Ants (Hymenoptera: Formicidae) of Alberta: A key to species based primarily on the worker caste
Siricidae (Hymenoptera: Symphyta: Siricoidea) of the Western Hemisphere
Bees of the Genus Dufourea Lepeletier (Hymenoptera: Halictidae: Rophitinae) of Canada*
Leafcutter and Mason Bees of the Genus Megachile Latreille (Hymenoptera: Megachilidae) in Canada and Alaska1
Identification Atlas of the Vespidae (Hymenoptera, Aculeata) of the northeastern Nearctic region
The Bee Genera of Eastern Canada
