Epicaerus (Epicaerus) macropterus Sharp 1911

Very elongate, narrow, black; thickly clothed with greyish-brown scales, which become paler and somewhat cupreous on the under surface, the elytra also set with very short, scattered, curled, decumbent setæ. Rostrum longer than broad, deeply sulcate down the middle, the sulcus narrowing upwards and nearly reaching the conspicuous inter-ocular fovea, and also with a shallow groove on each side before the eyes, the latter large and moderately prominent. Prothorax about as long as broad, truncate at the base, somewhat rounded at the sides, the latter obliquely converging anteriorly and abruptly constricted before the hind angles; shallowly sulcate down the middle, transversely confluently foveolate, and also closely, finely punctate. Elytra very elongate, at the basal third slightly wider than the prothorax, constricted just behind the prominent humeri, convex on the apical declivity; the seriate punctures fine and scattered, the interstices feebly transversely undulate. Anterior tibiæ with several short setigerous denticles scattered along their inner edge.
 
Length 10½, breadth nearly 3 millim. (♂.)

Hab. MEXICO, Zacualtipan in Hidalgo (Höge).

One specimen, labelled by Dr. Sharp “sp. n. near championi,

” from which it differs in its much more elongate shape, longer rostrum, obsoletely denticulate anterior tibiæ, transversely rugose prothorax, and less undulate elytra. Seventeen specimens of the Guatemalan insect were captured and there is nothing intermediate. The small denticles on the anterior tibiæ are wanting in the latter.