Orgilus politus Muesebeck 1970

Nebr., Kans.

Orgilus politus

This species resembles levis, new species, in its completely smooth and polished abdomen, but it differs in its relatively broader hind wings, longer hind femora, and rather strongly convex propodeum.

FEMALE.—Length about 4.5 mm. Head a little wider than thorax, in dorsal view about 0.6 as long as wide and rather strongly excavated behind; face slightly broader than eye height (in ratio of 70:65), moderately convex, minutely punctate and shiny; malar space and lower cheeks weakly shagreened; malar space less than 0.4 as long as eye height and not longer than clypeus; temples weakly convex, very slightly receding, about 0.75 as wide as eyes, very shiny but with some extremely minute punctures; occipital carina broadly interrupted medially; ocellocular line about twice as long as diameter of an ocellus; antennae of holotype 36-segmented, some of the preapical segments as broad as long.

Thorax slender; smooth and very shiny, with some exceedingly minute and weak setigerous punctures, especially on the middle lobe; notauli deeply impressed, finely foveolate anteriorly, more coarsely so posteriorly; disc of scutellum longer than broad, polished; propodeum convex, largely smooth but a little rugulose punctate or confluently punctate laterally; side of pronotum roughened in the impression and below it, largely smooth above; mesopleuron polished, impunctate, the longitudinal furrow strongly foveolate; metapleuron largely smooth and shiny, rugulose at lower posterior margin. Hind coxa completely smooth and shiny, 0.7 as long as hind femur, which is at least 4.5 times as long as wide; longer calcarium of hind tibia a little less than half as long as metatarsus; tarsal claws simple. Radial cell on wing margin very slightly longer than stigma; second abscissa of radius on a line with intercubitus; stub of third abscissa of cubitus a little longer than second abscissa; nervulus postfurcal by about one-third its length; hind wing about 4.6 times as long as wide; lower abscissa of basella longer than nervellus but less than half as long as mediella.

Abdomen slender, entirely smooth and polished; first tergite about 1.25 times as long as wide at apex, with no indication of the basal dorsal keels; second tergite not or barely wider at base than long; apical segments rather conspicuously hairy; second suture very weak; ovipositor sheath longer than head, thorax, and abdomen combined.

Black; antennae brownish black; palpi blackish; mandibles reddish yellow; tegulae and wing bases black or piceous; wings subhyaline; legs, including all coxae, bright testaceous, the forefemora basally above, extreme apices of hind femora and all the tibiae and tarsi more or less, darkened.

MALE.—Unknown.

HOLOTYPE.—USNM 70188.

DISTRIBUTION.—Known only from 2 females (one the holotype) collected in Riley County, Kansas, in the month of October by C. L. Marlatt, and 1 female taken at Halsey, Nebraska, 8 September 1957, by R. E. Henzlik.