Torymus koreanus Kamijo, 1982

Matsuo, Kazunori, 2020, A revision of Japanese Torymus Dalman (Hymenoptera: Torymidae), Zootaxa 4758 (3), pp. 401-441 : 421-422

Torymus koreanus Kamijo, 1982

Torymus koreanus Kamijo, 1982: 508 .

Specimens examined. Holotype: ♀, emerged in April 1981 from a gall of Dryocosmus kuriphilus collected by J. H. Ko from Suweon, South Korea ( HUM) . Paratypes: 2 ♀ and 1 ♂, emerged in 1975 from galls of Dryocosmus kuriphilus collected by J. C. Paik from Suweon, South Korea ( ELKU) . Other specimens: 1 ♀, emerged on 3 April 1992 from a gall of Dryocosmus kuriphilus collected by S. Moriya from Gyeongsang–Namdo , Jinju, Korea ( ELKU) ; 1 ♂, collected by K. Takahashi on 10 April 1985 from Hikinuma , Nasushiobara, Tochigi, Japan ( HUM) ; 1 ♂, emerged on 12 April 1992 from a gall of Dryocosmus kuriphilus collected by M. Shiga from Obuse , Nagano, Japan ( ELKU) ; 2 ♀, emerged on 16 April 1992 from galls of Dryocosmus kuriphilus collected by M. Shiga from Obuse , Nagano, Japan ( ELKU) ; 1 ♀, emerged on 17 April 1992 from a gall of Dryocosmus kuriphilus collected by M. Shiga from Obuse , Nagano, Japan ( ELKU) ; 1 ♀, emerged on 19 April 1992 from a gall of Dryocosmus ku- riphilus collected by M. Shiga from Obuse , Nagano, Japan ( ELKU) ; 1 ♀, emerged on 6 April 1994 from a gall of Dryocosmus kuriphilus collected by T. Sasawaki & E. Yano from Obuse , Nagano, Japan ( ELKU) ; 2 ♀, emerged on 1 May 1996 from a gall of Dryocosmus kuriphilus collected by T. Sasawaki from Obuse , Nagano, Japan ( ELKU) ; 2 ♂, collected by H. Takada on 7 May 1965 from Kyoto, Japan ( HUM) .

Distribution. Japan (Honshu); South Korea.

Host information. This species is an ectoparasitoid of Dryocosmus kuriphilus Yasumatsu ( Hymenoptera : Cynipidae ) that induces galls on Castanea crenata Siebold et Zucc. (Fagaceae) ( Kamijo 1982; Matsuo et al. 2011) (gall photo: fig. 26d, C–106 of Yukawa & Masuda 1996).