276 Mr. J. Nietner on new Ceylun Coleoptera. 



anteriorem longe superantibus. Palpi robusti, art. 4" elongato, tenui, 

 acuminato ; maxillares art. 3° interne, 2° externe incrassato ; labiales 

 art. 3° robusto, externe incrassato, 2° parvo, cylindrico. Labrum 

 parvum, subtrigonum, antice emarginatum. Mandibulce elongatae, 

 rectse, trigonal, apice arcuatre, infra medium pluries dcntatse. An- 

 tennae robustse corporis med. fere attingentes, art. 1° et 11° medio- 

 cribus, subseqnalibus, 2-4 et 5-10 inter se subtequalibus, illis sub- 

 cylindricis, his ovatis. Thorax subcordatus, basi quadratus. Pedun- 

 culus brevis. Elytra apice rotundata. Pedes omnes simplices, sub- 

 sequales, anteriores tibiis profunde excavatis, tarsis leviter contractis, 

 art. 1—4 gradatim minoribus, art. 1° subcylindrico, 2-4 subtrigonis, 

 5° sat magno, ungiiibus simphcibus. 



44. Ochthephilus Cerjlanicus, N. 



O. brunneo-testaceus, pedibus palpisque testaceis, tenuiter pubescens ; 

 fronte profunde 2-sulcata ; elytris obsolete striatis, in striis punc- 

 tatis. Long. corp. 1^ lin. 



In fluminum ripis Bembidionim more \ictitat. 



This interesting little beetle might at first sight be mistaken 

 for a Lcemophloeus, of which it has the size, depressed form, and 

 colour; the prominent eyes, hov,ever, and cordate thorax — to 

 say nothing of its habitat — remind one very soon of its real 

 connexions. I do not think there can be any doubt that this 

 insect forms a new and interesting addition to the Bembidiidse. 

 In fact, the question whether it belongs to this tribe or not, 

 depends, in my opinion, mainly upon the inferences drawn from 

 the structure of the terminal joint of the palpi. It is true that 

 this joint attains in Ochthephilus a degree of development un- 

 equalled amongst the Benibidiidse ; as, however, this development 

 is not confined to the one particular joint alluded to, but afi'ects 

 the entire organ of which it forms a part, it can hardly be said 

 to be a variation of much importance ; and as, moreover, the 

 general shape (independently of the elongation) and mode of 

 insertion are the same as in the typical Bembidiidse, I have not 

 hesitated to refer my new genus to this tribe. 



The head is as broad as the thorax, and altogether of about 

 the same size ; it is strongly triangular from the eyes to the tip 

 of the mandibles ; the forehead is impressed with two deep lon- 

 gitudinal furrows ; the eyes are large, rather oval and promi- 

 nent ; behind them the head is abruptly contracted into a thick 

 neck. The antennae are long and thick, reaching nearly to the 

 middle of the body; joints 1 and 11, 2, 4, 5-10 are subequal 

 amongst themselves, 5-11 oval, 1-4 subcylindric. The labrum 

 is small, rather triangular, being narrowed at its base; it is 

 emai'ginated in front, with a slight angle in the middle of the 

 emargination. The mandibles are long, straight, triangular. 



