Skip to Main Content
A life history study of the ash seed weevils, Thysanocnemis bischoffi Blatchley and T. Helvola leconte (Coleoptera: curculionidae)Author(s): Jack H. Barger; Ralph H. Davidson
Source: The Ohio Journal of Science. 67(2): 123-127.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: Download Publication (1.0 MB)
DescriptionA life history study was made of the ash seed weevils, Thysanocnemis bischoffi Blatchley and T. helvola LeConte. Over-wintering occurs as larvae in ash seeds or in soil, with adults appearing in July and August. Adults soon deposit eggs within ash seeds, where larval development occurs. Only one generation per year was observed for each species.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBarger, Jack H.; Davidson, Ralph H. 1967. A life history study of the ash seed weevils, Thysanocnemis bischoffi Blatchley and T. Helvola leconte (Coleoptera: curculionidae). The Ohio Journal of Science. 67(2): 123-127.
- Nutritional and defensive chemistry of three North American ash species: possible roles in host performance and preference by emerald ash borer
- Electrophysiological response and attraction of emerald ash borer to green leaf volatiles (GLVs) emitted by host foliage
- Host range of the emerald ash borer (Agrilus planipennis Fairmaire) (Coleoptera: Buprestidae) in North America: Results of multiple-choice field experiments
XML: View XML