Capt. P. P. Kine’s South American Coleoptera. 189 
A single specimen, which appears to be immature, was found at Gorrite. 
It seems to be allied to Acinopus and Cratacanthus, Dej., but the acute tooth of 
the mentum distinguishes it from the former, and the habit does not assimi- 
late with the latter genus. 
9. Pristonycuus RUFITARSIS. Curt. 
Piceus ; antennis brunneis; illarum basibus, trophis, femorum basibus tarsis- 
que castaneis; capite thoraceque nigris ; elytris obscure violaceis. 
Length 7 lines; breadth 21. 
Piceous: antenne brown, 3 basal joints, trophi, coxæ, trochanters and tarsi 
castaneous: head and thorax bluish-black, the former with 2 foveæ in 
front, the latter with a deep channel down the middle, and a large fovea 
near each hinder angle: elytra dull violaceous, with fine striæ obscurely 
punctured, basal stria abbreviated, the costal deeply punctured, one or 
two punctures between the 3rd and 4th striz on the disc, 
A male from Conception. 
10. CALATHUS PENNSYLVANICUS. 
Oliv. vol. iii. Gen. 35. p. 72. no. 93. pl. S. f. 92. 
A female from Gorrite. 
N. G. Mzrivs. Curt. 
Caput suborbiculare : oculi prominentes. Thorax subquadrato-cordatus: scu- 
tellum elytra separans. Elytra elliptica, apice obsoletè emarginata. Tibia 
anteriores parüm profundè emarginatz: tarsi anteriores articulis 3bus 
basalibus in mare dilatatis, obovato-truncatis. Antenne graciles, caput 
thoracemque æquantes ; articulo basali reliquis crassiore, 2ndo haud brevi, 
3tio et sequentibus longis. Labrum subprofundé emarginatum: man- 
dibulæ breves, validae. Palpi articulo apicali penultimo breviore, elli ptico- 
truncato: mentum simplex, latè emarginatum. 
Labrum slightly transverse, strongly emarginate, with a few bristles. Man- 
dibles strong and curved. Maxillary palpi with the 3rd joint scarcely so 
long as the 2nd, 4th shorter, elliptic-truncate (165p): labial palpi with 
the 3rd joint shorter than the 2nd, and similar in size and form to the 
maxillary. Mentum with a broad notch, the centre slightly convex (17). 
VOL. XVIII. 2c 
