File:Czechowski 1999a.pdf

Czechowski, W.; Czechowska, W. 1999a. New sites in Poland and notes on the biology of socially parasitic ants Formicoxenus nitidulus (Nyl.) and Harpagoxenus sublaevis (Nyl.) (Hymenoptera, Formicidae). Fragm. Faun. (Warsaw) 42: 1-6