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Show 146 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA. [Feb. 5, same colour as the head and thorax, shining, the base and the lateral margins (with the exception of a small space a little before the middle, where the margin is interrupted by a brownish black spot, which also extends across the elytral seam below), a transverse vitta from one side to the other, and a short streak running from the apex parallel with the suture flavous. Underside brownish black. Length 5-§ lines. Hab. Volcano of Irazu, Costa Rica. Collected by M r . Rogers. 6. DORYPHORA FLAVOMARGINATA, sp. nov. Oblong-ovate, subdepressed, greenish or brownish ; head, lateral margin of thorax broadly, elytral one narrowly testaceous; head and mouth testaceous, the former closely punctate in front of the eyes, nearly smooth in the middle, with a greenish V-shaped mark ; antennae»reaching to the base of the thorax, with the first four joints testaceous, the rest more or less stained with greenish black; thorax with the front margin slightly convex in middle, and the sides evenly rounded, surface closely and distinctly punctured at the base only, the rest sparingly and very minutely ; a subquadrate greenish black patch narrowed towards its base occupies the middle of the disk, leaving the sides testaceous; scutellum flavous, more or less stained with fuscous, smooth ; elytra very little wider at the base than the thorax, semiflattened, of a greenish or brownish tint, irregularly and rather closely punctate-striate, with fine transverse and longitudinal scratches, the lateral margin from the shoulder to the apex testaceous, only punctured near the inner edge, the outer half perfectly smooth with the exception of a single row of rather deep punctures near the extreme margin. Body below, with the exception of the mesosternal process, the tibiae externally, and the margins of the abdominal segments (the latter of which are testaceous) fuscous, shining. Length 4 | lines. Hab. Peru. Collection Jacoby. 7. DORYPHORA DORSOMACULATA, sp. nov. Ovate, regularly convex, dark fuscous ; elytra light green, with a pear-shaped sutural patch, fuscous; head very finely punctate, fuscous, labrum flavous, antennae with the first joint light, the rest darker brown; lateral margins of the thorax rounded throughout, slightly sinuate in middle, more dispersedly but not coarser-punctured than the head, and of the same colour ; scutellum subtriangular, impunctate; elytra strongly punctate-striate (visibly to the naked eye), the striae arranged in single rows, of which the first is short and the seventh disturbed by a few extra punctures near its middle; the interstices also extremely finely punctate, of a light olive-green colour, with the suture narrowly, the lateral margins more distinctly, part of the extreme base, and, connected with it, a common sutural |