CANTHODERUS.—APOTHINUS. 35 
I accept on Reitter’s authority these two names as representing one genus. Reitter 
has not, however, informed us that the species of Schaufuss is the same as that of 
Motschulsky, and as the localities whence they were respectively obtained are so distant, 
the two insects are possibly distinct. Motschulsky’s figure is very defective, and there 
is no specific description, so that his species can only be identified by comparison with 
the type. 
1. Canthoderus villosus. 
Canthoderus villosus, Motsch. Etudes ent. 1855, p. 15. tab. f. 67. 
Hab. Panama, Obispo 1. 
2. Canthoderus ursinus. 
Stratus ursinus, Schauf. Nunq. Otios. 11. p. 246°. 
Hab. Mexico, “ Yucatan au Teapa ”}. 
APOTHINUS. 
Caput parvum, anterius utrinque maxime elevatum, elevationibus in medio conjunctis. Antenne sat approxi- 
mate, undecim-articulate ; clava elongata, bi-articulata. Palpi maxillares articulo ultimo ovali, gracili. 
Prothorax inzqualis, posterius angustatus. Abdomen segmentibus basalibus sequalibus. 
This genus is proposed for an insect of Huplectus-like appearance, but with a 
different form of head and antenne, these latter being less widely separated. The 
head is narrow in front; and has on each side of the front margin a distinct elevation 
which meets its fellow of the opposite side in the middle, so as to form a single 
prominence, the surface behind this appearing greatly depressed. The antenne have a 
stout basal joint; they become gradually broader from the fifth joint to the ninth, 
these joints being transverse; the tenth joint is quadrate, the terminal joint elongate. 
The eyes are small. The thorax is much contracted behind; and has a deep irregular 
transverse depression in front of the base, as well as a longitudinal impression on each 
side, and another impression near the front. ‘The elytra possess a sutural stria, a very 
abbreviate dorsal stria, and a well-marked stria within the epipleural margin. The 
hind coxe are contiguous. The tarsi are quite short, and possess a single claw. 
1. Apothinus impressifrons. 
Rufo-obscurus, elytris castaneis ; capite anterius profundissime depresso; prothorace punctulato. 
Long. 13 millim. 
Hab. Guatemata, Cerro Zunil 4000 to 5000 feet (Champion). 
Antenne with the second joint much longer than the third, the latter very small. 
Head with a fovea on the middle of the vertex, the fovea connecting in front with the 
very deep frontal impression. Thorax complexly and irregularly impressed at the base ; 
with a short longitudinal impression on each side, and another depression on the disc 
in front of the middle. Elytra with strong humeral elevations; margined at the base, 
F* 2 
