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Notes On Sawflies, With Descriptions Of New Genera And Species

Guide to the Insects of Connecticut

The North American Ichneumon-Flies of the Tribe Acoconitini

The North American Ichneumon-flies Of The Tribes Labenini, Rhyssini, Xoridini, Odontomerinia, And Phytodietini

The North American Ichneumon-flies Of The Tribes Labenini, Rhyssini, Xoridini, Odontomerinia, And Phytodietini

Guide to the Insects of Connecticut

Guide to the Insects of Connecticut

Guide to the Insects of Connecticut

Japanese Sawflies In The Collection Of The United States National Museum

Holarctic Tribes Of The Ichneumon-flies Of The Subfamily Ichneumoninae (pimplinae)

On A Collection Of Tenthredinoidea From Eastern Canada

The North American Ichneumon-flies Of The Tribes Labenini, Rhyssini, Xoridini, Odontomerinia, And Phytodietini

Guide to the Insects of Connecticut

Guide to the Insects of Connecticut

Notes On Sawflies, With Descriptions Of New Genera And Species

Guide to the Insects of Connecticut

Guide to the Insects of Connecticut

Guide to the Insects of Connecticut

Studies In The Woodwasp Super Family Oryssoidea, With Descriptions Of New Species

A Report On A Collection Of Hymenoptera (mostly From California) Made By W. M. Giffard