jan. — MATt. 1857 ] Descriptions of new Ceylon Coleoptera. 195 



(b.J Mesosternal carina middling, grooved. 



33. Scydmcenus intermedins. N. 



S. alati statura sed major et robustior, colore obscuriore ; long, 

 corp. f lin. 



Antennae art. 1° apice biacuminato, 2 et 5, 3 et 4, 7 et 8 inter se 

 subaequalibus, 6 quarto paulo minore, obovato, 7-8 subglobosis apice 

 oblique truncatis, 9-11 gradatim majoribus, obovatis, clavam for- 

 mantibus, 11 acuminato. Palpi maxill. art. 3° obovato, 4° mini- 

 mo semigloboso. Thorax subrotundatus, basi 4-foveolatus. Elytra 

 apice singulatim rotundata. Pedes tarsis art. 1-4 gradatim mino- 

 ribus vel 2-3 subsequalibus, 4 anterioribus intus pilosis. Mesos- 

 ternum sat for titer earinatum, carina dor so deplanata, fossulata 

 apice acuminata. 



This species stands in the middle between & alutus and psela- 

 phoides. To the former it is allied by its general appearance rather 

 than by anything else, differing from it very much in the structure 

 of the antennae and the mesosternal carina. To the latter on the 

 contrary it is allied by similarity in the structure of the said 

 carina, differing, however, from it in general appearance. The 

 color is that of S. alatus but a shade or two darker, the insect, 

 being at the same time larger and altogether more robust. The 

 eyes are small. Antennal club 3-jointed, the joints forming it 

 gradually increasing in size, obovate,flat at the base, the last acumi- 

 nated. Scutellum obsolete. Elytra with 2 slight basal impressions, 

 the traces of a humeral costa, separately rounded off at the apex. 

 Legs elongated as usual ; 2 posterior coxae distant, tibiae straight, 

 subcylindric but not narrowed at the apex, the 4 anterior ones hairy ; 

 tarsi with joints 1-4 almost imperceptibly decreasing in size or per- 

 haps 2-3 equal, the anterior ones slightly contracted, these and the 

 intermediate ones hairy on the inside. Mesosternal carina mid- 

 dling, flat on the back with a shallow, but very distinct, longitudinal 

 groove or excavation, anterior part projecting, acuminated. 



34. Scydmcenus pselaphoides. N. 



S. subpyriformi — ovatus, subconvexus, magis minusve brunneus, 

 pedibus antennisque subtestaceis, femoribus apice nigrescentibus, 

 tarsis palpisque testaceis ; flavo-pubescens long. corp. 1-1| lin. 



