Abstract

A new species, Triclistus strobilius sp. n., belonging to the subfamily Metopiinae (Hymenoptera, Ichneumonidae), reared from Dioryctria pryeri Ragonot, D. rubella Hampson and Gravitarmata margarotana (Hein) in Liaoning province and Beijing, is reported and described. Illustrations of the new species are provided.

Highlights

  • The diagnostic characters of the genus were elucidated by Chiu (1962), Tolkanitz (1987) and Townes (1971)

  • The Palaearctic species were mainly keyed by Tolkanitz (1981, 1983, 1985 1987, 2007) and Aeschlimann (1983)

  • The Japanese species were mainly reported by Kusigemati (1971, 1980, 1987), Momoi and Kusigemati (1970) and Uchida (1932)

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Summary

Introduction

The genus Triclistus Förster 1869, belonging to the subfamily Metopiinae (Hymenoptera, Ichneumonidae), comprises 82 described species (Yu et al 2012), of which 15 are from the Oriental Region (Cameron 1897, Morley 1913, Uchida 1932, Chiu 1962, Kusigemati 1985, He et al 1996), 26 from the Eastern Palaearctic Region (Kusigemati 1971, 1980, 1987, Momoi and Kusigemati 1970, Tolkanitz 2007, Uchida 1932), 25 from the western Palaearctic Region (Aubert 1984, Cresson 1864, Tolkanitz 1981, 1983, 1987, 2007), 16 from the Nearctic Region (Barron and Bisdee 1984, Townes and Townes 1959), 8 from the Neotropical Region (Gauld et al 2002). In the study of parasitoids that attack tree borers in three forest areas of China, a new species of Triclistus has been found. Collected from cone of P. tabulaeformis Carr., 9 July 2012, Tao Li; 1 female, CHINA: Jingzhou, Hunan Province, reared from pupa of Dioryctria rubella Hampson, collected from twig of P. massoniana Lamb., 1 June 2011, Mao-Ling Sheng. Head except whitish yellow projection between antennal sockets, mesosoma, fore and mid legs, all coxae and trochanters and metasoma, entirely black.

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