Journal of Hymenoptera research.

v. 7-8 1998-99

Journal of Hymenoptera research.

v. 5-6 1996-97

Catalog of hymenoptera in America north of Mexico / prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein ... [et al.].

vol. 3

Catalog of hymenoptera in America north of Mexico / prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein ... [et al.].

vol. 2

Essay on the indigenous fossorial Hymenoptera : comprising a description of all the British species of burrowing sand wasps contained in the metropolitan collections, with their habits as far as they have been observed /

Includes index.

Ants, bees, and wasps : a record of observations on the habits of the social hymenoptera /

Includes bibliographical references (p. [xvii]-xix) and index.

[Collected papers: Hymenoptera]

Bradley collection.

[Collected papers: Hymenoptera]

Bradley collection.

The siricid wood wasps of California (Hymenoptera: Symphyta)

Mode of access: Internet.

A catalogue and reclassification of the Nearctic Ichneumonidae (Hymenoptera)

Mode of access: Internet.

Hymenoptera.

Proceedings of the Washington Academy of Sciences. v. 4, p. 117-274.

Fauna insectorum Helvetiae. Hymenoptera. Fam. Diploptera Latr. (Vespida aut.)

Issued with Schweizerische entomologische Gesellschaft. Mittheilung, Bd. VII.

The North American bees of the genus Osmia (Hymenoptera: Apoidea) /

Descriptive letterpress on versos of plates.

Cynipid galls of the Southwest (Hymenoptera, Cynipoidea); an aid to their identification.

Mode of access: Internet.

Australian hymenoptera chalcidoidea.

Caption title.