On new Wood-horing Beetles. 381 distinct apical tooth, wliich is very similar to that which is present in the female ot" //. forniosuSj Butler, is present on the outer side of the iiand below, and a dentiform granule is present on this tooth (Hg.). Hypoctomts birmanicus, sp. n. Chela of male. Onimatoids elongate-ovate, instead of round as in //. bing-huvn; they arc separated from one another by a space which is less than their width. Meukurements in mm. — Total length 23 ; length of tibia of chela b; length of its apophysis 3, of the hand 4*25. Colour the same as II. hinghami, the legs pale red throughout their length. Materidl. An adult male and two immature female specimens from Pegu, Burma (Elorst Coll. ?). LII. — On Two new JVood-boring Beetles (Ipidse). By Lieut. -Col. Winn Sampson, F.E.S. It is now nearly two years ago that I began an exhaustive examination of the Ipidse (until recently called Scolytidie) contained in the British Museum collection, to which have recently been added the specimens collected by Mr. G.Lewis in Japan and Ceylon. ]\[r. Ernest Green has ako been good enough to scud a small number collected by himself in the latter country. The tirst description now given is from a specimen in the Fry Collection, the second from two specimens in Mr. Greenes last consignment. Eccoptopterus Umbus, sp. n. Differt ab E. se.vspinoso, Motsch., truncaturse elytrorum ambitu spina una valida compluribusque minoribus aciitis elevatis iufra ornatis. Peclivitate elytrorum fortiter squamulis hirtis vestita. Patria Perak. Long. 3^ mm. One specimen (c?) in the British Museum.
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