OXYCNEMUS.—PYCNOCNEMUS. 363 
The locality for Reitter’s type of the species is not known}. Our figure is taken 
from a male found at San Gerénimo. 
2. Oxycnemus fulvus. 
Oxycnemus fulvus, Ey. in Germar’s Zeitschr. iv. p. 352'. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).—SoutH Amzrica, Brazil ! 
(coll. Sharp). 
Our specimens of this species are only three in number, and are distinguished from 
O. rostrosus solely by the mandibles of the male being simple; these three examples 
are only equal in size to the smallest specimens of O. rostrosus, but Brazilian examples 
are equal in size to the largest exponents of O. rostrosus. The male may be distin- 
guished from the female by the existence of a long pencil of fine hairs on the middle 
of the front edge of the prosternum. 
PYCNOCNEMUS, gen. nov. 
Corpus breve, haud pubescens. Labrum breve, bilobum. Tarsi anteriores et intermedii dilatati, posteriores 
simplices. Coxe intermedie et posteriores minus late distantes. 
l establish this genus for an insect, of which we have only received one example, having 
so completely the appearance of Oxycnemus that I at first referred it to that genus; it 
differs therefrom, however, by important characters. The labrum is quite small, and 
the mandibles have not the peculiar formation that is seen in either the male or the 
female of Oxycnemus, the terminal portion being slender, and the inner edge possessing 
one small tooth some distance before the extremity. The head beneath is formed as 
in Oxycnemus, the deep antennary grooves being subparallel and at their termination 
curved outwards behind the large ocular lobe. The palpi are simple and short. The 
pro-, meso-, and meta-sterna seem to be formed quite as in Orycnemus. ‘The front and 
middle legs have their tibie thick and their tarsi rather strongly dilated ; the hind legs 
are more slender, and their tarsi are simple ; the outer apices of the tibize are destitute 
of the long tooth or spine that exists in Oxycnemus. 
1. Pycnocnemus anisotomoides, sp. n. (Tab. XI. fig. 23.) 
Brevis, convexus, ferrugineus, subnitidus ; elytris subtiliter seriatim punctatis ; tibiis intermediis et posteriori- 
bus ad apicem externe haud dentato-productis. 
Long. 4 millim. 
Hab. Panama, Bugaba (Champion). 
Antenne with dark fuscous club, the two joints preceding this transverse. Head 
rather closely and finely punctured. Thorax very short, its punctuation scarcely 
different from that of the head, but a little more fine and less close. Scutellum finely 
and distantly punctate. Elytra rather dull, with fine series of punctures and a very 
feeble interstitial punctuation. One specimen, probably a male. 
3 A* 2 
