A Revision of the Genera and of the American Species of Tryphonini (Hymenoptera: Ichneumonidae) Part II

Townes, Henry; Townes, Marjorie

ABSTRACT: Fore wing 4.0 to 7.5 mm. long; body stout to rather slender; clypeus broad, with basal and apical sections meeting in a submedian transverse ridge to evenly convex, the apical margin with a fringe of unspecialized setae; cheek 0.1 to 0.3 as long as the basal width of the mandible; posterior mandibular condyles separated from each other by a distance equal to, or usually greater than that between the eyes at the level of the clypeal foveae; outer face of mandible at its basal 0.2 approximately flat, coarsely punctate; occipital carina often incomplete below; frons rarely with a median horn that is hollowed out above; hind corner of pronotum often incrassate and more or less strongly projecting; subtegular ridge heavy and variously specialized; tegula convex, flat, or concave above; areolet present, oblique; second recurrent vein with the lower half straight and the upper half curved or somewhat sinuate or angled, though never strongly angled as in Tryphon, with two bullae that are well separated to nearly confluent; nervellus broken between its lower 0.25 and its upper 0.25; tarsal claws pectinate only basally to pectinate nearly to the apex; second tergite smooth or with a more or less distinct transverse postmedian groove, impunctate to strongly punctate; ovipositor sheath linear, a little broader basally, flexible in its basal 0.4 (fig. 22); ovipositor straight or weakly sinuate, tapered to a sharp point, usually about 1.3 as long as the apical depth of the abdomen (fig. 22).