422 Mr. J. Nietner on new Ceylon Coleoptera. 



the same time more and more oval) ; joint 3 is the shortest, 

 2 and 4 are rather longer than the others. The back is impressed 

 with 3-4 distinct strise on either side of the suture, the external 

 ones being obsolete, as are also the remaining ones towards the 

 apex. There is an additional deep stria within the marginal 

 one, extending from the middle to the apex. Before the middle 

 and before the apex there is a puncture situated upon the 4th 

 interstice ; the ante-apical one of these has a hair in the centre, 

 and is prolonged to the apical angle in the shape of a deep, 

 curved furrow. This being the case on either side, the two fur- 

 rows together form a semicircular figure. The tarsi are each 

 furnished with bristles, especially at the lower margin of the 

 apex of the joints. In the four anterior tarsi joint 4 is furnished 

 at that place with two long bristles, the apex of which fits-in at 

 the base of the claws. These bristles partake somewhat of the 

 nature of squamulse, by being dilated in the shape of a lancet. 

 I have noticed them occasionally to be bifid at the apex, but I 

 do not think that they are so always. 



72. Bembidium triangulare, N. 



B. oblonguTn, depressum, testaceum, capite brunneo, elytris sutura 

 fasciaque lata transversali media nigris, pedibus, palpis antenuisque 

 pallida testaceis, his medio fuscescentibus. Long. corp. 1 lin. 



Prsecedenti affine, ejus capite, thorace et tarsis ; differt thorace 

 linea basali punctata, infra lineam vix strigoso ; elytris utrinque pro- 

 funde 6-punctato-striatis, striis apicem marginemque versus sensim 

 obsoletis, ante medium in stria 4^ puncto impresso, stria infra- 

 marginali abbreviata et impressione semicirculari apicali ut in prsece- 

 dente. 



Variat colore obscuriore. 



In prov. occid. communissimum. 



Very closely allied to the preceding species, but easily distin- 

 guished by the size and colour, which is generally lighter than 

 that of the former, and the deeply striated elytra ; the insect is, 

 moreover, more common than the former. The prevailing colour 

 of the elytra is not, as in the preceding species, black, but it is 

 that of the rest of the body, yellowish, with merely a black 

 suture and black belt across the middle ; the edges of this belt 

 are washed together with the colour of the adjoining parts. 

 The semicircular impression at the apex of the elytra is the same 

 as in the former, and forms, with the abbreviated inframarginal 

 stria, which is also the same, a triangular figure, tip down, base 

 open, whence I have derived the name. The head, with the 

 antennae, tarsi, &c., are those of the former, as I have said 

 above. 



