Campoplex cyclus, 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 : 38-39

Campoplex cyclus sp. nov.

Figs. 23–24

Material examined. Holotype: female, Xinjiang, Lugexian Shuikuxiang, 11.VIII.2002, Hu Hongying, No 20037129 ( ZJUH).

Description. Female ( Fig. 23 ) holotype. Body length 4.8 mm, fore wing length 3.5 mm.

Head. Antenna with at least 14 flagellomeres (apical segments missing); first flagellomere 1.35× longer than second flagellomere. Face ( Fig. 24E ) granulose. Clypeus ( Fig. 24E ) mat, not convex, apical margin truncated, sharp. Malar space granulose, 0.5× basal width of mandible. Mandible with a very weak lamella, with upper tooth longer than lower tooth. Frons granulose, median carina absent. Vertex granulose. Interocellar distance ( Fig. 24F ) 1.5× ocello-ocular distance and 1.7× distance between median and lateral ocelli. Temple swollen behind eye, mat. Occipital carina evenly arched, reaching hypostomal carina slightly above mandible base.

Mesosoma. Pronotum granulose dorsally with minute punctures, trans-striate below. Mesoscutum ( Fig. 24G ) and scutellum granulose-punctate. Metanotum granulose. Mesopleuron ( Fig. 24B ) granulose-punctate, trans-striate below tegula, speculum smooth and shiny. Metapleuron granulose with sparse punctures. Propodeum ( Fig. 24C ) granulose; area basalis triangular; area superomedia granulose; area petiolaris trans-striate; area superomedia confluent with area petiolaris, slightly depressed medially; all carina strong; propodeal spiracle small and oval.

Wing. Fore wing ( Fig. 24A ) areolet present and with a short 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 (70°). Hind wing with nervellus inclivous, intercepted at lower 0.2 of its length.

Legs. Hind femur 4.0× longer than wide. Inner spur of hind tibia 0.48× as long as first tarsomere of hind tarsus. Tarsal claws pectinate, its teeth weak.

Metasoma. First metasomal segment ( Fig. 24H ) round in cross-section of basal 0.3, with dorso-lateral carina and lateral groove. Postpetiole and second tergite granulose. Second tergite 0.7× as long as first tergite, as long as its apical width; thyridium round, its distance from basal margin of tergite equal to its diameter. Third tergite 0.6× as long as its apical width. Sixth and seventh tergites without emarginations medially. Ovipositor sheath approx. 1.5× longer than hind femur, ovipositor ( Fig. 24D ) gradually upcurved.

Colour. Black. Mandible except teeth, palpi and tegula, fore, mid and hind trochantellus, yellow; scape and pedicel blackish brown; coxae blackish brown; remainder of fore leg yellowish brown with apical tarsus brown; mid trochanter, femur, apical of tibia and apical tarsus brownish, remainder of mid leg yellowish brown; hind trochanter, femur, subbase and apex of tibia and tarsus from basal tarsi 0.5 on blackish brown, with tibia medially and basal tarsi 0.5 yellowish brown; metasoma entirely black.

Distribution. China (Xinjiang).

Comparative diagnosis. This species is similar to C. lobatus sp. nov., but differs from the latter by having apical margin of clypeus not thick medially, mesopleuron granulose-punctate, propodeal area superomedia granulose, latero-longitudinal carina strongly developed, vein 1cu-a opposite M&RS, second metasomal tergite as long as its apical width, and metasoma entirely black.

Etymology. Name derived from “cyclus” (Latin for “circle”), because its head is round in anterior view.

Figures

FIGURE 23. Campoplex cyclus sp. nov., female, habitus.

FIGURE 24. Campoplex cyclus 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.