Genera aiid S^tecies of Coleoptera. 15 



which are iulenupted posteriorly by a deep irregular cleft completely 

 dividing the four central costa^ but less perfectly each of the lateral 

 ones, the tissure moreover in their case extending forward to near the 

 middle of the side, where it forms a deep notch ; scutellum punctiform ; 

 elytra elongate-ovate, di'eply and broadly sulcated, the sulcations pitted 

 with large squarish punctures, the interstices strongly raised and 

 minutely crenato ; prosternum coarsely punctured, with a pale curved 

 seta arising from each pimcture ; meso- and metastemum and abdomen 

 with very large scattered punctures ; anterior coxae widely apart ; legs 

 rather robust ; the protibiiu with two distinct spines ; the tarsi short, 

 with the claw- joint shorter than the three preceding ones. Length 

 1^ line. 



On Plate III. fig. 7, I have represented the trophi of a species of 

 Dastarcits, Walker. They are from a specimen given me by Mr. 

 Bowring, who took several individuals at Penang. They differ from 

 Dastarcus conjinis, Pasc, only in their smaller size, and may safely 

 be referred to that species. The only points I w^ould 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. 



Petalophora [Colydiidae]. 

 Westwood, Cabin, of Orient. Entom. p. 85. 



PetalopJiora brevimana. (PI. II. fig. 9.) 

 P. nigra, subnitida ; prothorace hand canahculato ; elytris singulis sex- 



costatis ; tibiis anticis breviusculis. 

 Hub. Borneo (Sarawak). 



Black, slightly nitid, with the antennae and palpi reddish pitchy ; 

 head rather coarsely punctured, slightly produced below the eyes, 

 mth a strongly elevated mesial ridge ; epistome not apparent ; labrum 

 transverse, subemarginate (not semicircular), fringed A\dth golden-yellow 

 hairs ; antenufe fully exposed at their insertion, the club compressed 

 and covered vdih 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 punctiu-ed, not canaliculate, but furnished with a 

 central line, on each side of which at the base are two short diverging 

 ridges ; scutellum small, tiiangular ; elytra parallel, gradually rounded 

 at the apex, broader than the prothorax at its base, each with five 

 strongly marked costae (including the sutural) extending its whole 

 length, and another less marked and shorter at the side, the intervals 

 coarsely pimctured ; legs robust, the anterior tibiae very broad and 



