106 RHYNCHOPHORA. 
deep, and the coste on the wing-cases are distinctly elevated even on the part where 
they all join. 
The males differ from the females by their more slender form. 
3. Epicerus calvus, sp,n. (Tab. IV. fig. 19, ¢ .) 
Minus elongatus, niger, fere nudus, profunde sculpturatus ; elytris interstitiis 3°, 5°, 7° argute elevatis, inter- 
vallis profunde sculpturatis ; rostro medio sulcato. 
Long. 17 millim. 
Hab. Mexico, Orizaba (Sal/lé). 
This appears to be more completely free from squamosity than any of the other 
species of the genus, and is of a jet-black colour. The rostrum is broad and short, 
with a fine, very definite channel on the middle. The rugose sculpture on the thorax 
is remarkably deep, and there is a median, deep, rugose groove, a little interrupted in 
the middle. The elevated coste of the elytra are very definite, and the two series of 
large punctures in the groove between each pair of coste are distinct; indeed the 
longitudinal interval separating them is more definite than usual. One pair. 
4, Epicerus sulcirostris, sp. n. 
Brevis, niger, subsquamosus; elytris interstitiis 3°, 5°, 7° sat elevatis, intervallis grosse punctatis; rostro 
medio late sulcato. 
Long. 13 millim. 
Hab. Mexico, Esperanza (Hoge). 
This is one of the species with black, apparently denuded surface, but which is 
nevertheless nearly covered with scales closely adpressed to the surface, and not at all 
overlapping; although greatly resembling JZ. vilis, it may be recognized by the deep, 
remarkably broad, depression that extends from between the eyes to the apex of the 
rostrum. The thorax is short and broad, with an obsolete sulcus along the middle 
and vague rugosities on the lateral portions. The coste of the elytra are well-marked, 
but not strongly elevated, and are nearly as definite behind as they are in front; the 
broad grooves between them are almost entirely occupied by two series of large vague 
punctures or pits. 
Two specimens only have been received. They appear to represent the sexes, though 
there is but little difference between them ; if of one sex, both are, no doubt, females. 
5. Epicerus niger, sp. n. 
Elongatus, niger, obsolete squamosus ; rostro medio canaliculato ; elytris interstitiis 3°, 5°, 7° argutis, sat latis, 
parum alte elevatis, punctis inter costas confertis. 
Long. 13 millim. 
Hab. Mexico, Orizaba (Sallé). 
This is another of the species which to the unaided eye appears black, and destitute 
