CHLAMYS. 165 
elytra impressed with brown punctures, and each with four longitudinal coste, the first two joined below 
the middle. 
Length 14-2 lines. 
Head with a shallow depression between the eyes, impressed with a few dark brown punctures; antenne 
fulvous, the apical four joints fuscous; thorax of a yellowish-brown colour, rather closely impressed with 
brown punctures at the sides, the middle portion raised into a rounded comparatively slight elevation 
which is limited posteriorly by a constriction or groove, the elevation channelled in the middle and 
bounded on each side by a distinct ridge which extends nearly to the anterior margin (this ridge much 
interrupted at the top and sending off three or four transverse branches which run down each side of the 
elevated portion); elytra subquadrate, opaque, of the same colour as the thorax, with numerous larger 
dark punctures, four longitudinal coste—the first commencing near the scutellum and extending to the 
middle near the suture and joined by a short oblique branch to the second costa immediately below the 
middle, the latter extending upwards to the middle of the base and downwards to a little distance from 
the apex, where it turns outwards, the third costa placed near the shoulder and joining the second before 
the middle (but indistinctly continued posteriorly), the fourth very indistinct, shorter than the third, and 
running from the shoulder obliquely downwards,—a single short tubercular ridge near the suture below 
the middle, a similar ridge marking the apex of the second costa before it turns outwards, and at the 
apical and lateral portions some more or less distinct transverse coste, the suture dentate throughout ; 
pygidium deeply punctured, and furnished with some short ridges ; underside closely foveolate-punctate. 
Hab. Panama, Volcan de Chiriqui (Champion). 
The absence of isolated pointed tubercles from the elytra and the differently sculptured 
thorax separate C. brunnea from C. luteola. The uniformly-coloured upper surface and 
the feebly raised disc of the thorax distinguish the species from most of its allies. 
20 (p). Chlamys insignis. (Tab. XXXIX. fig. 25.) 
Subquadrate, robust, entirely pale ochreous; thorax finely punctured, the base conically raised and the apex 
of the raised part impressed with a fovea; elytra with about ten isolated tubercles, the interspaces remotely 
impressed with brown punctures. 
Length 13-2 lines. 
Head finely punctured, the punctures irregularly distributed ; antenne fulvous, the fourth and following joints 
broadly widened ; thorax finely punctured throughout, the posterior portion gradually raised into a conical 
protuberance, which is slightly foveate at the apex only, the surface of an opaque pale ochreous or 
fulvous colour with indications (in some specimens) of spots at the sides and darker markings ; scutellum 
flavous or ochreous; elytra nearly subquadrate, of the same colour as the thorax, each with ten or twelve 
isolated rounded tubercles placed thus—four nearly parallel with the suture (the second placed close to it), 
four others, forming a second row, three placed triangularly near the apex, and one or two (nearly obsolete) 
anteriorly at the sides,—the interstices remotely impressed with small piceous punctures and the extreme 
basal margin also of that colour, the suture dentate throughout; pygidium, underside, and legs entirely 
flavous. 
Hab. Panama, David, Caldera in Chiriqui, Tolé (Champion). 
This species is perhaps nearest allied to C. luteola, from which the unicolorous upper 
surface, the undivided thoracic elevation, which only at its apex has a shallow groove, 
and the isolated rounded tubercles of the elytra distinguish it; the elytra have the 
usual oblique lateral constriction. 
20 (c). Chlamys prodigiosa. (Tab. XL. fig. 5.) 
Subquadrate, flavous, spotted with black; thorax with two crests, each divided at the top; elytra with five or 
