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Show •J MR. M. JACOBY ON NEW COLEOPTERA. 815 rh^Irh°Uf-h thlS i"Sect is at the first view 01llv distinguished from tne preceding species by its larger size, the above details, especially the strong punctuation and dark colour of the head, I think, justifies tne making it a distinct species, moreover as all the specimens in my collection agree exactly in every particular. ' 17. TYPOPHORUS HUMERALIS, Baly, var. rufa. ?f! COn/ex/ base of ^e antenna fulvous. Head, very convex and shining, finely punctured, together with the thorax black. Elytra thorax0"0"8' S> h C°l0Ur CXtends sometimes over the e^re Length 2± lines. Hab. Guatemala. Collected by Mr. Salvin. As this species agrees in every thing with T. humeralis of Dr. Baly (described m the Annals of Natural History, 1859), except the coloration, I consider it a mere variety of this species, which, to m y knowledge, has not yet been described. 18. TYPOPHORUS QUADRIPLAGATUS, sp. nov. Ovate, moderately convex, light flavous. Head without a groove near the eyes, which are rather closely approximated, strongly punctate on the vertex, flavous ; antennae of the same colour, with the exception of two or three middle joints, which are a little darker. Thorax ot the usual shape, strongly but not closely punctured. Elytra a little narrower at the base than behind the middle, with ten rows of strongly punctured striae; the intervals slightly raised, of a light flavous colour ; each elytron ornamented with two black spots, viz. one on the extreme margin a little before the middle, and a second larger one in the middle, exactly between the margin and the suture Underside dark brown, as well as the last third of the femora; the rest, with the legs and tarsi, testaceous. Length 2 lines. Hab. Amazons. In m y collection. 19. TYPOPHORUS MINUTUS, sp. nov. Ovate, convex, black-brown, shining. Head very convex, without any trace of a transverse groove, but with a slight depression in the middle, upper part distinctly and closely punctured; first five joints of antennae flavous, the rest black. Thorax nearly as long as broad, with the sides much contracted towards the anterior margin, and the posterior one a little sinuate, more or less distinctly punctured, scutellum oblong, smooth. Elytra strongly punctate-striate ; the first striae assuming the form of a continuous line towards the apex and parallel with the suture. Underside and legs black. Length 2 lines. Hab. Rio Janeiro. In m y collection. By its minute size and the uniform coloration of .all the parts, which |