File:Holmquist, A.M. 1928. Notes on the life history and habits of the mound-building ant, Formica ulkei (10.2307@1929544).pdf

Summary
Holmquist, A.M. 1928. Notes on the life history and habits of the mound‐building ant, Formica ulkei Emery. Ecology, 9: 70-87.