Campoplex monochroma, Han & Achterberg & Chen, 2021

Han, Yuan-Yuan, Achterberg, Kees Van & Chen, Xue-Xin, 2021, The genus Campoplex Gravenhorst, 1829 (Hymenoptera, Ichneumonidae, Campopleginae) from China, Zootaxa 5066 (1), pp. 1-121 : 74-77

Campoplex monochroma sp. nov.

Figs. 51–52

Material examined. Holotype: female, Zhejiang, Lishui Fengyangshan, 9.VIII.2003, Wu Qiong, No 20042321 ( ZJUH) . Paratypes: 1 female, Guangdong, Shixing Chebaling , 25. V.2002, Xu Zaifu, No 201806185 ; 3 females, Henan, Neixiang Wangoulinchang , 11.VII. 1998, Chen Xuexin, No 985939 ; 1 female, Jilin, Fusong Donggangzhen , 30.VIII.1989, Li Lin, No 974169 ; 1 female, Neimeng, Gegentala , 16.VIII.2000, Ma Yun, No 200100852 ; 1 female, Shaanxi, Hanzhong Liubaxian , 20.VIII.2013, Tu Binbin, No 201309161 ; 3 females, Shenyang National Forest Park, 16. VII.2011, Yan Chenjin, No 201103694, 201103690, 201103695 ; 3 females, Zhejiang, Longquan Fengyangshan , 10.VIII.2003, Liu Jingxian, No 201804841, 201805167, 201804175 ; 2 females, Zhejiang, Longquan Fengyangshan , 22.VIII.1982, Song Qisheng, No 826561, 826560 ; 1 female, Zhejiang, Longquan Fengyangshan , 16.VIII.1982, Le Yanhua, No 826757 ; 1 female, Zhejiang, Qingyuan Baishanzu , 30.VII.1993, Wu Hong, No 945170 ; 1 female, Zhejiang, Suichang Jiulongshan , 18.VII.1994, Xu Zaifu, No 944491 ; 4 females, Zhejiang, Songyang , 17.VII.1994, Xu Zaifu, No 944382, 943976, 944195, 944197 .

Description. Female ( Fig. 51 ) holotype. Body length 6.2 mm, fore wing length 4.3 mm.

Head. Antenna with at least 34 flagellomeres; first flagellomere 1.15× longer than second flagellomere. Face ( Fig. 52E ) granulose-punctate. Clypeus ( Fig. 52E ) punctate, punctures larger than that on face, slightly convex, apical margin arched, thick medially. Malar space granulose, 0.5× basal width of mandible. Mandible with lamella basally, upper tooth equal to the length of lower tooth. Frons granulose, median carina absent. Vertex granulose. Interocellar distance ( Fig. 52F ) 1.5× ocello-ocular distance and 1.9× distance between median and lateral ocelli. Temple granulose, subpolished. Occipital carina evenly arched, reaching hypostomal carina above mandible base.

Mesosoma. Pronotum punctate dorsally, subpolished, trans-striate below. Mesoscutum ( Fig. 52G ) granulose punctate, becoming rugose in notaulic region anteriorly. Scutellum with sparse and minute punctures, rugose posteriorly. Metanotum rugose-punctate. Mesopleuron ( Fig. 52B ) punctate, trans-striate below tegula, speculum smooth and shiny. Metapleuron ( Fig. 52B ) punctate. Propodeum ( Fig. 52C ) with area basalis triangular, long and narrow; area superomedia granulose medially and short rugose laterally, polished; area petiolaris trans-striate; area superomedia confluent with area petiolaris, slightly depressed; all carina distinctly developed; propodeal spiracle small and oval.

Wing. Fore wing ( Fig. 52A ) areolet present and with a moderate stalk emitting 2m-cu vein from its apical part. Marginal cell short, distal part of surrounding vein 2.0× longer than proximal one. Vein 1cu-a opposite M&RS. External angles of second discal cell acute (65°). Hind wing with nervellus inclivous, intercepted at lower 0.3 of its length.

Legs. Hind femur 4.0× 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. 52H ) round in cross-section of basal 0.3, with weak dorso-lateral carina, and with a shallow groove. First tergite 2.5× longer than width of postpetiole. Postpetiole and second tergite granulose, mat. Second tergite 0.6× as long as first tergite, 0.85× its apical width; thyridium round, its distance from basal margin of tergite equal to its diameter. Third tergite 0.8× as long as its apical width. Metasoma not compressed apically. Sixth and seventh tergites without emarginations. Ovipositor sheath approx. 1.7× longer than hind femur, ovipositor ( Fig. 52D ) gradually upcurved.

Colour. Black. Mandible except teeth, palpi, fore and middle legs entirely and tegula, yellow with telotarsus brownish; scape and pedicel yellowish brown anteriorly and brown dorsally; hind coxa black, trochanter except basally, femur and tibia yellowish brown, tibia unicolorous, slightly infuscated apically, tarsus brown; metasoma entirely black with second and third segments slightly blackish brown.

Variation. First flagellomere 1.1–1.25× second flagellomere; face granulose to granulose-punctate; frons with median carina absent or present; pronotum granulose-punctate to punctate dorsally; specimens from Shenyang province with ovipositor thinner; scape and pedicel entirely brown or yellowish-brown anteriorly; specimens from Henan province with hind tibia banded.

Distribution. China (Guangdong, Henan, Jinlin, Neimeng, Shaanxi, Shenyang, Zhejiang).

Comparative diagnosis. This new species is similar to C. proportionis sp. nov., but differs from the latter by having second tergite 0.8–0.9× as long as its apical width, thyridium separated from the basal margin of tergite by its diameter, metasoma not compressed apically, malar space and frons granulose, and metanotum rugose-punctate.

Etymology. Name derived from “mono-” (Greek for “single”), and “chroma” (Greek for “colour”), because its hind tibia is unicolorous.

Figures

FIGURE 51. Campoplex monochroma sp. nov., female, habitus.

FIGURE 52. Campoplex monochroma 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.