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Show 1875.] MR. A. BOUCARD ON THE GENUS PLUSIOTIS. 117 1 American Sucre, Speckled Partridge Hawk, Pennant, Arct. Zool. n. p. 202. no. 96 (1785). Falco sacer, yar. fl, Gmel. Syst. Nat. i. p. 273 (1788). 1 Falco cinereus, id. Syst. Nat. i. p. 267 (1788). Le Tiercelet pagard du Gerfaut, Schl. & Verst. Traite Fauc. pl. 7 Falco gyrofalco, Thien. Abbild. Vogeleiern, Taf. Ii. figs. 3 a-d (1854). 6 Hierofalco gyrfalco, Bp. Rev. et Mag. de Zool. 1854, p. 536. Norway Falcon, Salvin & Brod. Falconry, pl. xv. (1855). Falco norvegicus, Tristr. Ibis, 1859, p. 24. Falco gyrfalco norwegicus, Schl. Mus. P.-B. Falcons, p. 12 (1862). I may here call attention to another Raptor first described by Forster, which Mr. Ridgway and Mr. Sharpe both seem to have referred to a wrong species, probably not having consulted the original description, as neither of them refers to Forster's paper. This bird is F. spadiceus, which Forster describes as follows:-"This species at first sight bears some resemblance to the European Moor Buzzard or ceruginosus, Linn., but is much less, and wants the light spots on the head and shoulders." This description cannot be fitted to agree with Archibuteo sancti-johannis, to which both Mr. Ridgway and Mr. Sharpe have referred F. spadiceus as a synonym ; but the species to which Forster refers is undoubtedly Circus hudsonius, Linn., and therefore the following should be added to tbe synonymy of this latter species, viz. :- Falco spadiceus, J. Forster, Phil. Trans, lxii. p. 382 (abr. ed. xiii. p. 331) (1771); Gmel. Syst. Nat. i. p. 273 (1788). Buteo spadiceus (Forst.), Vieill. Ois. A m . Sept. i. p. 34 (1807). And the two latter synonyms should be erased from the synonymy of Archibuteo sancti-johannis. 3. Monographic List of the Coleoptera of the Genus Plusiotis of America, north of Panama, with Descriptions "of several new Species. By ADOLPHE BOUCARD, C.M.Z.S., &c. [Received February 16, 1875.] (Plate XXIII.) Plusiotis is a genus of Coleopterous insects belonging to the true Rutelidse-the second group of the ninth tribe of Scarabseidse, according to Lacordaire. It is properly placed by this eminent author between Chalcoplethis and Chrysina. I say Chrysina instead of Chrysophora, because the latter genus is more naturally placed after Chrysina. It is very closely allied to the genus Pelidnota, from which it differs only in the mandibles being rounded outwardly, with the extremity obliquely truncated (see Plate XXIII. fig. 2) instead of being bidentated (as in fig. 1). Besides, the clypeus in Pelidnota is of variable form according to the sex, whilst in Plusiotis it is alike in both sexes. |
