Applied Entomology and Zoology (2021) 56, 451-463

Kazunori Matsuo, Tatsuya Ide, Kaori Yara, Kiyoko Matsunaga, Naohisa Gyoutoku, Yoshimitsu Higashiura, Junichi Yukawa, Yoshihisa Abe and Seiichi Moriya (2021)
Discovery of a native host of Torymus beneficus (Hymenoptera: Torymidae), with description of a new Dryocosmus (Hymenoptera: Cynipidae)
Applied Entomology and Zoology 56 (4), 451-463
Abstract: Torymus beneficus Yasumatsu and Kamijo (Hymenoptera: Torymidae) is a native Japanese parasitoid of the chestnut gall wasp, Dryocosmus kuriphilus (Hymenoptera: Cynipidae). The known native host of T. beneficus is Andricus sp. (Hymenoptera: Cynipidae), but its entity has not been identified due to the lack of voucher specimens. During the field surveys of native host cynipids, we newly found leaf galls induced by a cynipid on Castanopsis cuspidata (Fagaceae). Morphological examination revealed that the cynipid was new to science. In this paper, we describe it as Dryocosmus murakamii Ide and Abe sp. nov. In addition, DNA analysis indicated that a Torymus species that had been reared from the galls induced by D. murakamii is identical to the early–spring strain of T. beneficus. We discuss significance of finding native host of T. beneficus.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Tatsuya Ide, Junichi Yukawa, Seiichi Moriya

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Dryocosmus kuriphilus	Chestnut (Castanea)	Japan
Torymus beneficus (parasitoid)	Dryocosmus kuriphilus	Chestnut (Castanea)	Japan