Campoplex difformis ( Gmelin, 1790 )

Giovanni, Filippo Di, Scaramozzino, Pier Luigi, Loni, Augusto & Lucchi, Andrea, 2021, Taxonomic revision of the Campoplex difformis group (Ichneumonidae, Campopleginae), with particular reference to species of economic importance, European Journal of Taxonomy 740, pp. 1-35 : 17-21

Campoplex difformis ( Gmelin, 1790)

Figs 4D , 5D , 7B , 9B , 10B , 14B , 16

Ichneumon difformis Gmelin, 1790: 2720 .

Material examined

GERMANY • 4 ♀♀; ZSM .

Description

Female

MEASUREMENTS. Body length 6.8–7.7 mm; fore wing length 4.8–5.5 mm.

HEAD. Face about 0.75–0.85 × as high as wide. Malar space 0.5–0.6 × width of mandibular base. Gena 0.8 × as long as eye (maximum width, seen laterally); temple about 0.5 × as long as eye (seen dorsally), weakly narrowed behind eye, imaginary lines connecting outer side of eye and temple intersect at the level of the scutellum. OOD 0.55 × distance between lateral ocelli. Mandibular teeth subequal. Clypeus 0.5 × as high as wide, not produced in profile medially, matt and coriaceous, its apical margin sharp and gently rounded. Face and frons granulate and matt. Vertex and temples coriaceous and subpolished. Flagellum in examined specimens with 33 segments, flagellomeres in apical quarter about 0.7–0.8 × as long as wide.

MESOSOMA. Pronotum medio-ventrally with longitudinal striae, dorsally coriaceous. Epomia indistinct. Mesoscutum and scutellum granulate and matt, scutellum without lateral carinae. Mesopleuron coriaceous and matt, with shallow and scattered punctures, especially on antero-ventral half; speculum smooth, anteriorly with fine longitudinal striae. Epicnemial carina only slightly sinuate subventrally, ventrally slightly raised, in middle without notch and not produced into lobes. Metapleuron coriaceous and matt. Fore wing with areolet small and petiolate, 2m-cu beyond its middle; 1cu-a opposite M&RS. Hind wing with proximal abscissa of CU 5.5 × as long as cu-a, distal abscissa of CU unpigmented. Hind femur 4.5 × as long as its maximum width, longer inner tibial spur about 0.5–0.6 × as long as hind basitarsus. Propodeum with area basalis rectangular, about 0.4 × as wide as area superomedia; area superomedia large, about 1.8 × as wide as long, coriaceous and matt, relatively strongly depressed from anterior margin and open posteriorly. Area petiolaris clearly depressed and with irregular transverse striae. Rim of propodeal spiracle and carina connecting propodeal spiracle to pleural carina normal.

METASOMA. Postpetiole coriaceous. Metasomal tergite II 1.4 × as long as apically wide. Ovipositor ratio 1.6–1.7.

COLOUR. Black. Palps and tegulae yellowish-white. Mandibles (except black base and reddish teeth) and pedicel apically yellow. Scape and flagellum yellowish-brown, flagellum lighter distally. Pterostigma yellowish-brown. All coxae black, fore coxa yellow marked distally, all tibial spurs yellowish-white; fore and mid trochanters and trochantelli yellowish-red, fore and mid femora, tibiae and tarsi yellowishred. Hind trochanter and trochantellus brownish, hind femur red, hind tibia and tarsus yellowish-red, tibia with very small light spot at base, very slightly brownish subbasally and apically. Metasoma and ovipositor sheath black.

Figures

Fig. 4. Epicnemial carinae, in lateral view, and shape of temples behind eye, dorsal view. A. Campoplex melanostoma (Strobl, 1904) (ZSM). B. C. punctulatus (Szépligeti, 1916) (ZSM). C. Schematic drawing illustrating the epicnemial carina subventrally turned towards the ventral hind corner of pronotum. D. C. difformis (Gmelin, 1790) (ZSM). E. Schematic drawing illustrating the epicnemial carina subventrally more or less straight, not turned towards the ventral hind corner of pronotum.F. C. restrictor Aubert, 1960 (ZSM), temples strongly narrowed behind eyes (i.e., imaginary lines connecting outer side of eye and temple intersect at the level of the scutellar groove). G. C. tibialis (Szépligeti, 1916) (ZSM), temples not strongly narrowed behind eyes (i.e., imaginary lines connecting outer side of eye and gena intersect at the level of the scutellum or behind it). Abbreviations: ep.c. = epicnemial carina; m.g. = mesopleural groove; sp. = speculum.

Fig. 5. Epicnemial carinae, in ventrolateral view and related schematic drawings, in frontal view. A. Campoplex bilobus (Thomson, 1887) (ZSM), epicnemial carina ventrally raised and divided into two lobes. B. C. hercynicus Horstmann, 1985 (ZSM), epicnemial carina ventrally raised and slightly notched in the middle. C. C. unicingulatus (Schmiedeknecht, 1909) (ZSM), epicnemial carina evenly raised ventrally and not divided nor notched in the middle. D. C. difformis (Gmelin, 1790) (ZSM), epicnemial carina ventrally only very slightly raised. Abbreviations: ep.c. = epicnemial carina; m.s. = medial sternal groove.

Fig. 7. Temples behind eye, dorsal view. A. Campoplex capitator Aubert, 1960, lectotype (MZL). B. C. difformis (Gmelin, 1790) (ZSM). C. C. dubitator Horstmann, 1985 (ZSM). D. C. formosanae Horstmann, 2012 (NMS). E. C. unicingulatus (Schmiedeknecht, 1909) (ZSM). F. C. corsicator Aubert, 1960, lectotype (MZL).

Fig. 9. Flagellum, apical quarter.A. Campoplex capitatorAubert, 1960, lectotype (MZL).B. C. difformis (Gmelin, 1790) (ZSM). C. C. dubitator Horstmann, 1985 (ZSM). D. C. formosanae Horstmann, 2012 (NMS). E. C. unicingulatus (Schmiedeknecht, 1909) (ZSM). F. C. corsicator Aubert, 1960, lectotype (MZL).

Fig. 10. Propodeum and propodeal carinae, dorsal view. A. Campoplex capitator Aubert, 1960, lectotype (MZL). B. C. difformis (Gmelin, 1790) (ZSM). C. C. dubitator Horstmann, 1985 (ZSM). D. C. formosanae Horstmann, 2012 (ZSM). E. C. unicingulatus (Schmiedeknecht, 1909) (ZSM). F. C. corsicator Aubert, 1960, lectotype (MZL).

Fig. 14. Face, frontal view. A. Campoplex capitator Aubert, 1960, lectotype (MZL). B. C. difformis (Gmelin, 1790) (ZSM). C. C. dubitator Horstmann, 1985 (ZSM). D. C. formosanae Horstmann, 2012 (ZSM). E. C. unicingulatus (Schmiedeknecht, 1909) (ZSM). F. C. corsicator Aubert, 1960, lectotype (MZL).

Fig. 16. Campoplex difformis (Gmelin, 1790), ♀ (ZSM). A. Habitus and labels. B. Head, lateral view. C. Propodeum, dorsolateral view showing area superomedia and area petiolaris clearly depressed and carina connecting propodeal spiracle to pleural carina normal.