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Show 290 MR. M. JACOBY O N C O L E O P T E R A [May 21, Length If-2 lines. Head very finely punctured at the vertex, with a transverse groove between the eyes, the frontal tubercles broadly trigonate ; the clypeus triangularly raised ; antennae more than half the length of the body in the male, shorter in tbe female, fuscous, the base of each joint pale, the two or three basal joints sometimes entirely testaceous, the second and third joints nearly equal ; thorax one half broader than long, the lateral and the posterior margin strongly rounded, the surface very minutely punctured with an obsolete transverse depression at each side, the latter obscurely stained with fuscous, the middle with two or three smaller spots placed triangularly ; scutellum piceous ; elytra scarcely more strongly punctured than the thorax, obscure testaceous, the extreme sutural and lateral margins piceous ; below and the legs testaceous, the apex of the posterior tibiae and the tarsi more or less fuscous ; tibiae with a long spine ; the metatarsus of the posterior legs as long as half the tibiae ; anterior coxal cavities open. Colonia Tovar and Caracas. GALERUCELLA ORNATA, n. sp. Pale greyish or fuscous, finely and closely pubescent; thorax with a central and two lateral depressions; elytra with three longitudinal more or less interrupted stripes and two apical spots fuscous. Var. Much paler, the stripes divided into spots. Length If-2 lines. Rather variable in colour, of narrowly elongate shape, the head with a distinct longitudinal central impressed groove, closely pubescent; clypeus strongly transverse and swollen, pale fulvous or testaceous, shining; penultimate joint of the palpi widened, apical one short and conical; antennae scarcely extending to half the length of the elytra, fuscous or nearly black, in some specimens testaceous with the apex of each joint darker, the second joint short, the third the longest, the following joints gradually diminishing in length, the intermediate ones slightly widened ; thorax twice as broad as long, the sides rounded at the middle, then rather suddenly constricted at the apex, the angles in shape of a small tubercle, the anterior margin straight, the posterior one slightly sinuate at the middle ; the surface with a deep depression at each side and a more shallow one near the anterior margin, finely and closely covered with yellowish pubescence ; scutellum not longer than broad : elytra elongate, with a rather deep longitudinal lateral depression below the middle, closely covered with pale fuscous pubescence, sometimes with a slight fulvous tint; a sublateral and subsutural longitudinal stripe, the former interrupted below the middle, the latter extending nearly to the apex, three elongate spots between these stripes, a spot near the apical margin, and the apex of the suture, paler or darker fuscous ; tibiae unarmed ; the first joint of the posterior tarsi nearly as long as the three following joints ; claws bifid, the inner division rather short; anterior coxal cavities open. Caracas, La Guaira, Puerto Cabello. |