Campoplex atricrus, 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 : 28-29

Campoplex atricrus sp. nov.

Figs. 15–16

Material examined. Holotype: female, Xinjiang, Hongjialike, 10.VII.1992, He Junhua, No 914155 ( ZJUH) . Paratypes: 1 female, 3 males, Xinjiang, Hongjialike, 10.VII.1992, He Junhua, No 914128, 914125, 914142, 914126 .

Description. Female ( Fig. 15 ) holotype. Body length 3.6 mm, fore wing length 3.1 mm.

Head. Antenna with 25 flagellomeres; first flagellomere 1.2× longer than second flagellomere. Face ( Fig. 16E ) granulose. Clypeus ( Fig. 16E ) granulose, slightly convex, apical margin almost truncated, blunt. Malar space granulose, 0.7× basal width of mandible. Mandible with a very weak lamella, upper tooth equal to the length of lower tooth. Frons granulose, median carina absent. Vertex granulose. Interocellar distance ( Fig. 16F ) 1.2× ocello-ocular distance and 1.8× distance between median and lateral ocelli. Temple granulose, subpolished, slightly swollen behind eyes. Occipital carina evenly arched, reaching hypostomal carina above mandible base.

Mesosoma. Pronotum rugulose-punctate dorsally, subpolished, trans-striate below. Mesoscutum ( Fig. 16G ) granulose, notauli absent. Scutellum granulose and rugose posteriorly. Metanotum granulose. Mesopleuron ( Fig. 16B ) rugose-punctate dorsally, granulose-punctate ventrally, trans-striate below tegula, speculum rugose. Metapleuron ( Fig. 16B ) granulose. Propodeum ( Fig. 16C ) with area basalis trapezoid; area superomedia granulose, mat; area petiolaris trans-striate; area superomedia confluent with area petiolaris, not depressed; all carina distinctly developed; propodeal spiracle small and round.

Wing. Fore wing ( Fig. 16A ) areolet present and with a short stalk emitting 2m-cu vein from its apical part. Marginal cell short, distal part of surrounding vein 1.8× longer than proximal one. Vein 1cu-a opposite M&RS. External angles of second discal cell acute (70°). Hind wing with nervellus vertical, intercepted at lower 0.3.

Legs. Hind femur 4.5× longer than wide. Inner spur of hind tibia 0.57× as long as first tarsomere of hind tarsus. Tarsal claws slightly pectinate basally, its teeth weak.

Metasoma. First metasomal segment ( Fig. 16H ) round in cross-section of basal 0.3, dorso-lateral carina and lateral groove present. First tergite 2.2× longer than width of postpetiole. Postpetiole and second tergite granulose, mat. Second tergite 0.8× as long as first tergite, equal to its apical width; thyridium round, its distance from basal margin of tergite equal to its diameter. Third tergite 0.7× as long as its apical width. Sixth and seventh tergites without emarginations medially. Ovipositor sheath approx. 1.0× longer than hind femur, ovipositor ( Fig. 16D ) gradually upcurved.

Colour. Black. Mandible except teeth yellowish brown; palpi brown; tegula yellowish brown; scape and pedicel black; fore leg yellowish brown except coxa, trochanter, femur basal-ventrally and telotarsus blackish brown; mid leg black except trochantellus and tibia medially yellowish brown; hind leg black except trochantellus apically, femur extreme basally and tibia medially yellowish brown; metasoma entirely black.

Variation. Pronotum granulose to rugulose-punctate, mesopleuron granulose-punctate to rugose-punctate, propodeal area petiolaris rugose to trans-striate, lateral carina present or absent.

Male. Propodeal area superomedia narrow, area superomedia rugulose; otherwise similar to female.

Distribution. China (Xinjiang).

Comparative diagnosis. This species is similar to C. granulosus sp. nov., but differs from the latter by having apical margin of clypeus slightly arched, malar space 0.7× basal width of mandible base, pronotum rugulosepunctate dorsally, mesopleuron rugose-punctate dorsally, mid leg and hind leg largely black, and metasoma entirely black.

Etymology. Name derived from “atrum” (Latin for “black”) and “crus” (Latin for “leg”), because its mid and hind legs are largely black.

Figures

FIGURE 15. Campoplex atricrus sp. nov., female, habitus.

FIGURE 16. Campoplex atricrus 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.