Woodlands Historic Park Wasps

Armyworm Parasitoid Wasp (Ichneumon promissorius) at Woodlands Historic Park
Armyworm Parasitoid Wasp, late December

Classification

from Australian Faunal Directory

Order Hymenoptera - Wasps, Ants, Bees and Sawflies, 12202 named species in Australia
Family Ichneumonidae - parasitic wasps, 472 named species in Australia
Subfamily Ichneumoninae - 21 named species in Australia
Genus Ichneumon
Species Ichneumon promissorius

Description

From Cameron (1912), page 174.

Probolus varilineatus, sp.n.

Black ; second abdominal segment red, as are also the third ventral and the keel on the fourth ; face except for a black line in the centre, the top part narrowed, narrower above than below, the lower part dilated into almost a square which projects into the clypeus, where it is rounded ; clypeal foveas, a semicircular mark on apex of clypeus, a short line on inner orbits opposite the antennae, an oblique mark in middle of mandibles, sides and undersurface of antennal scape, tegulae, a short line in front of them on the pronotum, tubercles, scutellum, apical half of postscutellum, a large mark on either side of apical slope of metanotum, longer than wide, slightly narrowed below, slightly incised above and below, a semicircular, oblique mark on sides of apex of postpetiole, a short longitudinal line on sides of second at apical fourth, a broad line on apex of third, laterally dilated to the centre of the segment : a narrower line, slightly dilated laterally, on the fourth, a line on outer third of the fifth, a slightly brouder one, of almost uniform thickness on the sixth, and a broad mark, dilated backwards narrowly to the base, on the sides of the sixth, whitish-yellow. Four front legs fulvous-yellow, coxae and basal joint of trochanters black, apex of coxae laterally yellow, more broadly so on the outerside : hind legs red, femora of a brighter red than the tibiae, coxae, basal joint of Trochanters, apical fourth of femora, apex of tibiae slightly more broadly, apex of metatarsus, and the whole of the other tarsal joints, black : coxae with a large yellow mark, obliquely narrowed from apex to base in front : spurs testaceous. Wings hyaline, stigma testaceous, costa and nervures black : transverse median nervure received shortly beyond the transverse basal ; recurrent nervure shortly beyond the middle flagellum of antennae rufous, apical half black above.

Male Length, 12 mm.

Richmond, Sydney, Noundoc, etc., N.S.W. ; bred from moth-pupa?(W. W. Froggatt).

Head and thorax densely coveied with white pubescence, closely punctured : metanotum rugosely punctured, almost reticulated, the areola longer than wide, of equal width, transverse at base and apex, the lateral keels bulging out slightly, inside closely, irregularly, longitudinally striated, the striae intertwining. The puncturation on the pleurae runs into reticulations. The raised central part of postpetiole closely, longitudinally striated, the strias intertwining, the sides more strongly striated, reticulated on the inner edge : the other segments closely punctured, the puncturation becoming gradually finer. Gastracoeli wide, deep, obliquely widened outwardly, the centre with two stout striae, roundly bulging outwardly. Comes near to P. albocinctus Cam., but is not, I consider, its male.

References