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Show 272 MR. M. JACOBY ON COLEOPTERA [May 21, DISONYCHA AUSTRIACA, Schauf. San Esteban. DISONYCHA GLABRATA, Fabr. La Guaira and San Esteban. DISONYCHA L^EVIPENNIS, n. sp. Testaceous; the antennae, apex of the tibiae, and the tarsi black ; thorax impunctate; elytra purplish blue, impunctate. Length 2 lines. Head impunctate, testaceous, with a single deep fovea near the inner margin of the eyes ; the frontal elevations absent; the clypeus broad and but little raised; antennae short and robust, entirely black, the first joint testaceous below, the fourth longer than the third, this latter distinctly longer than the second joint; thorax transverse, nearly three times broader than long, pale testaceous, entirely impunctate, with an obscure transverse depression near the base, the posterior angles oblique ; scutellum much broader than long, piceous; elytra entirely impunctate, purplish blue; underside and legs testaceous ; the tibiae (their base excepted) and tarsi black. Caracas. A single specimen. D. Icevipennis seems allied toD. eximia, Harold, from which it differs in the colour of the antennae and in the presence of a thoracic groove. 1). steinheili is another closely allied species, but has the vertex of the head aeneous and the basal joints of the antennae pale. The elytra in D. Icevipennis, although impunctate, are unevenly rugose, but it is possible that in the specimen obtained this is abnormal or accidental. SYSTENA S-LITTERA, Linn. Caracas. EPITRIX FULVICORNIS, n. sp. Black ; thorax and legs, the posterior femora excepted, flavous ; thorax very strongly punctured ; elytra with the base swollen, deeply punctate-striate. Length ^ line. Head piceous, impunctate ; the frontal tubercles forming narrow oblique ridges ; antennae flavous, the third and fourth joints equal; thorax nearly twice as broad as long, rather convex, the sides nearly straight, the anterior angles oblique, the surface deeply and rather closely punctured, with a slight bronze tint, the median lobe strongly produced and rounded ; the sulcation not very deep, except at the sides, slightly sinuate, the space below it more remotely punctured: elytra with the basal portion strongly raised, the latter bounded below by a transverse groove, the punctured rows deep and regular, visible to the apex; the interstices costate at the sides, clothed sparingly with a few hairs. San Esteban and Caracas. E. fulvicornis seems to differ from its rather numerous congeners |
