COLEOPTEROUS FAMILY PAUSSID 4%. 163 
rather opaque, with the lateral margins rounded; the posterior 
portion is very short and narrow, but distinct, and separated from 
the anterior part by a nearly straight line. The elytra are glossy 
and castaneous, one-third wider than the prothorax, being rather 
longer than broad ; each is furnished at its outer posterior angle 
with a small mamillated tubercle, the sides of which are raised so 
as to give it the appearance of a spiracle; the femora and tibiz are 
very broad, short and depressed; the latter subobliquely truncated, 
the fore posterior being furnished with two calearia ; the tarsi are 
short and cylindrical, ciliated beneath, distinctly five-jointed, the 
first joint being the thickest and the fourth the shortest; the basal 
joint in the anterior tarsi is shorter than in the other feet. 
Fig. 2a, underside of head; 20, maxilla; 2c, labium and palpus ; 
2d and 2e, antenna in different points of view; 2f posterior tibia 
and tarsus. 
Species VITI.—Pratyruopatus apLustrirerR Westw. (Plate 88, fig. 3.) 
P. depressus, rufo-fulvus antennarum clava lata fere plana externe spinis duabus acutis, pro- 
thorace brevi plano lateribus antice rotundatis postice dilatatis, angulis posticis semicir- 
culariter emarginatis, tibiis ad apicem externe acute spinosis. 
Long. corp. lin, 33. 
Platyrhopalus aplustrifer, Westw., Linn. Trans. xvi. p. 664, pl. xxxiii., fig. 51. 
Habitat Bengalia. Mus. Britann. and Westermann. 
This extraordinary species was first described by me from a 
somewhat mutilated specimen, in the British Museum, of unknown 
locality, so that I was unable to determine its legitimate situation. 
M. Westermann having, however, had the kindness to forward me 
a specimen, contained in his fine collection, from Copenhagen, for 
examination, I am enabled to give a more correct representation 
of it, and to speak of its true relationship to the present genus with 
decision. It is depressed, smooth, very slightly pubescent, and of a 
testaceous-fulvous colour; the head is short and almost rounded in 
front, and scarcely emarginate, convex, and with the disc entire. 
The antenne are slightly pubescent, with the clava large, somewhat 
ovate, very compressed, with the anterior margin slightly rounded, 
the apex rounded, and the outer or upper edge produced into two 
long and very acute spines; the space between which is strongly 
emarginate, and between them and the base of the clava are two 
small impressions which seem to indicate rudimental articulations. 
The mandibles are curved and acute at the tips; the maxillary 
palpi have the second joint very broad, and acutely produced into 
a strong point at the inner extremity; the labial palpi arise from 
mM 2 
