400 RHYNCHOPHORA. 
middle, the dorsal interstices wider ; the metasternum and abdomen with a broad space down the middle 
closely, finely punctate and clothed with long, fine hairs, the metasternum and first segment broadly and 
deeply excavate, the fifth foveate. 
Length 43, breadth 23 millim. 
Hab. Mexico, Juquila in Oaxaca (Sallé). 
One male. 
ANISORRHAMPHUS, gen. nov. 
Rostrum stout, arcuate, moderately long, separated from the head by a transverse groove, and also abruptly 
constricted near the base (the constriction formed by a deep transverse groove and a subtriangular exca- 
vation on each side), the scrobes deep, inferiorly placed, confluent behind; antenne inserted beyond the 
middle of the rostrum, the club large and ovate; eyes large; mandibles short, notched within, slightly 
decussate; prothorax transverse, bisinuate at the base, the median lobe truncate; scutellum free, 
triangular, densely squamose ; elytra rounded-triangular, separately rounded at the apex, sharply striate, 
the lower margin strongly sinuate; pygidium large, fully exposed, declivous; prosternum unimpressed 
behind the transverse suture ; anterior coxe separated by about half their own width, the basal process 
emarginate and not covering the mesosternum; metathoracic episterna broad; ventral segments 2-5 
nearly equal in length; femora unarmed, clavate; tarsal claws long, divergent; body oblong-rhomboidal, 
polished and in great part glabrous above, the scutellum and under surface squamose. 
Type, A. squamiventris. 
This genus may be at once recognized by the peculiar fractured appearance of the 
rostrum (fig. 5a), due to the deep transverse sulcus on each side near the base, the 
subtriangular excavation behind this looking as if it was intended to receive the basal 
joint of the funiculus. A. sguamiventris has the general facies of Loboderes flavicornis, 
and it inhabits the same districts in Central America. 
1. Anisorrhamphus squamiventris, sp.n. (Tab. XX. figg. 5, 5a, ¢.) 
Black, shining, the tip of the rostrum, the antenne in part or entirely, and the tibiz and tarsi, ferruginous or 
obscure ferruginous; the scutellum and under surface densely clothed with rather coarse whitish or pale 
ochreous scales. Head closely punctate; rostrum about as long as the head and prothorax, very stout, 
closely punctate, and setose beneath in the g, more slender and bare in the 9, the antenne inserted 
towards the tip in the ¢ and at about the apical third inthe 9. Prothorax gradually narrowing from 
the base, feebly constricted in front; closely, somewhat coarsely punctate, and with indications of a 
smooth median line, Elytra rather short, rapidly narrowing from the rounded humeri, depressed along 
the suture to the apex; sharply pnnctate-striate, the interstices broad, flat, and very sparsely, finely 
punctate. Pygidium densely punctate, somewhat convex. Beneath densely punctate, the first ventral 
segment unimpressed in the ¢. 
Length 23-41, breadth 17-2 millim. (¢ @.) 
Hab. Mexico, Vera Cruz (Sallé); British Honpuras (Blancaneaur) ; GuATEMALA, 
Cahabon, Chiacam, and Panzos in Alta Vera Paz (Champion), Coban (Conradt) ; 
PanaMA, Caldera in Chiriqui (Champion). 
Found in numbers at Cahabon in February, 1880. The specimens before me vary 
greatly in size and also in the intensity of the puncturing of the prothorax. 
