Reference
Elva J.H. Robinson, A. Tofilsk, Francis L.W. Ratnieks (2008): The use of native and non-native tree species for foraging and nesting habitat by the wood-ant Formica lugubris (Hymenoptera: Formicidae). – Myrmecological News = Myrmecologische Nachrichten – 011: 1 - 7.