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Show *879.] PHYTOPHAGOUS C O L E O P T E R A . 783 of which is very short, their interstices also extremely minutely punctate, dark violaceous blue, with a bright yellow band of crescent-shape, which, commencing at the base and running parallel with the lateral margin (without, however, quite touching it), turns inwards at a little distance from the apex, towards the suture, which, in the one specimen before me, it does not quite reach. Underside and legs rather darker blue than the upperside. HALTICINJE. 20. CRIMISSA NIGRO-ORNATA, sp. nov. Broadly oblong-ovate. Black, base of antennae and the femora fulvous; above testaceous. Thorax with three transversely placed black spots. Elytra irregularly punctured, each elytron with a black longitudinal spot on the shoulder. Length 5|-6 lines. Hab. Columbia. Head swollen, impunctate, with an elongate triangular black spot at the vertex; the space immediately above the insertion of the antennae but slightly raised and divided by a broad triangular groove, black ; apex of jaws and palpi black ; antennae shorter than half the length of the body, with the basal joint slender, curved, and the longest, the fifth joint slightly longer than the rest, first joint entirely testaceous, the second to the fifth spotted with piceous on each side, the remaining joints black with only the extreme base testaceous. Thorax transverse, about three times as broad as long, the anterior and posterior margins produced in the middle, sides nearly straight and widened towards the base ; all the angles acute, the anterior ones much produced and pointed; surface slightly convex, smooth, shining, and impunctate, with a round spot at each side and a short longitudinal streak in the middle near the base black. Scutellum pentagonal, obsoletely edged with piceous. Elytra convex, scarcely broader at the base tban the thorax, distinctly and rather closely punctured, of the same colour as the thorax, or a little lighter testaceous, with a longitudinal black spot on the humeral callus. Underside black, the femora fulvous, the posterior ones with a black spot; the tibiae and tarsi also more or less stained with black. In one specimen, which may prove to be the female, of rather larger size, the black colour predominates beneath, the spots on the thorax are much enlarged, especially the middle one, and the elytral spots extend in the shape of longitudinal pointed vittae from the shoulder to nearly the apex. 21. HOMAMMATUS CLARKI, sp. nov. Oval convex, robust. Dark chestnut-coloured, subpubescent. Antennse dilated towards the apex, fulvous, the sixth to the ninth joint black; elytra with a small black spot before the middle. Length 2f lines. |