Torymus itoi Matsuo, 2010

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

Torymus itoi Matsuo, 2010

Torymus itoi Matsuo, 2010: 54 .

Specimens examined. Type material. Holotype: ♀, emerged on 27 July 2007 from a gall of Paratephritis fukaii on Farfugium japonicum collected by J. Yukawa, K. Tsuda and K. Matsuo on 20 July 2007 from Daizaka, Kinpo, Minamisatsuma, Kagoshima, Japan ( ELKU, Type No. 3291). Paratypes: 2 ♀ and 4 ♂, same data as the holotype ( ELKU); 7 ♀ and 2 ♂, emerged on 19 and 21 June 1944 from galls of Paratephritis fukaii on Farfugium japonicum collected by Syusiro Ito from Kyudai–Kasuya–Ensyurin (= the Research Institute of Kyushu University Forests, Sasaguri, Fukuoka, Japan.) ( ELKU); 1 ♀, emerged on 28 July 2007 from a gall of Paratephritis fukaii on Farfugium japonicum collected by J. Yukawa, K. Tsuda and K. Matsuo on 20 July 2007 from Daizaka, Kinpo, Minamisatsuma, Kagoshima, Japan ( ELKU); 1 ♀ and 2 ♂, emerged on 6 November 2008 from a gall of Paratephritis fukaii on Farfugium japonicum collected by T. Yamaguchi on 22 October 2008 from Mt. Kinpo, Kinpo, Minamisatsuma, Kagoshima, Japan ( ELKU). Other specimens: 4 ♀, emerged on 13 April 2010 from galls of Paratephritis fukaii on Farfugium japonicum collected by J. Yukawa, M. Tokuda, T. Kikumura, and K. Matsuo on 30 March 2010 from Tateyama, Chiba, Japan ( BLKU); 2 ♀, emerged on 18 September 1955 from galls of Paratephritis takeuchii on Ligularia fischeri collected by S. Ito from Mt. Hiko, Soeda, Fukuoka, Japan ( HUM).

Distribution. Japan (Honshu, Kyushu).

Host information. Torymus itoi is a parasitoid of Paratephritis fukaii Shiraki ( Diptera : Tephritidae ) on Farfugium japonicum (L.) Kitam. ( Asteraceae ) (gall photo: fig. 27a, D–085 of Yukawa & Masuda 1996) and P. takeuchii Ito on Ligularia fischeri (Ledeb.) Turcz. (Asteraceae) (gall photo: D–073 of Yukawa & Masuda 1996). Paratephritis takeuchii is newly recorded as a host insect of T. itoi .