Genera and Species of Coleoptera. 37 
which are interrupted posteriorly by a deep irregular cleft completely 
dividing the four central costz, but less perfectly each of the lateral 
ones, the fissure moreover in their case extending forward to near the 
middle of the side, where it forms a deep notch ; scutellum punctiform ; 
elytra elongate-ovate, deeply and broadly sulcated, the sulcations pitted 
with large squarish punctures, the interstices strongly raised and 
minutely crenate ; prosternum coarsely punctured, with a pale curved 
seta arising from each puncture; meso- and metasternum and abdomen 
with very large scattered punctures; anterior coxe widely apart; legs 
rather robust; the protibize with two distinct spines; the tarsi short, 
with the claw-joint shorter than the three preceding ones. Length 
13 line. 
On Plate III. fig. 7, I have represented the trophi of a species of 
Dastarcus, Walker. They are from a specimen given me by Mr. 
Bowring, who took several individuals at Penang. They differ from 
Dastarcus confinis, Pasc., only in their smaller size, and may safely 
be referred to that species. The only points I would call attention 
to, at present, are the central insertion of the maxillary palpus 
(owing, apparently, to a dilatation of the external lobe and its stipes) 
and the large hook-shaped apex of the internal lobe, not very plainly 
distinguishable in the figure, owing to the fringe of hairs which 
borders it, but perfectly distinct in the original. 
PrratopHora [ Colydide ]. 
Westwood, Cabin. of Orient. Entom. p. 85. 
Petalophora brevimana. (PI. II. fig. 9.) 
P. nigra, subnitida; prothorace haud canaliculato; elytris singulis sex- 
costatis; tibiis anticis breviusculis. 
Hab. Borneo (Sarawak). 
Black, slightly nitid, with the antenne and palpi reddish pitchy ; 
head rather coarsely punctured, slightly produced below the eyes, 
with a strongly elevated mesial ridge ; epistome not apparent ; labrum 
transverse, subemarginate (not semicircular), fringed with golden-yellow 
hairs; antennze fully exposed at their insertion, the club compressed 
and covered with short hairs; prothorax turgid, subquadrangular, 
gradually narrower towards the base, the sides straight, the front irre- 
gular, very obtuse, with a small vertical tooth on each anterior angle ; 
the disk coarsely punctured, not canaliculate, but furnished with a 
central line, on each side of which at the base are two short diverging 
ridges; scutellum small, triangular; elytra parallel, gradually rounded 
at the apex, broader than the prothorax at its base, each with five 
strongly marked coste (including the sutural) extending its whole 
length, and another less marked and shorter at the side, the intervals 
coarsely punctured; legs robust, the anterior tibie very broad and 
