Table of Contents
ISRN Zoology
Volume 2011, Article ID 725180, 17 pages
Research Article

Four New Species of Dryocosmus gallwasps from Taiwan (Hymenoptera: Cynipidae: Cynipini)

1Pest Diagnostic Laboratory, Plant Protection & Soil Conservation Directorate, Governmental Office for County Vas, Ambrozy Setany 2, 9762 Tanakajd, Hungary
2Department of Entomology, National Chung Hsing University, Taichung 40227, Taiwan
3Institute of Evolutionary Biology, University of Edinburgh, King’s Buildings, West Mains Road, Edinburgh EH9 3JT, UK

Received 11 January 2011; Accepted 27 February 2011

Academic Editors: R. Castiglia, S. P. Henzi, and T. Monnin

Copyright © 2011 George Melika et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Four new species of oak gallwasps of the genus Dryocosmus: D. pentagonalis, D. triangularis, D. carlesiae, and D. testisimilis are described from Taiwan. They induce galls on one species of Castanopsis and one species of Lithocarpus (Fagaceae). Data on the diagnosis, distribution, and biology of the four new species is given. A key for Dryocosmus species identification of Taiwan is provided. Final comments discuss the polyphyletic nature of the Dryocosmus genus, emphasizing the urgent need for its revision.