Hyposoter monensis Galsworthy & Shaw, 2023

Galsworthy, Anthony, Shaw, Mark R. & Haraldseide, Håkon, 2023, A key to European species of Hyposoter Förster, 1869 (Ichneumonidae: Campopleginae) with descriptions of 18 new species, and notes on all included species, Zootaxa 5290 (1), pp. 1-73 : 53

Hyposoter monensis Galsworthy & Shaw sp. nov.

( Fig. 20 )

Diagnosis. In the group with black metasoma, pale fore and mid coxae, and more or less orange hind tibiae, this species can be distinguished from all but Hyposoter pechipogator sp. nov. by its rugose area petiolaris. It can be distinguished fairly easily from the latter by the lack of punctures on the lower mesopleuron, and the entire seventh tergite.

Description. Female: fore wing length 5 mm.

Head: face longer than broad, finely granulate with very small punctures widely scattered and scarcely visible; clypeus not differentiated from face, very broad and rather flat, with a smooth narrow outflexed border; mandibles yellow except for brown teeth, strongly tapering at apices; frons, vertex and temples sculptured much as face, the last steeply declivous immediately behind ocelli and strongly narrowed behind eyes; genal carina meeting oral carina at an acute angle a short distance from base of mandibles; malar space about 0.7x width of base of mandible; first flagellomere about 4x as long as wide, flagellum with 29 flagellomeres.

Mesosoma: mesoscutum finely and uniformly granulate, except for notauli, which are not impressed, but marked by lines of slightly projecting rugae, extending to about 1/3; whole mesopleuron, including speculum, finely and rather evenly granulate, the lower part with scattered small, almost invisible, punctation; metapleuron similar; propodeum rather long and gently sloping, with lateral fields sculptured much as mesopleuron, but area superomedia and petiolar area increasingly and quite strongly rugose; area basalis a long and narrow isosceles triangle; area superomedia elongate, kite shaped, with strong lateral carinae, but not differentiated from petiolar area; costulae indicated only at base; lateral carinae of petiolar area strong. Propodeal spiracle small, circular, about one diameter above pleural carina. Claws pectinate.

Wings narrow, 1 cu-a strongly postfurcal; areolet subrectangular, stalked; nervellus reclivous, slightly curved.

Metasoma: petiole of first segment of gaster smooth, shiny and unpunctured, the sides slightly converging distally; upper part of petiole above glymma gradually expanding, with a triangular area of granulate sculpture which extends to the whole postpetiole, the latter rectangular behind spiracles; rest of metasoma very faintly granulate with scattered very fine punctures; 2nd tergite elongate, with large subcircular thyridia laterally close to base; 7th segment not emarginate; ovipositor sheaths shorter than depth of metasoma, ovipositor slightly curved upwards, with strong dorsal notch.

Colour: black, metasoma from 2nd tergite onwards and hind coxa tinged brownish; mandibles except teeth, tegulae, palps, fore and mid trochanters and trochantelli, underside of fore and mid coxae (upperside of both tinged light brown) and first sternite yellow; legs otherwise orange, hind tibia with only very slight darkening at extreme base and apex; antenna including scape and pedicel dark brown, slightly paler and redder towards apex of flagellum.

Male: identical to female in sculpture and colour, except that hind femur more strongly darkened at base and especially apex, and 2nd sternite with substantial brownish shading.

Holotype: ♀, [ UK] Llangristiolus, Anglesey, SH434736. Malaise Trap by hayfield; 24.vii–7.viii.82, S.A. & D.C.Wilkinson, RSMNH 1982.066 ( NMS) . Paratypes: 2♁, same data as holotype (both NMS) .

Nothing is known of its biology.

Figures

FIGURES 18–22. 18–19: Hyposoter karmensis sp. n. Habitus: 18 lateral, 19 dorsal. 20: Hyposoter monensis sp. n. Habitus. 21–22: Hyposoter morairae sp. n. Habitus: 21 lateral, 22 dorsal.