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Show 416 MR. MARTIN JACOBY ON NEW SPECIES [Nov. 28, disc impunctate, gradually flattened at the sides, bright green, shining; scutellum black, trigonate; elytra broadly margined, with elongate deep foveae, placed in about six longitudinal rows, the interstices strongly reticulate and confluent, the lateral margins rather broadly green, furnished with single hairs near the apex, rest of the surface shining black or bronze; under side and legs black; metatarsus elongate; claw-joint but slightly swollen. Hah. Ecuador. At once distinguished from A. incequalis Erichs, by the green thorax and sides of the elytra and by the entirely black breast and abdomen. I know of no similarly coloured species. A sph .e r a t e s se l l a ta , sp. n . (Plate XIV. fig. 8 .) Black, head spotted with flavous; thorax impunctate, flavous, with a transverse black band; elytra extremely minutely punctured, flavous, two elongate spots at the base, a narrow transverse band below the middle, and a spot near the apex black. Length 8 millim. Head impunctate, black, the eyes surrounded by a flavous band, frontal elevations narrow, strongly raised, lower portion of face pale fulvous, labrum piceous; antennae black, rather short, the basal joint fulvous below, third and fourth joints ecpial; thorax twice as broad as long, slightly arched, the sides flattened, with a narrow thickened margin which gradually widens anteriorly, the angles strongly thickened and produced, the disc impunctate, flavous, with a transverse black band, the anterior edge of which is concave and irregular in outline ; scutellum black; elytra extremely minutely and closely punctured, flavous, the base with two elongate black spots, a short transverse black band placed much below the middle and another triangular spot near the apex complete the design of each elytron ; under side and legs black; metatarsus of the posterior legs as long as the following two joints together, claw-joint strongly swollen. Hab. Brazil. I know only a single specimen of this well-marked and distinct species, without precise locality. A sph ^e r a v a r ie g a t a , sp. n . Black; the clypeus, thorax, and abdomen flavous; elytra metallic green or obscure purplish, impunctate; a round spot near the scutellum, a transverse band near the apex, and the lateral margins flavous. Var. a. Elytra with a narrow transverse band at the middle and another one near* he apex, as well as the lateral margins, flavous, the basal spot absent. Var. b. Elytra with a single band near the apex and the margins flavous. Length 7-7| millim. Head impunctate, the vertex black, the clypeus flavous, frontal |