HYPORHAGUS.—ASPATHINES. AT5 
Six specimens from Guatemala and three from the State of Panama, all of which 
were captured on the lower part of the Pacific slope and at elevations of not more 
than 1000 feet. H. emarginatus closely resembles the species here identified as H. leve- 
punctatus, but has a very differently-formed mesosternum ; it is also smaller in size, and 
has the sides of the thorax (as well as the anterior portion) and the reflexed margins of 
the elytra red, and the three basal joints of the anterior tarsi dilated in the male. 
8. Hyporhagus obliteratus. (Tab. XXI. fig. 25.) 
Elliptical, short, very convex, black, shining, the head anteriorly and the anterior fourth of the prothorax 
rufescent, the legs and antenne fusco-ferruginous. Head finely and densely punctured ; prothorax short, 
transverse, the sides a little rounded and very rapidly converging from the base, the lateral margins mode- 
rately prominent and only feebly grooved within (more deeply so within the anterior angles), the surface 
very sparsely and finely punctured; elytra narrowly margined, very obsoletely striate, the striz with 
scattered punctures, the punctures on the disc coarse and irregular at the base and almost obliterated 
beyond, the interstices with exceedingly minute scattered punctures (only visible under a strong lens) : 
beneath brownish-piceous, exceedingly minutely and very sparsely punctured, the metasternum almost 
smooth ; mesosternum broadly and shallowly arcuate-emarginate in front; anterior tarsi with the three 
basal joints feebly dilated in the male. 
Length 34 millim.; breadth 23 millim. (d.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
Two male examples. ‘This distinct new species is shorter and more convex than any 
Hyporhagus yet described; the general outline is elliptical, and the elytra are compa- 
ratively very narrowly margined. In the elytral sculpture H. obliteratus agrees almost 
exactly with Thomson’s figure and description of H. cayennensis, from Para ; the latter, 
however, is of a more elongate shape, and has more broadly margined elytra, &c. 
ASPATHINES. 
Closely allied to Hyporhagus and differing as follows :—Antennez very short, the basal joint scarcely twice as 
long as the equally stout second, joints 6-9 very strongly transverse, 10 and 11 only broadly widened and 
forming a 2-jointed club; the grooves for the reception of the antennz very deep, parallel anteriorly, very 
sharply curved about the middle, and extending outwardly towards the anterior angles; elytra very finely 
and narrowly margined, the margins not extended and invisible from above. 
This genus contains a single species, which is widely distributed in Central America. 
The 2-jointed antennal club and peculiarly-formed antennal grooves—in Hyporhagus 
these grooves curve gradually towards the hind angles of the thorax, in Aspathines 
they are very sharply curved behind and extend upwards towards the anterior angles— 
distinguish the genus at once from Hyporhagus and Monomma. ‘The elytra are convex 
laterally and the margins are quite invisible from above. The anterior tarsi are very 
little stouter in the male than in the female. 
A. ovatus is smaller than any species of Monommide yet described. 
