Decasticha subocellata Champion 1911

♀. Elongate, black, densely clothed with whitish scales, the prothorax and elytra confusedly variegate on the disc with fuscous scales, those on the elytra enclosing numerous small and two larger (longitudinally placed, transverse or rounded) whitish spots, the flanks of the elytra with a dark-edged spot at about the basal fourth; the surface also set with minute, scattered, decumbent setæ. Head and rostrum densely, finely punctate, the rostrum depressed down the middle to the feeble inter-antennal ridge and finely canaliculate to the small inter-ocular fovea; antennæ rather slender, the scape about reaching the posterior margin of the eyes, the latter rounded. Prothorax broader than long, bisinuate at the base, obliquely narrowed anteriorly; densely, finely punctate, and with some coarse scattered punctures along the sides, the disc incompletely sulcate down the middle and strongly, arcuately depressed at the base. Scutellum subquadrate. Elytra one-half wider than the prothorax, subparallel in their basal half, BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 3, October 1911. 2 NNacuminate and feebly mucronate at the tip, and broadly flattened towards the suture anteriorly; punctate-striate, the punctures becoming larger on the disc, the interstices densely punctulate and more or less convex throughout.
 
Length 16, breadth 5½ millim.

Hab.COSTA RICA (coll. Fry).

One female. This insect has the upper surface marked very much as in the Antillean Exophthalmus obsoletus (Oliv.). The broader elytra, with convex interstices, and the less elongate larger ocellated spots (which are also placed nearer the middle of the disc), distinguish D. subocellata from D. quadriplagiata.