@article {57,
	title = {Melanism in Bombus veteranus and B. soroeensis (Hymenoptera: Apidae) in southern Finland.},
	journal = {Notulae Entomologicae},
	volume = {66},
	year = {1986},
	pages = {49-53},
	keywords = {Aculeata, Apidae, Bombus, Bombus soroeensis, Bombus veteranus},
	author = {Pekkarinen, A. and Ter{\"a}s, I.}
}
