59 



Aviemore was introduced to a small colony of F. fusca v. fusco- 

 rufiharbis, from Whitsand Bay, on July 17th. She approached 

 the pupie but was fiercely attacked and killed the same day. 



No. 5. A similar experiment to No. 4, but the female killed 

 two workers before she was herself killed on the following day. 



Nos. 6 and 7. Two artificially deälated females from Bewdley 

 were introduced into two F. fusco-rufiharhis colonies on Jul\- 23rd, 

 and both were killed the same day. 



No. 8. July 23rd a small colony of F. fusca workers killed an 

 artificially deälated F. sanguinea female introduced the same da\-. 



No. 9. The wings were removed from a virgin F. sanguinea 

 female from Bewdle}', and she was placed in a small queenless 

 colony of F. fusca from Shotover on July 24th. She was attacked 

 by two workers, which she killed. Later she captured some 

 pupae and piled them in a corner. She injured a worker who 

 attacked her, and killed another. On the 25th all the workers 

 but one were killed, and the female was resting on the pupae 

 in a corner. 



No. 10. July 25th a virgin deälated female from Bewdley 

 was killed in two hours by F. fusca v. fi:sco-rufibarbis workers. 



No. II. July 25th a virgin deälated female from Bewdley 

 killed several F. fusco-rufibarbis workers, but was dead the next 

 day. 



No. 12. A similar female was much attacked by F. fusca v. 

 fusco-rufibarbis workers and was killed the next day. 



No. 13. August 9th a virgin deälated Bewdley female was 

 put with six workers and pupie of F. fusca v. fusco-rufibarbis. 

 She was immediately attacked and killed. 



In none of these thirteen experiments was a F. sanguinea 

 female accepted by workers of F. fusca v. fusco-rufibarbis, and 

 only in two was the female successful, in one after killing all 

 but two of the workers and in the other after killing all. In 

 every one of Wheeler's experiments with queenless nests of 

 F. glacialis, the female of F. subintegera was either killed b}' the 

 workers, or succeeded in stealing the pupie and killing all the 

 workers. 



In our more recent experiments carried out this year, even 

 more marked results were obtained 



On July 15th, 1912, Crawley placed a virgin winged female 



