Xanthopimpla trias Townes & Chiu, 1970

Watanabe, Kyohei & Matsumoto, Rikio, 2021, Revision of the genus Xanthopimpla Saussure, 1892 (Hymenoptera, Ichneumonidae, Pimplinae) from Japan, Deutsche Entomologische Zeitschrift 68 (2), pp. 269-297 : 269

publication ID	https://dx.doi.org/10.3897/dez.68.69768
publication LSID	lsid:zoobank.org:pub:7E2958A3-5E87-4218-8689-F9D2C98A0E24
persistent identifier	https://treatment.plazi.org/id/21C09C77-847D-5A12-A5C4-D8F0ADA0DE83
treatment provided by	Deutsche Entomologische Zeitschrift by Pensoft
scientific name	Xanthopimpla trias Townes & Chiu, 1970
status

Treatment

Figs 2G View Figure 2 , 4M View Figure 4 , 5N View Figure 5

Xanthopimpla trias Townes & Chiu, 1970: 242.

Xanthopimpla sp. B: Watanabe, 2011: 17.

Comparative diagnosis.

This species belongs to the trunca species group sensu Townes and Chiu (1970). This species can be distinguished from other species of this group by the following combination of character states: propodeum without carinae, except for apical part of lateral longitudinal carina and small stub of lateromedian longitudinal carina (Fig. 4M View Figure 4 ); T I, IV and VII each with black band or sometimes T I and T III with two black spots (Fig. 2G View Figure 2 ); ovipositor sheath 0.45 × length of hind tibia.

Materials examined.

Type series: Taiwan: 1 F (paratype), Koshun , 25 Apr-25 May 1918, J. Sonan, K. Miyake & M. Yoshino leg. ( TARI) . Vietnam: 1 F (paratype), Ban Me Thuot , 16-18 May 1960, L. W. Quate leg. ( AEIC). Non-types: Japan: [Honshu] 1 F (DNA-Pol-851), Nara Pref., Nara City, Kasugayama, 20 May 2020, R. Matsumoto leg. ( OMNH); 1 F (DNA-Pol-557), Nara Pref., Kashihara City, Amakashino-oka, 12 Jan 2017, R. Matsumoto leg. ( OMNH); 1 F (DNA-Pol-826), ditto, 14 Jan 2020 ( OMNH); 1 F (DNA-Pol-827), Osaka Pref., Osaka City, Hattori-ryokuchi Park, 5 Feb 2020, R. Matsumoto leg. ( OMNH). [Kyushu] 4 F & 1 M, Kumamoto Pref., Asagiri Town , Uenishi, 24 Aug 2012, R. Matsumoto leg. ( OMNH); 1 F, Kagoshima Pref., Kagoshima City, Inari-cho, 16 Jul 1964, K. Hashimoto leg. ( SEHU). [Ryukyu Isls.] 1 M, Kagoshima Pref., Yakushima Is., Shiratani, 6 May-20 Jun 2000, T. Murata leg. (MT) ( MU); 1 F, ditto, 21 Jun-9 Jul ( MU); 2 M, ditto, 10 Jul-8 Aug ( MU); 1 F, Amamioshima Is., Mt. Yui , 28 Sep-28 Oct 2001, T. Muroi & Y. Maeda leg. ( MU); 1 F, Okinawa Pref., Okinawa Is., Kunigami Vil., Benoki-dam, 22 May 2007, S. Fujinuma leg. ( KPMNH); 1 F, Okinawa Pref., Okinawa Is., Kunigami Vil., Yona, 29 Jun 2013, M. Ito leg. ( KPMNH) . Vietnam: 1 M, Vinh Phuc, Tam Dao National Park , 8 May 1998 R. Matsumoto leg. ( OMNH); 1 F, ditto, 28 Apr 2000 ( OMNH) .

Distribution.

Japan (Honshu, Kyushu, Yakushima Is., Amamioshima Is. and Okinawa Is.). Outside Japan, this species has been recorded from India, Nepal, Taiwan, Thailand and Vietnam ( Yu et al. 2016).

Bionomics.

In Japan, adults were collected in January, February and from May to October. Although a small number of individuals have been observed, winter is passed in the stage of adult in Honshu (Fig. 8D View Figure 8 ). The wintering adults were resting under the leaf of broad-leaved, evergreen trees, such as Quercus glauca and Camellia japonica . All wintering specimens observed were female exclusively. Host is unknown.

Remarks.

This is the first record of this species from Japan. No characteristics unique to the Japanese population were detected.