58 _ HETEROMERA. 
** Elytra with an opaque lateral patch on each side about the middle. 
6. Uroplatopsis simulans. (Tab. III. fig. 13, ¢.) 
Elongate, narrow, subparallel, thickly clothed with erect hairs, the head and prothorax shining, the former 
piceous, obscurely reddish between the eyes and in front, the latter testaceous, with a broad longitudinal 
piceous stripe on the middle of the disc extending from the base to the apex; the elytra subopaque, 
flavous, with a perfectly opaque fulvous lateral patch (small in the female, large and oblong in the male) 
about the middle, the suture, from the base to about the middle, rather broadly (but becoming more 
narrowly so posteriorly), and about the apical fifth, fusco-piceous. Head with exceedingly coarse confluent 
setiferous impressions between and behind the eyes, coarsely punctured in front, the eyes convex and 
moderately large; antenne black, joints 3-10 very broadly flattened and each angularly dilated towards 
the apex, 6-10 very sharply so, 3 the length of but much narrower than 4, 11 nearly as long as 7-10 in both 
sexes ; prothorax longer than broad, a little narrowed in front, and feebly constricted behind, the sides 
completely immarginate, the hind angles very prominent, the disc deeply canaliculate in the centre ante- 
teriorly and with a very deep <-shaped impression on each side about the middle, the basal margin much 
raised and preceded by a deep groove extending completely across, the sides and base rather coarsely and 
irregularly punctured, the disc smooth; elytra very long, subparallel nearly to the apex, the disc flattened, 
the sides towards the base almost vertical from the sixth row of impressions, the surface with regular 
rows of deep foveate, very closely placed impressions which extend to the apex, the interstices quite 
narrow and convex, each with a row of closely placed very fine setiferous punctures extending from the 
base to the apex, the fifth and seventh towards the base and the ninth towards the apex broader and 
costate, the apices obtuse ; beneath entirely piceous ; legs rather long, piceous-brown, the femora towards 
the base and the coxe more or less ferruginous, the femora and tibie sparsely and rather deeply (the 
anterior tibie thickly) punctured and somewhat thickly clothed on all sides with long hairs. 
¢. Anterior tibie triangularly widened on the inner side about the middle; intermediate tibia bent inwards 
towards the apex and a little thickened there, the basal portion flattened and opaque within ; intermediate 
and’ posterior femora deeply grooved along their inner side. 
Length 63 millim. ; breadth 1} millim. (¢ @.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
Two examples. This and the following species differ from the allied Central- 
American forms, U. excavata excepted, in the very peculiar sculpture of the thorax. 
7. Uroplatopsis dilaticornis. 
Closely resembling U. simulans :—The head similarly punctured between and behind the eyes, but with the 
vertex convexly raised and smooth in the middle; the prothorax with the longitudinal stripe on the 
middle of the disc narrowing and almost obliterated in front, the sides coarsely and rather closely punc- 
tured ; the elytra with a small perfectly opaque fulvous lateral patch about the centre, the suture broadly 
fusco-piceous, the fusco-piceous colour rapidly extending outwards from about the middle and towards 
the apex reaching the lateral margin; the rest as in U. simulans. 
Length 63 millim.; breadth 1} millim. (@.) 
Hab. Panama, Bugaba (Champion). 
One female example. This insect, at first sight, would appear to be only a colour- 
variety of U. simulans; but the sculpture of the head is so different that it cannot be 
treated as such. The apical joint of the antenne is unfortunately broken off. 
