Orgilus oregonensis Muesebeck 1970

Oreg.

Orgilus oregonensis

Although this species is rather similar to impiger, new species, it may be readily distinguished by its completely smooth and polished second tergite and its broader, hardly receding temples.

FEMALE.—Length 4.5 mm. Head not wider than thorax, in dorsal view 0.7 as long as wide; face 1.2 times as wide as eye height, shiny, and finely and rather closely punctate, the punctures small and shallow, face also with the median longitudinal line more or less keellike in lateral view; clypeus very large and closely punctate; malar space a little longer than clypeus and slightly more than half as long as eye height (in ratio of 35:65), finely shagreened and mat, like the cheeks, which are as wide as the eyes; temples rather flat and only very slightly receding, at mideye point 0.9 as wide as eyes, smooth and polished but with a few very weak punctures; vertex smooth and shiny, with a few weak punctures; ocellocular line considerably more than twice as long as diameter of an ocellus; occipital carina broadly interrupted medially; maxillary palpi fully as long as width of head; antennae of holotype 31-segmented, some segments in apical third of flagellum clearly broader than long.

Mesoscutum smooth and shiny, the middle lobe with some very weak setigerous punctures; notauli sharply impressed and foveolate, an area of very coarse, confluent punctures at their junction just before apex of scutum; disc of scutellum convex, smooth, and polished; propodeum rugose, with a very small, transverse, smooth and polished area each side of the middle at extreme base, and with the stubs of the longitudinal carinae that arise from the posterior margin developed but not very strong, the areas between them rugulose; side of pronotum rugulose in the impression, virtually smooth above near upper margin; mesopleuron smooth and polished, the longitudinal furrow a little sinuate and strongly foveolate, a few confluent punctures below the furrow anteriorly; metapleuron finely rugulose except on a very small triangular area in the anterior upper angle. Hind coxa strongly rugulose on dorsal edge, weakly roughened on outer side; hind femur twice as long as hind coxa and nearly five times as long as wide; inner calcarium of hind tibia slightly more than half as long as metatarsus; tarsal claws simple. Radial cell on wing margin about as long as stigma; second abscissa of radius on a line with intercubitus; stub of third abscissa of cubitus as long as second abscissa; nervulus barely postfurcal; hind wing broad, only four times as long as its maximum width; lower abscissa of basella just about as long as nervellus and hardly one-third as long as mediella or maximum width of hind wing.

Abdomen rather stout and at least as long as head and thorax combined; first tergite 1.3 times as long as broad at apex, finely rugulose except at base and medially at apex where there is also a small broadly oval, shallow impression; second tergite 1.4 times as broad at base as long, completely smooth and polished; the following tergites also smooth and polished; second suture very fine, weakly impressed; ovipositor sheath just about as long as abdomen.

Black; clypeus, palpi, and antennae black; mandibles dark brown; legs yellowish brown, hind coxae black or blackish except outwardly on apical half where they are yellowish brown, hind femora blackish on inner sides; hind tibiae weakly darkened at apices, all tarsi dark; tegulae and wing bases blackish; wings distinctly a little infumated; venter of abdomen blackish, even basally.

MALE.—Unknown.

HOLOTYPE.—USNM 70187.

DISTRIBUTION.—Known only from the holotype female labeled as having been collected at Corvallis, Oregon, 2 June 1892.