JAN.— MAR. 1857 ] Descriptio7is of new Ceylon Coleoptera. 195 
{h.J Mesosternal carina middling ^ grooved, 
33. Scydmcenus intermedius. N. 
S. alati statura sed major et robustior, colore obscuriore ; long, 
corp. J lin. 
Antenna? art. 1° apice biacuminato, 2 et 5, 3 et 4, 7 et 8 inter se 
subsequalibus, 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 subrotuncjatus, basi 4-foveolatus. Elytra 
apice singulatim rotundata. iPedes tarsis art. 1-4 gradatim mino- 
ribus vel 2-3 subsequalibus^ 4 anterioribus intus pilosis. Mesos- 
ternuni sat fortiter cariijatum, carina dorso deplanata^ fossulaia 
apice acuminnta. 
This species stands in the middle between S. alatus 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. iV. 
S. subpyriformi — ovatus, subconvexus, magis minusve brunneus, 
pedibus antennisque subtestaceis, femoribus apice nigrescentibus, 
tarsis palpisque testaceis ; fiavo-pubescens long. corp. 1-1 J lin. 
