272 Mr. J. Nietner on new Ceylon Coleoptera. 



Lima excavata. Cardium nodosum. 



Limopsis, sp. suecicum. 



Modiola phaseolina. fasciatum. 



Crenella decussata. Lucina flexuosa. 



discors. ferruginosa. 



nigra. Astarte sulcata. 



marmorata. crebricostata. 



Area pectunculoides. Venus ovata. 



Nucula tenuis. Tellina proxima. 



corticata. SjTidosmja intermedia . 



Leda pernula. Nesera cuspidata. 



oaudata. Thetis Korenii. 



lueida. Saxicava arctica. 



pygmaea. Thracia convexa. 



limatula. Lyonsia striata. 



XXVII. — Descriptions of new Ceylon Coleoptei-a. 

 By John Nietnek, Colombo, Ceylon. 



[Continued from p. 190.] 



43. Cyclosomus dj/ticoides, N. 



C. suborbicularis, depressus, obscure castaneus, elytris piceis fasciis 



2 testaceis ornatis, pedibus brunneo-testaceis, tarsis, aatennis ore- 



que magis miiuisve brunneis. Loug. corp. 4^—5 lin. ; lat. 2^-3 lin. 



Antennae art. 3-11 depressis. Thorax transversus, antice profunda 



semilunariter sinuatus ; basi quadratus, medio leviter subquadrate 



emaro-inatus, elytris parum angustior, ante scutellum subtiliter stri- 



gosus ; apicem versus sensim angustatus. Elytra basi subquadrata, 



striata, fasciis 2 (una subhumerali, altera subapicali) transversalibus, 



interruptis, interstitia 2-8 occupantibus, testaceis ornata. Pedes 



tibiis apice 2-calcaratis, calearibiis 2-serratis, tarsis maris 2 anterio- 



ribus art. 1-3 suhtus leviter dupliciterqiie penicillatis, intermediis 



fortiter simpliciterque penicillatis. Prosternum subhastatum. 



In prov. occid. arenis peraridis Amararum more victitat. 



To judge from what Lacordaire says of this genus in his 'Genres 

 des Coleopteres^ (a work which, as I have said elsewhere, I look 

 upon as containing the essence of all former researches), it would 

 appear that the present species differs very materially from the 

 three others hitherto described, namely in the flatness of the 

 antennal joints, in the serrated edges of the tibial spm's, in the 

 existence of the tarsal brushes in the male, and in the colour, — 

 to say nothing of some other minor distinctions. The first three 

 of these peculiarities (too important not to have been noticed by 

 Lacordaire or any other describer of the genus, had they been 

 aware of them) add considerably to the characteristics which 

 already constitute this genus one of the most remarkable of the 

 extensive family of the Carabidae, whilst through the colour of 



