ARTIFICIAL MIXED NESTS OF ANTS. 323 







one case three days, and in the other case five days, after the 

 death of their first queen. I know no adult ants that will ac- 

 cept a queen from another colony of their own species, much 

 less a queen of a genus not their own. 



Group 2. Myrmica r libra, Stcnamma fulvum and Cremasto- 

 gaster lineolata, workers of each species. 



ONE SPECIES OF CAMPONOTINE ANTS WITH ONE SPECIES 

 OF MYRMICINE ANTS. 



Group j.-- Lasius latipes with Stenamma fulvum ; workers of 

 each species. 



Group 4.-- Lasius umbratus with Stenamma fulvum ; workers 

 of each species. 



Group J. - - Lasius umbratus with Cremastogaster lineolata ; 

 workers of each species. 



Group 6. - - Formica sanguiuca with Cremastogaster lineolata ; 

 workers of each species. 



Group 7. Formica subsericea with Cremastogaster lineolata ; 

 workers of each species. 



ONE SPECIES OF CAMPONOTINE ANTS WITH TWO SPECIES OF 



MYRMICINE ANTS. 



* 



Group 8. Formica sanguinca with Stcnamma fulvum and 

 Cremastogaster lineolata ; workers of each species. 



Two SPECIES OF CAMPONOTINE ANTS WITH TWO SPECIES 



OF MYRMICINE ANTS. 



Group 9. Lasius latipes and Formica lasiodes l with Stenamma 

 fulvum and Cremastogaster lineolata ; workers of each species. 



Group 10. Camponotus pennsylvanicus and Formica sanguined 

 with Stenamma fulvum and Cremastogaster lineolata. 



ONE SPECIES OF CAMPONOTINE ANTS WITH THREE SPECIES 



OF MYRMICINE ANTS. 



Group ii. Lasius latipes with Stenamma fulvum, Myrmica 

 rubra and Cremastogaster lineolata ; workers of all four species 

 with one queen of Cremastogaster lineolata. 



1 Kindly identified for me by Dr. W. M. Wheeler. 



