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1 January 2013 Description of Two New Species of Dryocosmus (Hymenoptera: Cynipidae: Cynipini) Inducing Galls on the Strictly Asian Subgenus Cyclobalanopsis of the Genus Quercus, with a Key to Species of Dryocosmus in East Asia
Tatsuya Ide, Nakatada Wachi, Yoshihisa Abe
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Abstract

Two new species of Dryocosmus (Hymenoptera: Cynipidae: Cynipini), D. sefuriensis Ide, Wachi et Abe, sp. nov. and D. sakureiensis Ide, Wachi et Abe, sp. nov., are described from Japan. A key to species of Dryocosmus in East Asia is given. Although the members of Dryocosmus have been known to induce galls on the subgenus Quercus of the genus Quercus and the genera Castanea, Castanopsis, Chrysolepis, and Lithocarpus of Fagaceae, this is the first record of this gall wasp genus from the strictly Asian subgenus Cyclobalanopsis of the genus Quercus. The discovery of two new species of Dryocosmus associated with Q. (C.) acuta suggests the exceptionally diverse host range of Dryocosmus and the species richness of Cynipini on this plant subgenus in Asia.

©2013 Entomological Society of America
Tatsuya Ide, Nakatada Wachi, and Yoshihisa Abe "Description of Two New Species of Dryocosmus (Hymenoptera: Cynipidae: Cynipini) Inducing Galls on the Strictly Asian Subgenus Cyclobalanopsis of the Genus Quercus, with a Key to Species of Dryocosmus in East Asia," Annals of the Entomological Society of America 106(1), 18-25, (1 January 2013). https://doi.org/10.1603/AN12050
Received: 1 May 2012; Accepted: 18 October 2012; Published: 1 January 2013
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KEYWORDS
Asia
evergreen tree
Fagaceae
oak gall wasp
species richness
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