Exophthalmus sulcipennis Champion 1911

♀. Elongate, subcuneiform, shining, black; above sparsely, the legs and under surface densely, clothed with scintillating metallic-green scales, those on the prothorax condensed into a narrow vitta on each side of the disc and those on the elytra into a stripe down each alternate interstice. Rostrum longer than broad, with a rather broad, smooth, raised median line, which is continued narrowly backwards beyond the inter-ocular fovea; antennal scape reaching the posterior margin of the eyes, the latter rounded and prominent. Prothorax about as long as broad, subquadrate, slightly narrowed in front, feebly bisinuate at the base, and hollowed down the middle; irregularly, confluently foveolate and finely punctate. Scutellum rounded. Elytra elongate, widened to the middle, transversely depressed at the base, acuminate and sharply mucronate at the apex, the humeri not very prominent; with twelve rows of coarse punctures, the interstices transversely confluent, 3, 5, 7, and 9 raised, the others almost flat and squamose. Tibiæ without denticles, the anterior pair strongly unguiculate.
 
Length 17, breadth 5½ millim.

Hab.GUATEMALA, Purula in Vera Paz (Champion).BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 3, October 1911. 2 MM

One specimen. More elongate than the female of E. jekelianus; the rostral carina broader and less acute; the prothorax subquadrate; the alternate elytral interstices raised and almost bare, the others flattened and squamose, the apices more sharply mucronate. The tibiæ are not sulcate.