Xorides rufofacialis Varga, 2019

Varga, Oleksandr, 2019, Revision of theAfrotropical Xorides Latréille, 1809 (Hymenoptera, Ichneumonidae Xoridinae), with description of three new species, Zootaxa 4638 (1), pp. 57-80 : 75-76

Xorides rufofacialis Varga , sp. n.

( Fig. 10 )

Material examined. Holotype. SOUTH AFRICA: female, Mossel Bay , Cape Province, iv. 1921, leg. R. E. Turner (deposited in: BMNH).

Diagnosis. Xorides rufofacialis sp. n. is characterized by the combination of the following characters: body generally red-brownish; vertex sparsely punctate; antenna subapically not sharply angled at a single joint, first flagellomere short, about 0.5× length of the second flagellomere; face reticulate rugose; pronotum densely punctate; epomia present; epicnemial carina absent; propodeum with traces of carinae, tooth-like projections strong; fore and middle trochantelli without apical tooth; fore wing with vein cu-a basad of Rs&M by about 0.3 of its length; first metasomal tergite 1.4× as long as apical width, densely punctate, with transverse grooves, carinae absent; ovipositor about 1.8× length of hind tibia.

Description. Female. Holotype ( Fig. 10 ). Body length approximately 6.0 mm. Fore wing 4.5 mm.

Head ( Figs 10A, 10C, 10E, 10G ) depressed, temples short and weakly rounded behind eyes, covered with long white setae; frons rugulose, with short carina-like projection between antennal sockets; length of the ocellar-ocular distance 1.4× maximum diameter of lateral ocellus; ocelli small, hind ocellus not extended behind eye; temples wrinkled; vertex sparsely punctate; occipital carina complete; antenna subapically not sharply angled, with 22 flagellomeres, first flagellomere about 0.5× length of the second flagellomere, flagellomeres 17–18 with four long sensillae; face about 0.5× as long as wide, reticulate rugose, tentorial pits deep; malar space 1.3× basal width of mandible, with strongly depressed subocular groove; clypeus 0.7× as long as wide, smooth, rounded apically.

Mesosoma ( Figs 10C, 10D, 10I, 10F ) densely pubescent; propleuron sparsely punctate dorsally, wrinkled ventrally; pronotum swollen apically, densely punctate, epomia present; mesoscutum elongate, densely punctate, with weak notauli; scutellum and postscutellum densely punctate; mesopleuron densely punctate except posteriorly; epicnemial carina absent; sternaulus distinct on distal 0.2 of mesopleuron; metapleuron swollen, densely punctate; propodeum densely punctate, with traces of carinae, tooth-like projections strong; pleural and submetapleural carinae present; spiracles elongate, small.

Legs slender, hind femur 3.0× as long as wide; hind coxa sparsely punctate; fore and middle tibiae not swollen, narrower than femora, with V-shaped median ventral groove and subapical emargination; fore and middle trochanters without apical tooth; hind tibia with strong spines; tarsal claws simple.

Wings. Fore wing with vein 2 rs-m short, 0.2× istance between 2 rs-m and 2 m-cu; vein cu-a basad of Rs&M by about 0.25 of its length; hind wing with distance between distal abscissa of Cu 1 and M about as long as vein cu-a.

Metasoma ( Figs 10D ) sparsely punctate; first tergite 1.4× as long as apical width, densely punctate, with transverse grooves, carinae absent; second tergite 0.7× as long as apical width, densely punctate, with two basolateral and third central triangular swellings delimited by basolateral and subapical transverse grooves; third tergite 0.6× as long as apical width, with two swellings, sparsely punctate proximally, granulate distally; the remaining tergites indistinctly sculptured; ovipositor about 1.8× length of hind tibia, with the apical teeth; ovipositor sheaths densely pubescent.

Colour. Body generally red-brownish with black marks except flagellomeres 11–14, tergites 1 and 7 apically, ovipositor sheaths subapically, and pterostigma basally yellow; fore wing with tree brown stripes.

Male. Unknown.

Distribution. South Africa.

Etymology. This species is named after the entirely red face.

Figures

FIGURE 10. Xorides rufofacialis Varga, sp. n., holotype female (scale bar is 0.25 mm):A) frontal view of head; B) lateral view of habitus; C) dorsal view of head and mesosoma; D) dorsolateral view of propodeum and metasomal tergites 1–2; E) lateral view of head and mesosoma; F) lateral view of hind tibia; G) lateral view of apical flagellomeres.