Division of labor in Ponera pennsylvannica (Formicidae: Ponerinae). 

Pratt, S.C. , P. Calabi, and N.F. Carlin

Insectes Sociaux 41: 43-61

http://www.public.asu.edu/%7Espratt1/Publications/Pratt%201994a.pdf

1994

Publication

1994