APRIL— JUNE, 1857.] Descriptio7is of new Ceylon Coleoptera. 53 
infra med. fortius angustatus, basi parum prolongatus. Pedunculus 
brevis. Elytra apicem versus leviter dilatata, apice fortiter subqua- 
drate truncata. Pedes robusti, simplices, subaequales, ant. tibiis 
profunda excavatis, omnes tarsis brevibus art. 1° sequentium 2 fere 
longitudine, subcylindrico, 2 3 gradatim minoribus, magis minusve 
triangularibus, 4° magn^, profunde bilobo, 5° mediocri, unguibus 
siraplicibus, art. 4° subtus dense penicillato. , 
44. Creagris lahrosa N. 
C. picea, ore antennisque, coxis, trochanteribus femorum tibia- 
rumque apice r,t tarsis brunneis ; dense punctata obsoleteque pu- 
bescens ; elytris striatis ; long. corp. 4 J lin. 
Specimen singulum prope Colombo nocte ad lumen cepi. 
I consider this scarce and interesting insect to form a passage be- 
tween the Lebiid^ and Pericalid^, but am doubtful to which of 
these two tribes to refer it as, although it partakes of the character- 
ristics of either, it is at the same time distinct from both. Distin- 
guished in several respects, its most extraordinary character lies in 
the curious shape of the mentum. This is, however, easily describ- 
ed as large, of the shape of a horseshoe with a long, thin, very point- 
ed tooth in the middle, the apical half of the sides (lobes) being at 
the same time gently dilated, the apex itself being obliquely cut 
away from the outer towards the inner side (the inner angle being 
the most advanced) and slightly dentated at the edge thus formed. 
Or it may also be described as a fork with the outer teeth some- 
what enlarged, truncated at the apex and so forth. As far as I 
know, this variation from the usual form of the mentum is re- 
peated in no other Carahideous insect. The other parts of the 
mouth have not much to distinguish them with the exception, how- 
ever of the labrura which attains a very extraordinary degree of de- 
velopment occupying rather more than one-third of the ivhole head^ 
although the latter itself is large and heavy. It is of a suborbicular 
shape, very slightly produced in front into an obtuse p^igle, is vault- 
ed, covers the mandibles, has two longitudinal impressions at the 
sides of the base and is highly polished. The head has two im- 
pressions in front of the eyes, is densely punctured and thinly 
pubescent, it is strongly but gradually contracted behind the eyes 
