108 RHYNCHOPHORA. 
This is more uniformly covered with pallid scales than the other species of the genus ; 
the scales are very minute and cover the internal two coste, but the outer of the three 
raised coste is nearly bare and dark in colour. The rostrum is rather short. The 
surface of the thorax is uneven, and has a feeble rugose depression along the middle, 
but this is not limited by any definite smooth space. ‘The first and second of the three 
coste on the elytra are vot much elevated, and the sculpture in the grooves between 
them is very shallow. The female is much broader than the male. Three specimens. 
E. coxalis, which in some respects is like this species, has a tubercle on the middle 
coxa, and the squamosity of the surface brownish in colour, not nearly white as in 
E. uniformis. 
9. Epicerus coxalis, sp.n. (Tab. IV. fig. 21.) 
Niger, pallide brunneo-squamosus ; rostro parce squamoso, medio minus profunde sulcato; elytris dense 
squamosis, interstitiis alternis elevatis haud altis ; coxis intermediis tuberculo minuto munitis. 
Long. 14-17 millim. 
Hab. Mexico, Amula 6000 feet, Omilteme 8000 feet, Chilpancingo 4600 feet, Xucu- 
manatlan 7000 feet, all in Guerrero (H. H. Smith). 
The small tubercle on the middle coxa is diagnostic of this species, as I have not 
been able to find it in any other. No other species before me of this group has the 
elytra so densely and uniformly clothed with scales. The rostrum is shining, black, 
covered with delicate and small, pallid, rather widely separated scales, with a rather 
feeble channel along the middle that scarcely reaches a fovea placed on the middle of 
the vertex ; the eye is surrounded by a black orbit, and outside this there is a deep 
impression extending all round the front part of the eye, and just before this, on each 
side of the front of the rostrum, there is a short curvate depression. The thorax is 
very irregularly sculptured ; there is a broad longitudinal depression along the middle, 
and outside this a still broader depression; the depressions are more or less rugose, 
and are densely covered with scales, which are of a larger size than those placed on the 
elevated parts. The elytra are elongate, the suture only slightly raised, the third, fifth, 
and seventh interstices more distinctly raised, the sculpture on the depressed spaces 
between them being very indistinct ; the coste are covered with scales, and those on 
the outer costa are usually smaller and more delicate than elsewhere; mixed with 
the scales there are excessively short sete. The legs bear a squamosity similar to that 
of the rostrum. 
Kighteen examples; the males are very much more slender in form than the females, 
and have a long acute mucro at the end of the posterior tibia in front; they also have 
the apical portion of the elytra different in shape from the female. 
