Colaspis lata Schaeffer 1934

Colaspis lata Schaeffer

Colaspis lata Schaeffer, 1933:469.

DESCRIPTION.—Between 5.0 and 6.5 mm in length, broadly oblong oval, yellowish or reddish brown with head and prothorax often darker, elytra with 4 prominent paler costae on each, punctures being deeper reddish brown, usually undersurface dark with metallic green luster, margins of elytra also metallic, sometimes elytral punctures faintly aeneous; apical two or three antennal joints dark.

Head with interocular space more than half width of head, front and upper part of clypeus densely and coarsely punctate, a median depression often in middle of front, labrum pale with emargination anteriorly, jaws dark. Antennae with apical joints dark, sometimes 7th joint dark too. Prothorax twice as broad as long with sides rounded, scarcely at all angulate, a small tooth at each corner, surface densely punctate. Scutellum brown. Elytra a little wider than prothorax, about a third longer than wide, with 4 pale costae on each elytron, intervals geminate punctate, often with little trace of lesser costae in basal half, deeper brown than costae; punctures in single row in first interval near suture, and in row next to margin mostly single; margin and epipleura usually with dark blue or aeneous luster, elytral punctures often faintly metallic. Body beneath with middle of prosternum, breast and abdomen usually dark, often with metallic luster. Legs pale. Length 5.0–6.5 mm; width 2.3–2.5 mm.

Two cotypes in National Museum of Natural History.

TYPE-LOCALITY.—Harrison, Nebraska.

OTHER LOCALITIES—Nebraska: Meadow. S. Dakota: Platte; Warner; Ft. Thompson; Vermillion; Chamberlain; Springfield. New Mexico. Colorado. Canada: Toronto. Kansas: Manhattan; West Kansas; Ellsworth; Gove County; Douglas County; Clark County; Madison. Iowa: Iowa City; Council Bluffs. Wisconsin. Utah. Texas: Dallas. Georgia. Louisiana: Covington.