62 PACHYONYCHIA. 



Antennas (Tab. II. fig. 7 a) short, robust, gradually dilated towards 

 the apex ; the basal joint is longer than the others, and broad ; the 

 second (not thick, ovate, and shorter than the rest, but) narrow, and 

 of length equal to that of the apical joints ; the third and fourth sub- 

 equal in length, attenuated at the base, the fourth being almost longer 

 than the third ; the fifth and following are gradually dilated, monili- 

 form, short, robust (the breadth being equal to the length), rounded 

 at the base and transversely truncate at the apex ; the whole (when 

 viewed under a high power) very finely pubescent : the antennae are 

 in their insertion approximate, and situated between (not below) the 

 inner margins of the eyes. 



Eyes large, globose, situated at the base of the head, and not ex- 

 tending laterally as far as the anterior angles of the thorax. 



Head very short, transverse, inclined at right angles to the plane 

 of the elytra ; not produced in front. 



Thorax transverse, almost quadrate, broader than the head, in 

 front hardly perceptibly emarginate ; the sides are gradually con- 

 stricted in front, and immediately within the anterior and basal 

 angles coarctate, so as to give an angular or subcircular form to the 

 middle ; the anterior angles are subacute and considerably depressed ; 

 the surface is smooth and glabrous. 

 Scutellum subtriangidar, convex. 



Elytra broad, depressed, broader than the thorax, the sides sub- 

 parallel, and evenly marginate. 



Legs : the anterior femora robust. The tibiae inflected at their 

 immediate base, and gradually thickened towards the apex. The 

 tarsi (Tab. II. fig. 7 d) are short and sufficiently robust ; the basal 

 ioint is dilated, broader than the apex of the tibia, rounded at the 

 base, and in front transversely truncate, convex (rather than flattened, 

 as in other groups) ; the second is minute, triangidar, very consider- 

 ably smaller than the first ; the third is equal to the second, deeply 

 bilobed, and fringed at its margin with rigid pubescence ; the fourth 

 is elongate and attenuated, gradually thickened, and incurved to- 

 wards the extremity ; the apical claw is bifid. The posterior femora 

 are broadly incrassated, gradually tapering towards the apex. The 

 tibia} (Tab. II. fig. If) are short, distinctly inflected at their imme- 

 diate base, and sensibly thickened towards the apex, which is ob- 

 liquely truncate, terminating, behind the insertion of the tarsi, in a 

 single, robust, tooth-like spur. The tarsi are short ; the first joint 

 broad and triangular ; the second more minute ; the third subcir- 

 cular and bilobed, margined with rigid pubescence ; the apical joint 

 is attenuate, and produced ultimately into a globular inflation which 

 completely conceals (from above) the terminal claw ; the claw is 



