Campoplex absitus, 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 : 9-11

Campoplex absitus sp. nov.

Figs. 1–2

Material examined. Holotype: female, Shaanxi, Hanzhong Liubaxian, 20.VII.2013, Tu Binbin, No 201308253 ( ZJUH).

Description. Female ( Fig. 1 ) holotype. Body length 4.5 mm, fore wing length 3.5 mm.

Head. Antenna with 23 flagellomeres; first flagellomere 1.3× longer than second flagellomere. Face ( Fig. 2E ) granulose. Clypeus ( Fig. 2E ) granulose, slightly convex, apical margin almost truncated, thick medially. Malar space granulose, 0.45× basal width of mandible. Mandible with a very weak lamella, upper tooth slightly longer than lower tooth. Frons granulose, median carina absent. Vertex granulose. Interocellar distance ( Fig. 2F ) 1.2× ocello-ocular distance and 1.8× 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 dorsally, mat, trans-striate below. Mesoscutum ( Fig. 2G ) granulose, notauli indistinct. Scutellum and metanotum granulose. Mesopleuron ( Fig. 2B ) granulose, weakly trans-striate below tegula, speculum smooth and shiny. Metapleuron ( Fig. 2B ) granulose. Propodeum ( Fig. 2C ) with anterior transverse carina far from base, area basalis triangular, long and narrow; area superomedia granulose, polished; area petiolaris rugose; area superomedia confluent with area petiolaris, slightly depressed; all carina distinctly developed; propodeal spiracle small and round.

Wing. Fore wing ( Fig. 2A ) 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 (75°). Hind wing with nervellus slightly inclivous, intercepted at lower 0.2.

Legs. Hind femur 4.6× 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. 2H ) round in cross-section of basal 0.3, without dorso-lateral carina and lateral groove. First tergite 2.3× longer than width of postpetiole. Postpetiole and second tergite granulose, mat. Second tergite 0.9× as long as first tergite, 1.8× longer than its apical width; thyridium round, its distance from basal margin of tergite 2.0× its diameter. Third tergite 0.8× longer than its apical width. Sixth and seventh tergites without emarginations medially. Ovipositor sheath approx. 1.8× longer than hind femur, ovipositor ( Fig. 2D ) gradually upcurved.

Colour. Black. Mandible except teeth, palpi, tegula, fore and mid trochanters and trochantellus, and hind trochantellus, yellow; scape and pedicel blackish brown; fore leg yellowish brown except coxa and telotarsus brown; mid leg yellowish brown except coxa and telotarsus brown, tibia apically infuscated; hind leg with coxa and trochanter black, femur, tibia subbasally and apically, tarsus from basal 0.7 on brown, remainder of hind leg whitish yellow; metasoma entirely black.

Distribution. China (Shaanxi).

Comparative diagnosis. This species is similar to C. taenius sp. nov., but differs from the latter by having interocellar distance 1.2× ocello-ocular distance, propodeal anterior transverse carina far removed from base, fore wing external angles of second discal cell less acute (75°), and third metasomal tergite 0.8× longer than its apical width.

Etymology. Name derived from “absitus” (Latin for “remote”), because its propodeal anterior transverse carina is far removed from base of propodeum.

Figures

FIGURE 1. Campoplex absitus sp. nov., female, habitus.

FIGURE 2. Campoplex absitus 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.