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Show 1877.] COLLECTION M A D E B Y H.M.S. 'PETEREL.' 77 7. THOMISOIDES UTRIFORMIS, n. sp. (Plate XIII. figs. 4, 4a, 4b, 4°.) Cephalothorax cordiform, truncate in front (the caput nearly straight at the sides), orange-tawny, pilose, with marginal and radiating lines of short black setae; eyes pale olive-hyaline, the central pair close together on the centre of the anterior margin of the caput, lateral pairs tolerably wide apart, placed on the lateral anterior margins of the caput, slightly obliquely ; abdomen trapezoidal, excavated in front, transversely wrinkled and bisinuate behind, pilose, sordid ochraceous, clothed in front with coarse black setae, a series of depressions on each side ; legs testaceous, banded with grey, with longitudinal series of short black setae; palpi testaceous, setose; falces castaneous, setose ; maxillae and labrum castaneous ; pectoral plate testaceous, circular, sliglitly truncated in front and behind; abdomen below olive-brown, paler at base. Length 9 millims.; relative length of legs 2, 1, 3, 4. One specimen, Charles Island. Most like T. rubripes of Nicolet. VII. COLEOPTERA. By C. WATERHOUSE. GEODEPHAGA. SELENOPHORUS GALAPAGOENSIS, G. R. Waterh. The type of this species, found by Mr. Darwin and described as "piceus," is evidently immature, as the two specimens just received from Commander Cookson (unfortunately also both females) are almost black above, but very slightly aeneous when viewed obliquely. The larger specimen measures 4-| lines. Hab. Charles Island (Darwin and Cookson). HYDRADEPHAGA. EUNECTES OCCIDENTALIS, Er. Six examples, which agree very well with the brief description of this species. Hab. Charles Island (Cookson). ACILIUS INCISUS, Aube, var. Three examples. The male agrees perfectly with that of A. incisus. The female differs in having the thorax more punctured, and in having the elongate punctures on the elytra much stronger and more close than in any examples of incisus; and the punctures, although diminishing in strength and density, extend nearly to the apex. As considerable difference is admitted to exist in this respect in A. circumscriptus, the specimens from Galapagos must, I think, be considered mere varieties of A. incisus. Hab. Charles Island (Cookson). |