ALBERT

Description: With the kind permission of the Director of the Leiden Museum and the able assistance of Mr. H. C. BL\xc3\x96TE, to whom I am much indebted for his services; some hundreds of specimens of undetermined Sumatran Carabidae have, during the past few months, been sent to me for indentification. Among these I have found examples of one new genus and ten new species, which are described in the succeeding pages. Some of these species were represented only in the Leiden Museum, but of others I found specimens in the collection of the F. M. S. Museum, Kuala Lumpur, while my own collection contained examples of four of them. Some of the type specimens are in the Leiden Museum, some in the British Museum, and some in my collection, as mentioned at the close of the respective descriptions.\nTachys bl\xc3\xb6tei sp. n.\nLength: 2.4 mm.\nBrownish red, joints 2 to 5 of antennae and disk of elytra a little darker, apex of elytra paler, joints 6 to 11 of antennae yellowish white.\nHead with deep single furrows, diverging behind, eyes moderately prominent, mentum with two pores, antennae filiform, joint 2 a little longer than 3. Prothorax cordate, a half wider than long, sides strongly rounded, sinuate close to base, which is barely as wide as apex, hind angles sharp, slightly acute, strongly reflexed, projecting a little laterally, without carina; median line fine, basal sulcus deep, punctate, interrupted, and with a large pore at middle. Elytra moderately convex, with square shoulders, two fifths longer than wide, border neither dentate nor perceptibly setulose, rounded at shoulder and reaching stria 4; striae 1 and

Description: In the first part of this paper the species of a few of the larger genera among Sumatran Carabidae have been tabulated, either because no Keys exist already, or because the old Keys have become obsolete.\nThe four genera included here are Colpodes, Orthogonius, Catascopus, and Dolichoctis, but for various reasons I have not dealt with Clivina, Tachys, Chlaenius, and Perigona. Most of the species of Clivina are included in the Key to the Indian species in my first volume on the Carabidae in the "Fauna of British India" Series, 1929 (p. 353), and nearly all those under Tachys appear in the tables of my "Revision of the Oriental Species" (Ann. Mus. Civ. Gen. LI, 1925, pp. 327\xe2\x80\x94502); the "Tableau Synoptique" in Chaudoir\'s "Monographic des Chl\xc3\xa9niens" (Ann. Mus. Civ.\nGen. VIII, 1876, pp. 11\xe2\x80\x9425) still holds good for the great majority of the species in the genus Chlaenius, and I have myself recently published a "Key to the Sumatran species of Perigona" (Tijdsch. v. Ent. LXXII, 1929, p. 326), which includes all but one species more recently described.\nAfter the Keys there are described in the second part of the paper one new genus and fourteen new species; a considerable number of these come from the collection of the Buitenzorg Museum, the Director of which has very kindly allowed me to retain the type specimens in my own collection, but there are new species from the Leiden, British, Brussels, Genoa, Stockholm, and Federated Malay States Museums, from the collection of the Lyc\xc3\xa9e at Mulhouse, and from my own collection.\nKey to the Sumatran species of Colpodes. 1) 1 (34) Prothorax with two lateral setae on each side; elytra with three dorsal pores.