The genus Campoplex Gravenhorst, 1829 (Hymenoptera, Ichneumonidae, Campopleginae) from China Author Han, Yuan-Yuan 0000-0002-6438-7393 yyhan6@zju.edu.cn Author Achterberg, Kees Van 0000-0002-6495-4853 kees@vanachterberg.org Author Chen, Xue-Xin text Zootaxa 2021 2021-11-08 5066 1 1 121 journal article 2820 10.11646/zootaxa.5066.1.1 4299ae4b-28b1-414e-a827-a89158a63e89 1175-5326 5653939 6B3D85E9-31FE-4D08-8E15-BA8959DD1988 Campoplex collucatus sp. nov. Figs. 17–18 Material examined. Holotype : female, Shaanxi , Qingling , 8.VI.1998 , Ma Yun , No 983546 ( ZJUH ). Description. Female ( Fig. 17 ) holotype . Body length 8.0 mm, fore wing length 5.1 mm . Head. Antenna with 33 flagellomeres; first flagellomere 1.15× longer than second flagellomere. Face ( Fig. 18E ) granulose. Clypeus ( Fig. 18E ) finely granulose, slightly convex, apical margin almost truncated, blunt. Malar space granulose, 0.5× basal width of mandible. Mandible with lamella present basally, upper tooth equal to the length of lower tooth. Frons granulose, median carina absent. Vertex granulose. Interocellar distance ( Fig. 18F ) 1.2× ocello-ocular distance and 2.0× distance between median and lateral ocelli. Temple granulose, subpolished, not swollen behind eyes. Occipital carina evenly arched, reaching hypostomal carina above mandible base. Mesosoma. Pronotum granulose, subpolished, trans-striate below. Mesoscutum ( Fig. 18G ) granulose, becoming rugose in notaulic area. Scutellum and metanotum granulose. Mesopleuron ( Fig. 18B ) granulose with small punctures, punctures denser in low half, trans-striate below tegula, speculum smooth and shiny, rugose above mesopleural fovea. Metapleuron ( Fig. 18B ) granulose. Propodeum ( Fig. 18C ) granulose, with area basalis trapezoid; area superomedia granulose; area petiolaris granulose medially and rugose laterally; area superomedia confluent with area petiolaris, moderately depressed; medio-longitudinal carina weak under costula, gradually strong apically; latero-longitudinal carina absent; propodeal spiracle small and oval. FIGURE 17. Campoplex collucatus sp. nov. , female, habitus. FIGURE 18. Campoplex collucatus sp. nov. , female. A , fore wing; B , mesopleuron; C , propodeum; D , ovipositor; E , head, anterior view; F , head, dorsal view; G , mesoscutum; H , first metasomal segment. Wing. Fore wing ( Fig. 18A ) areolet present and with a short stalk emitting 2m-cu vein from its basal part. Marginal cell short, distal part of surrounding vein 2.1× longer than proximal one. Vein 1cu-a opposite of M&RS. External angles of second discal cell acute (70°). Hind wing with nervellus slightly inclivous, intercepted at lower 0.1 of its length. Legs. Hind femur 5.5× longer than wide. Inner spur of hind tibia 0.5× as long as first tarsomere of hind tarsus. Tarsal claws pectinate. Metasoma. First metasomal segment ( Fig. 18H ) round in cross-section of basal 0.3, with dorso-lateral carina and lateral groove present. First tergite 3.3× longer than width of postpetiole. Metasoma entirely granulose except petiole. Second tergite 0.7× as long as first tergite, 2.4× longer than its apical width; thyridium oval, its distance from basal margin of tergite 2.0× of its length. From third tergite on strongly compressed. Sixth and seventh tergites without emarginations medially. Ovipositor sheath approx. 1.3× longer than hind femur, ovipositor ( Fig. 18D ) gradually upcurved. Colour. Black. Mandible except teeth, scape and pedicel brown; palpi and tegula yellowish brown; fore and mid legs except coxae and telotarsus brown; hind leg coxa black, trochanter, extreme base of tibia and each tarsal segment apically brown, remainder of hind leg yellowish brown; metasoma from third tergites on laterally yellowish brown, remainder of metasoma black. Distribution. China ( Shaanxi ). Comparative diagnosis. This species is similar to C. multicinctus Gravenhorst, 1829 , but differs from the latter by having fore wing areolet emitting 2m-cu vein from its basal part, first metasomal segment shorter than hind femur, third tergite 2.0× longer than its apical width, and mandible brown except teeth. Etymology. Name derived from “collucatus” (Latin for “thin”), because this species looks thin.