The genus Conotrachelus Dejean (Coleoptera, Curculionidae) in the north central United States
By: with nine plates.  By Herbert Frederick Schoof
Series: Illinois biological monographs -- v. 19, no. 3
Publisher: The University of Illinois press
Published: 1942
Place of publication: Urbana
Language: eng
Number of pages: 170
Notes: "The greater portion of the material included in this study has been taken from a thesis of the same title, submitted...for the degree of doctor of philosophy...University of Illinois, 1940.  The original material has been revised, and several additions have been made."--Pref.

Contribution from the Entomological laboratories of the University of Illinois, no. 223.

"Literature cited":  p. 144-148.