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Show 1 877.] COLLECTION MADE BY H.M.S. ' PETEREL.' 81 1. DOCEMA GALAPAGOENSE, G. R. Waterh. Haltica galapagoensis, G. R. Waterh. Ann. and Mag. N. H. 1845, xvi. p. 39. Hab. Charles Island (G. Darwin). 2. LONGITARSUS LUNATUS, sp. n. Ovalis, convexus,piceo-testaceus, nitidus; thorace convexo, latiore quam longiore, postice parum angustato, fere leevi; elytris basi thorace vix latioribus, medio rotundato-ampliatis, crebre evidenter punctatis, lunula communi picea notatis. Long. 1^ millim. Closely resembles L. ballotee, Marsh., in form and general appearance. The antennae are nearly the same ; but the second joint is a little more pear-shaped; and the third is as long as the second, but more slender. The thorax is a trifle less broad, and not visibly punctured. The elytra are very convex, much rounded at the sides, broadest across the middle, the shoulders almost completely effaced ; the surface is somewhat uneven, which makes the punctuation less distinct; and the punctures are rather closer and finer than in L. ballotee; a lunate pitchy band is placed across the middle. Hab. Charles Island (C. Darwin). GALERUCIDA. DIABROTICA LIMBATA, sp. n. Nigra, nitida; thorace pallide flavo; elytris piceis, obsolete costatis, inter coslas irregulariter biseriatim striato-punctatis, apice leevi, marginibus flavis; antennis basi pedibusque obscure testaceis, tarsis fuse atis. Long. 2 lin. Head shining black. Thorax scarcely broader than long, a little narrowed towards the base, pale yellow, with two well-marked depressions on the disk. Elytra pitchy; at their base not quite twice as broad as the thorax, rather broader behind, obsoletely costate towards the sides, with double irregular lines of distinct (but rather fine) punctures between the costae ; the apex nearly smooth ; the margins pale yellow, the yellow part widening at the apex. Legs yellowish, the knees and tarsi slightly dusky. Hab. James Island (C. Darwin). The following are the species of Coleoptera known to me to have occurred in the Galapagos Islands. 1. Albemarle Island. Corynetes rufipes, Fabr. 2. James Island. Notaphus galapagoensis, G. R. Waterh. Dermestes vulpinus, Fabr. Ablechrus darwinii, C. Waterh. Corynetes rufipes, Fabr. Ammophorus bifoveatus, G. R. Waterh. PROC. ZOOL. Soc-1877, No. VI. 6 |