Key to females of the species of Ambrosiodmus, North of Mexico
Robert J. Rabaglia, Stephanie A. Stephens, and Anthony I. Cognato (In Press) A Review of the Xyleborina (Coleoptera: Curculionidae: Scolytinae) in America North of Mexico, with an Illustrated Key.

Key to females of the species of Euwallacea, North of Mexico
Robert J. Rabaglia, Stephanie A. Stephens, and Anthony I. Cognato (In Press) A Review of the Xyleborina (Coleoptera: Curculionidae: Scolytinae) in America North of Mexico, with an Illustrated Key.

Key to females of the species of Xyleborinus, North of Mexico
Robert J. Rabaglia, Stephanie A. Stephens, and Anthony I. Cognato (In Press) A Review of the Xyleborina (Coleoptera: Curculionidae: Scolytinae) in America North of Mexico, with an Illustrated Key.

Key to females of the species of Xyleborus, North of Mexico
Robert J. Rabaglia, Stephanie A. Stephens, and Anthony I. Cognato (In Press) A Review of the Xyleborina (Coleoptera: Curculionidae: Scolytinae) in America North of Mexico, with an Illustrated Key.

Key to females of the species of Xylosandrus, North of Mexico
Robert J. Rabaglia, Stephanie A. Stephens, and Anthony I. Cognato (In Press) A Review of the Xyleborina (Coleoptera: Curculionidae: Scolytinae) in America North of Mexico, with an Illustrated Key.

Key to genera of female Xyleborina in America North of Mexico
Robert J. Rabaglia, Stephanie A. Stephens, and Anthony I. Cognato (In Press) A Review of the Xyleborina (Coleoptera: Curculionidae: Scolytinae) in America North of Mexico, with an Illustrated Key.

Masner and Huggert (1989) - Key to Genera in American North of Mexico (platygasterids)
Masner and Huggert's (1989) key to North American platygasterid genera previously placed in the Inostemmatinae. Without figures.

Muesebeck (1980) - Keys to Nearctic Psilus and Coptera species


Parasitoids of Fruit-Infesting Tephritidae
The following image-based identification system is offered to facilitate identification of parasitoids of fruit-infesting Tephritidae (Diptera). It is part of the larger PAROFFIT project.

Townes and Townes (1981) Serphidae (= Proctotrupidae)
This is a concatenation of the keys in Townes and Townes (1981). Keys up-to genus are presently included. No figures are presently included.

Wingless Hymenoptera
Keys wingless Hymenoptera to family. Contains links to external glossary and images. A work in progress by Katja Seltmann.

Yoder (2004) - North American Entomacis (Hymenoptera: Diapriidae)
A key to the North American species of Entomacis sensu Yoder (2004).