14 RHYNCHOPHORA. 
than others of the genus, the thorax is very distinctly punctured, and there are also 
quite distinct punctures on the metasternum and on the elongate ventral segments. 
The antenne are thick, the club moderately long. The groove of the rostrum is 
connected with the vertex by a moderately broad channel; the sides of the groove are 
interrupted in front of the insertion of the antenne. Thorax narrow, the surface 
irregular, deeply transversely depressed near the front. Elytra with the grooves deep ; 
the interstices narrow, rather strongly elevated, the fourth separated by a deep groove 
from the fifth, and distinct, except at the base; the large punctures cause the intervals 
to be crenate, and the punctures themselves are thus rendered more indistinct. Front 
tibie broad, but their notch not deep. Under surface of the head highly polished, 
and without any trace of channel along the middle; the serial median setz obsolete, but 
not entirely absent; the pterygia hirsute, and thus forming a strong contrast to the 
polished part behind them. Punctures along the side of the metasternum large. 
Three specimens. | 
12. Stereodermus dentipes, sp. n. 
Sat gracilis, nitidus, rufo-piceus, antennis piceis; femoribus anterioribus longe, intermediis et posterioribus 
breviter dentatis ; prothorace evidenter punctulato; elytris intervallis carinato-subelevatis, punctatura 
discreta; capite subtus nitido, spatio mediano longitudinali opaco. 
Long. 54 millim. 
Hab. Panama, Bugaba (Champion). 
This species, though similar in appearance to S. longiceps and S. pygmeus, is readily 
distinguished by the dentate femora. The rostrum is broad, punctulate; the eyes 
placed rather far from the back of the head. The thorax is a little rounded at the 
sides; the punctures on it are quite distinct. The elytra are quite shining; the 
fourth and fifth interstices are each distinct, and are separated by a very distinct row of 
punctures ; the external series of punctures are large and distinct, but the intervals are 
not carinate. Tibial notch moderately deep, but not so large as in S. pygmaeus. 
Only one specimen has been procured of this very distinct species. 
13. Stereodermus barbirostris, sp. n. 
Gracilior, testaceo-brunneus, nitidus; rostro ad antennarum insertionem utrinque dense setoso; elytris 
profunde striatis, externe nitidis, obsolete punctatis; capite subtus nitido; tibiarum incisura parum 
profunda, processu superiore fere nullo. 
Long. 5-6 millim. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
At first sight, quite similar to the moderately large specimens of S. pygmaeus. 
Antenne large and stout. Rostrum in front of the antenne very polished, the channel 
scarcely extending further forwards than the front of the pterygia; the sides from the 
pterygia to near the tip set with erect pallid scales; the channel interrupted between 
