Reprinted from: Cresson, E.T., 1878. Descriptions of new North American Hymenoptera in the collection of the American Entomological Society. Trans. Am. Entomol. Soc.7:77.
Black, opaque; heed and thorax coarsely and
densely punctured ; orbits, very broad anteriorly, clypeus except base, labrum,
mandibles, antenna, collar, four stripes on mesothorax, scutellums, four spots
on metathorax, tubercles, most of pleura and tegula, ferruginous; antenna
dusky above, third joint much shorter than fourth; scutellum strongly bilo
bate, shining; wings dusky, with hyaline spot near tip; lege ferruginous, coxa
and femora more or loss black at base; abdomen shining, closely and minutely
punctured, varied with ferruginous, a narrow sinuate subinterrupted band on
first segment, a broad band on eecond segment, narrowed gradually to middle
where it is slightly interrupted, a line on each side of third segment end the
fifth segment notched on each aide posteriorly, ell white; posterior margin of
third segment broadly ferruginous; venter ferruginous, varied with blackish.
Length .30 inch.
Var. 9.?Abdomen entirely black above except a trensverse cuneiform spot
on each side of second segment, a spot on each side of third, an interrupted
band on the fourth, and a square spot on middle of fifth eegmeut, all white.
Length .30 inch.
V?Larger and more robust then 9 ? black; sides of face narrowly,anterior
margin of clypeue, and scape beneath white; labrum, mandibles, flagellum
beneath, lino on collar, tubercles, scutellum, tegula, spot before and mark on
pleura, ferruginous; wings hyaline, apical margin fuscous; lega ferruginous,
coxa and femora behind black; abdomen marked as in 9 ? axeept that the
fourth, fifth and sixth segments are ferruginous with a narrow white band,
venter with four white spots. Length .35 inch.
Hab.?Colorado, Kansas, (Snow % , Morrison 9 ). Three speci
mens
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