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Show 534 MR. F. P. PASCOE ON THE COLEOPTERA OF PENANG. [Nov. 22, been separated from Euryphagus by M. J. Thomson, principally on account of the greater length of the posterior legs, and their simple, almost linear femora. CERASPHORINJE. STROMATIUM. Stromatium, Serville, Ann. Soc. Ent. de Fr. iii. p. 80. STROMATIUM ASPERULUM, White, Cat. Long. Brit. Mus. p. 300. A common Malay species, found also at Hong Kong. In Mr. Wallace's collection there are specimens from Macassar, Amboyna, Batchian, and Banda. NOSERIUS. Noserius, Pascoe, Trans. Ent. Soc. ser. 2. iv. p. 95. NOSERIUS TIBIALIS, Pascoe, I. c. pi. 23. f. 4. Mr. Lamb's specimen differs from m y type in being more rufes-cent, the prothorax less transverse, and the third joint of the antennae only being dusky. It was one of Mr. Wallace's captures in Borneo. GNATHOLEA. Gnatholea, J. Thomson, Essai, & c , p. 375. GNATHOLEA EBURIFERA, J. Thomson, I. c. The male of this remarkable species has the mandibles prolonged and their upper surface so raised as to enclose the lip behind them. The elytra have two or more raised ivory spots, as in the South American genus Eburia and its allies. XYSTROCERA. Xystrocera, Serville, Ann. Soc. Ent. de Fr. iii. p. 69. XYSTROCERA GLOBOSA. Cerambyx globosus, Olivier, Entom. iv. no. 67. p. 27, pi. 12. f. 81. A well-known insect, extending from the Isle of France to India and Java. XYSTROCERA ALCYONEA. Viridi- vel cyaneo-metallica; antennis articulis quinque basalibus tuber culato-spinosis. Glabrous, shining, metallic green or blue ; head with oblong punctures between the eyes, the intervals with fine vertical corrugations, the punctures on the vertex crowded, the intervening lines becoming rather oblique towards the median groove; prothorax slightly broader than long, transversely corrugated, the middle of the disk near the anterior impressed line smooth and impunctate, on each |