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Show 1877.] COLLECTION M A D E BY H.M.S. 'PETEREL.' 87 LEPIDOPTERA. 1. DEIOPEIA ORNATRIX, var. Noctua ornatrix, Linnaeus, Syst. Nat. ii. p. 829. One specimen, Albemarle Island, June 23, 1875. This is the less heavily marked form of the species, also taken in the Galapagos Islands by Darwin. 2. CYDOSIA SYLPHARIS, sp. n. Primaries dark metallic green; an abbreviated subcostal longitudinal streak, a much longer longitudinal submedian streak, an interrupted longitudinal internal streak, a basicostal litura, several costal spots, a large oblique subapical spot, and a congregation of dots upon the disk towards the external angle silvery white; a spot above the end of the cell, and a second at external angle, bright golden; secondaries hyaline whitish, the veins brown; the borders brownish grey, diffused internally ; discoidal cell and area beyond it greenish iridescent; thorax metallic green, spotted with white ; body bronzy, greenish towards its anal extremity, white at the sides, primaries below shining brown, secondaries hyaline, with the veins and borders brown ; pectus brown, spotted with white, anterior coxae golden ; venter bronzy green, with a central series of large white spots; expanse of wings 1 inch 2 lines. One example, Albemarle Island, June 23, 1875. This and the preceding species, although sent in spirit, are in very fair condition. There are also in Commander Cookson's collection two larvae of a Sphinx moth, two of a Geometer, and a pupa of (apparently) a Pyralide, from Charles Island. ORTHOPTERA. 1. PANCHLORA SURINAMENSIS. Blatta surinamensis, Linnaeus, Syst. Nat. ii. p. 687. Charles Island (2 adult, 2 immature). 2. PERIPLANETA AMERICANA. Blatta americana, Linnaeus, Syst. Nat. ii. p. 687. Charles Island (2 adult examples). 3. AGROLCIA COOKSONII, n. sp. 2 • Above piceous or black, mottled with testaceous ; head almost uniformly black ; frons castaneous, testaceous at the sides; mandibles black, castaneous at the base ; under surface of the body testaceous ; oviduct testaceous, its outer half blackish along the margins. Head dull, nearly smooth, rather broader than the prothorax, an obtuse prominence between the antennae; antennae about twice the length of the body ; eyes very prominent; frons shining, punctured in the middle ; mandibles deeply grooved externally ; thorax rugose, with lateral carina; wings undeveloped; abdomen obovate, dorsally |