. Two more females (Nos. 6 and 7) were introduced. At 

 5.30 P.M. female No. 3 was fighting No. 7, which had been pinioned by an in- 

 certa. Female No. 6 was ingratiating herself with the callows and workers. 

 July 12, 11.30 A.M. Female No. 3 had lost one antenna during the night; 

 the remaining females (5, 6, and 7) were at peace with one another. At 4.30 

 P.M. three more females (Nos. 8, 9 and 10) were introduced, so that there were 

 seven altogether. July 13, 8 a.m. Two more females were dead (Nos. 9 and 

 10). One of them was being carried about by an incerta worker. Another 

 died at 1.45 p.m. July 14 and 15 no struggling of the females either with one 

 another or with the incerta was observed. Workers of incerta were hatching in 

 great numbers. July 16, i p.m., 9 dealated and 8 winged femiles were in- 

 troduced, making altogether 21 females in the nest. July 17, 7 40 a.m., all 

 these females were alive and in good condition. There were no hostilities. 

 Even the wings were unruffled. July 18, 7 a.m., 6 dealated females were dead 

 and had been deposited in the light chamber. There was some pulling of the 

 remaining females by the workers. A few of the former had lost some or all 

 of their wings. In some the tips of the wings had been torn off, indicating 

 hostilities. 3.30 p.m. One of the dealated females was being pulled by three 

 incerta while another female was trying to saw off her gaster. Thereupon there 

 was a struggle between two other females. In the light chamber some of the 

 winged individuals were quietly eating sugar while the remaining dealated 

 females were feeding and licking the callows or brooding over the cocoons. 

 Many male incerta began to hatch. July 19, 7 30 a.m. There were a few 

 struggles between females and workers. Both the incerta males and winged 

 consocians females were very restless and ran about the light chamber. At 

 12 m. three dealated females were fighting with one another like three angry 

 viragos. July 20. There were no dead females. The winged individuals still 

 tended to congregate in the light chamber even when they had lost all but the 

 basal portion of their wings, while the dealated individuals stuck to the brood 

 and lavished their attention on the callows and any adult workers that seemed 

 inclined to be licked and to exchange ingluvial food. There were no important 

 changes in the nest during July 21 and 22. July 23, i p.m. A single dealated 

 female was found dead on the refuse heap. During July 24 to 26 perfect amity 

 pervaded the nest. On the latter date, when I was compelled to close the 



