36 Mr. F. P. Pascoe on some new or little-known 
one at the base, the first stria much deeper than the others; body 
beneath chestnut, finely and remotely, the mesosternum and last four 
abdominal segments coarsely punctured; legs stout; tibize short, all 
strongly spurred, the anterior and intermediate pairs trigonate, dilated 
and toothed externally; tarsi nearly as long as their corresponding 
tibie. Length 3 lines. 
This species is also referred doubtfully to Bothrideres, principally 
on account of the large terminal joint of the club, and the short and 
unusually trigonate tibize ; these characters are, however, chiefly ones 
of degree, and not of plan. An examination of the trophi (which, 
as the specimen is unique, I have not attempted) might probably 
afford stronger grounds for its generic separation. 
Macatores [Colydiide }. 
Caput receptum, triangulare, sulcis antennariis. Antenne breves, articulo 
primo incrassato, libero, clava biarticulata. Prothorax sulcatus, postice 
transversim fissus. Elytra ovata, costata. Pedes robusti; protibiis sub- 
trigonatis, anterioribus spina terminali; tars?s brevibus. 
A very distinct genus, although, from its widely separated cox 
and large basal segment of the abdomen, allied to Bothrideres. The 
sculpture of the prothorax is, however, peculiar, owing to the pre- 
sence of a deep transverse cleft posteriorly, dividing, and even dipping 
below the longitudinal grooves by which the disk is indented. I 
regret that, having only a single specimen, for which I am indebted 
to Mr. Bowring, I cannot throw any light on the structure of its 
mouth, which might perhaps have afforded some clue to its affinities ; 
but if it has no connexion with Dastarcus—and even in that case it 
cannot be a near one—it must remain for the time an isolated genus 
among the Bothriderine as they have been defined by Erichson. 
Machlotes porcatus. (PI. III. fig. 13.) 
M. fuscus, opacus ; prothorace utrinque tricostato ; elytris profunde sulcato- 
punctatis, interstitiis elevatis. 
Hab, Penang. 
Dark brown, opake, the antennz and legs subrufous ; head inserted 
to the eyes in the prothorax, small, and coarsely punctured; antennz 
not longer than the breadth of the head, uncovered at their insertion, 
the basal joint very thick, the remainder more or less transverse, the 
tenth and eleventh forming a short circular club, of which the last joint 
is much the smallest; antennary grooves well marked; eyes round ; 
prothorax about half as long again as broad, narrowed behind, truncate 
and a little gibbous in front, slightly rounded at the sides, the anterior 
angles prominent,—the disk with three very strong costze on each side, 
