CERATOPUS. 125 
brachium crassipes, from Rio Janeiro, except that it has a shorter prothorax and a 
more slender rostrum. | 
5. Ceratopus tessellatus, sp. n. (Tab. VIII. figg. 7, 7a.) 
Obovate, moderately shining, nigro-piceous, the scape and funiculus of the antenne obscurely rufescent ; 
somewhat thickly clothed with small, oblong, intermixed, flavo-cinereous, tawny, and fuscous scales, these 
arranged in a tessellate pattern on the alternate elytral interstices, the fifth with a pale spot at the apex. 
Head closely punctate, faintly foveate between the eyes ; rostrum about as long as the head and prothorax, 
closely punctate and faintly carinate, becoming much smoother beyond the middle; antenne inserted a 
little before the middle of the rostrum, joint 1 of the funiculus as long 2 and 3 united, the club the length 
of joints 3-7 together. Prothorax strongly transverse, the sides rounded anteriorly and rapidly converging 
in front; the surface closely, finely punctate, transversely depressed on each side of the disc and also in 
the middle at the base. Elytra subovate, rather convex, more than one-half wider than the prothorax, 
punctate-striate, the interstices more or less convex and closely, minutely punctate. ibis unguiculate. 
Length 43-53, breadth 22-24 millim. 
Hab. Panama, Volcan de Chiriqui 4000 feet (Champion). 
Three specimens, probably all females, two of which show the tessellate arrangement 
of the differently-coloured scales on the alternate elytral interstices. Less convex than 
C. longiclava, the prothorax more transverse, the antennal club of normal length, the 
elytra feebly emarginate at the sutural angle and with the markings very different, 
the legs not so stout, the rostrum more slender. 
6. Ceratopus longiclava, sp. n. (Tab. VIII. fige. 8, 8 a.) 
Obovate, robust, nigro-piceous, the scape and funiculus of the antenne rufescent; thickly clothed with rather 
coarse, oblong, tawny scales, the fifth elytral interstice with along black streak towards the apex followed 
by a small pale ochreous spot. Head densely, rugulosely punctate; rostrum about as long as the head 
and prothorax, densely, rugulosely punctate and feebly 5-carinate from the base to near the middle, and 
minutely punctate and shining thence to the apex; antennx with joint 1 of the funiculus obovate, as 
long as 2 and 3 united, 3-7 transverse, small, the club elongate, and fully as long as the entire funiculus. 
Prothorax broader than long, narrowed and constricted in front, the sides parallel behind, the surface 
densely, very finely punctate. Hlytra subovate, convex, about two-thirds wider than the prothorax, the 
apices angular and divergent; punctate-striate, the interstices convex and closely, minutely punctate. 
Legs stout; tibie unguiculate. 
Length 6, breadth 24 millim. 
Hab. Panama, Bugaba (Champion). 
One specimen, probably a female. Easily distinguishable by the elongate antennal 
club, this being as long as the whole of the funiculus, the angularly excised apex of 
the elytra, the fifth interstice of which has a long black streak followed by a pale 
ochreous spot, and the short, robust form. 
7. Ceratopus rufirostris, sp.n. (Tab. VIII. figg. 9, 9a, 2.) 
Oblong-ovate, piceous, the head, rostrum, antenna, and the legs in part, rufescent ; densely clothed with 
rather coarse oblong scales, which are tawny in colour on the upper surface, and whitish beneath, the 
elytra with intermixed whitish scales, which tend to form a common, interrupted, transverse basal and 
an angulated median fascia, the pronotum also with some pallid scales towards the sides, the legs with 
