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Show 1881.] THE SURVEY OF H.M.S. 'ALERT.' 85 Six HEMIPTERA were obtained, of which one appears to belong to a new species of Sciocoris; three are referable to a known species of Halobates, one is a new genus of Membracida?, and one a small Lassus. A single A N O P L U R O N was taken, referable to the genus Trinoton. B. ORTHOPTERA. XlPHOCERID^E. 1. X I P H O C E R A , sp. inc. (immature). " St. Vincent, near the beach, 24th October, 1878 ; Puerto Bueno, Straits of Magellan, on shore near freshwater pools." G3DIPODIDJE. 2. GSDIPODA AURIFERA. (Edipoda aurifera, Walker, Derm. Salt. iv. p. 735 (1870). Epacromia collecta, Walker, op. cit. v. p. 85 (1871). St. Vincent, Cape-Verd Islands, from sandy patches, 24th October, 1878. Walker at first rightly identified this species with the genus (Edipoda, but remarked, " this species has some affinity to the genus Epacromia;" subsequently he described a smaller example as an Epacromia, and observed that " this and the preceding species differ much in structure from each other, and from the typical form of Epacromia, and may be considered as the representatives of two new genera." 3. CTYPOHIPPUS ARENIVOLANS, sp. n. Apparently nearest to " (Edipoda ochraceipennis" of Blanchard, from Chili; also somewhat similar to " (E. chloris." Head and pro-notum greenish yellow, with a lateral longitudinal stripe of black, varied with reddish brown ; on the head this stripe encloses an ochraceous line; pronotum flat, slightly elevated at the sides, crossed in the middle by a linear transverse impression, and with a central longitudinal carina ; abdomen shining, olivaceous, banded indistinctly with testaceous, and mottled at the sides with castaneous ; anterior and middle pairs of legs castaneous, posterior legs with the femora greenish testaceous, a series of black spots just above the infero-exterior longitudinal carina towards the base ; tibia? and tarsi rust-red, the spines tipped with black : tegmina with the basal six thirteenths flesh-coloured, with a longitudinal internal green streak and two transverse dark-brown bands, the inner one interrupted by the green streak, the outer one abbreviated ; base slightly brown-speckled ; remainder of tegmina hyaline white, with ochraceous veins, the cross veinlets black here and there, so as to produce the effect of indistinct greyish spots: wings hyaline white, slightly tinted with yellow towards the base, and crossed from the posterior angle to the centre of the anterior margin by a very slightly interrupted arched blackish |