A Revision Of Hymenopterous Insects Of The Tribe Cremastini Of America North Of Mexico (Paperback) (ISBN-13: 9781022269255)

As one of the foremost authorities on hymenopterous insects, Robert Asa Cushman's revision of the tribe Cremastini is an invaluable resource for entomologists and naturalists alike. The work includes a systematic classification, descriptions of new species, and extensive illustrations to aid in the identification of these important insects.

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