OCR Text |
Show 1879.] MR. M. JACOBY ON NEW COLEOPTERA. 439 1. Descriptions of New Species of Coleoptera of the Family Halticidae. By M A R T I N JACOBY. [Received April 28, 1879.] Genus NOTOZONA, Clark. 1. NOTOZONA BIVITTATA, sp. nov. Ovate, elongate, very convex, black ; head and thorax rufous; elytra black, striate-punctate, each elytron with a longitudinal stripe from base to apex, near the lateral margins, bright flavous. Length 3| lines. Head convex, minutely punctured, vertex smooth, labrum and antennae flavous. Thorax about three times as broad as long, sides rounded, anterior angles produced into a subacute tubercle, hinder angles obtuse; posterior margin not lobed in the middle ; upper surface with a deep round fovea near each side, distinctly and rather closely punctured throughout. Elytra impressed, each with eleven rows of punctures, the intervals also minutely punctured, shining black, each elytron with a flavous band from the base to the apex, running parallel with the lateral margin, and curving round with it towards the suture, near the apex. Underside (with the exception of the sides of the breast, the coxoe of the legs, and the thighs, which are flavous), black ; tibiae and tarsi black. Hab. Peru? Genus DISONYCHA. 2. D I S O N Y C H A ERICHSONI, sp. nov. Elongate, parallel, black, shining; the last three joints of the antennae, the abdomen, and three transverse narrow bands across the elytra yellowish white. Length 3 lines. Head rather depressed, black, shining, a short elongate fovea near each eye. Antennae longer than half the body, the second joint short, the third of double the length, the fourth longer than the third; black, with the exception of the last three joints, which are flavous testaceous. Thorax rather convex, the angles thickened, the anterior ones slightly produced outwards, an obsolete transverse depression extends near the base across the disk; latter impunctate, shining black, the angles obscure testaceous; scutellum elongate triangular, black. Elytra broader than the thorax, rather convex, narrowed near the apex, the latter rounded, surface very minutely punctured, shining black ; the base, a narrow band immediately below the middle, connected with the base anteriorly and laterally, and a band near the apex yellowish-white. Underside and legs black, abdomen flavous. Hab. Peru. Three specimens in m y collection. |