The genus Atanycolus Foerster ( Hymenoptera , Braconidae , Braconinae ) in China , with description of one new species

Th e species of the genus Atanycolus Foerster (Hymenoptera, Braconidae, Braconinae) from China are revised and six species are recognized, including one new species (A. grandis Wang & Chen, sp. n.), which is described and illustrated in this paper. Th ree species, i.e. A. crenulatus Telenga, 1936, A. lindemani Tobias, 1980 and A. sculpturatus (Th omson, 1892), are reported from China for the fi rst time. A key to species of this genus is provided.

The genus Atanycolus Foerster (Hymenoptera, Braconidae, Braconinae) in China, with description of one new species

Introduction
Atanycolus Foerster is a cosmopolitan genus with 59 described species (Yu et al. 2007).Most of species are less than 10.0 mm long.Th ey are ectoparasitoids of the larvae of various species of wood and bark-boring beetles (Coleoptera: Buprestidae, Cerambycidae and Scolytidae), many of which are notorious pests of coniferous and broadleaved trees.Th e chemical control of these pests is diffi cult because they live under bark.Th erefore, the species of this genus may be important natural control agents of many of these beetles.
Th is is a part of an on-going study of the subfamily Braconinae (Hymenoptera: Braconidae) of China (Wang et al. 2003a(Wang et al. , b, c, d, 2004(Wang et al. , 2006a(Wang et al. , b, c, d, 2007(Wang et al. , 2008)).In this study, six species of genus Atanycolus were found to occur in China, of which one species is new to science (A.grandis sp.n.) and three species are new to China (A. crenulatus Telenga, 1936, A. lindemani Tobias, 1980and A. sculpturatus (Th omson, 1892)).Th e new species is described and illustrated below.A key to the Chinese species of the genus is provided.Th e examined specimens are deposited in the Parasitic Hymenoptera Collection, Zhejiang University, Hangzhou, China (ZJUH), Institute of Plant Physiology and Ecology, the Chinese Academy of Sciences, Shanghai (SIPPE) and the Institute of Zoology, the Chinese Academy of Sciences, Beijing (IZBJ).
Th e morphological terminology used in this paper follows that of van Achterberg (1979), Harris (1979) and Quicke (1987).All descriptions and measurements were made under a Leica MZ 12.5 stereomicroscope (Wetzlar, Germany), and photos taken by a digital camera (Q-Imaging, Micropublisher 3.3 RTV) attached to a Leica MZ APO stereomicroscope (Wetzlar, Germany) using Synoptics Auto-Montage version 5.0 software.Length of body more than 10 mm; ocellar triangular area with blackish spot (Fig. 2); wing membrane infuscated (Fig. 5); third metasomal tergite with strongly raised area antero-laterally (Fig. 7 Length of body 10.0-14.0mm, fore wing 8.0-12.0mm, ovipositor sheath 10.0-12.5 mm.Head.Antenna with 68 segments; terminal fl agellomere tapering apically, approximately 1.4 times longer than basal width; fi rst fl agellomere parallel-sided but weakly fl ared basally, 1.2 and 1.5 times longer than the second and third ones, respectively; the latter 1.4 times longer than its maximum width; median fl agellomeres as long as its maximum width; transverse medial clypeal carina with a row sparse long setae; height of clypeus: inter-tentorial distance: tentorio-ocellar distance = 5: 9: 6; face with sparse long setae, width of face: width of head: maximum length of eye in dorsal view = 18: 34: 19; frons strongly impressed medially; shortest distance between posterior ocelli: diameter of posterior ocellus: shortest distance between posterior ocellus and eye = 2.5: 2.0: 9; vertex smooth and shiny with dense setae.

Key to species of genus
Mesosoma.Length of mesosoma 1.8 times as long as its maximum height, smooth and shiny with sparse long setae; notauli deeply impressed anteriorly and shallowly posteriorly, with sparse short setae along entire length; scutellar sulcus relatively narrow and deep, and distinctly crenulate; metanotum with strongly raised area medially; propodeum smooth, with sparse setae, but relatively densely and long setose laterally.