240 RHYNCHOPHORA. 
Three males and five females. Distinguished amongst its allies by the glabrous, 
deeply bifoveate prosternum, the flattened, uneven, sharply striate elytra, and the 
ochreous or white spot on the metathoracic episterna and the first ventral segment. 
4. Cylindrocerus subulatus, sp.n. (Tab. XIII. figg. 26, 26a, 2.) 
Very like C. glabripectus, but with the ochreous scales on the under surface condensed into a single dense 
elongate patch on the metathoracic episterna, and those at the base of the third elytral interstice into an 
oblong patch ; the rostrum more abruptly narrowed, and with the smooth apical portion comparatively 
slender, the basal portion coarsely punctate, the antenne inserted at a little behind the middle, the 
antennal club more elongate, nearly as long as the funiculus ; the ventral surface glabrous, and very 
sparsely, finely punctate throughout; the prosternum with two smaller fovee in front and slightly 
depressed in the middle before the coxe. 
Length 44, breadth 25 millim. (92.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen, evidently distinct from C. glabripectus. 
5. Cylindrocerus squamipectus, sp. n. 
Oblong-subrhomboidal, flattened above, shining, black; an oblong spot at the base of the third elytral 
interstice, a spot above each anterior coxa, the middle of the prosternum, an elongate patch on the 
metathoracic episterna, and a rounded spot at the sides of the first ventral segment, thickly clothed with 
yellowish-white scales, the rest of the under surface with a few minute whitish scales. Head minutely 
punctate ; rostrum much longer than the head and prothorax, stout and coarsely punctate in its basal 
half, the apical half smooth and more slender, the antennz inserted at (9) or a little beyond (¢ ) the 
middle, the antennal club stout, oblong-ovate, as long as joints 2-7 of the funiculus united. Prothorax 
conical, slightly broader than long, sparsely, minutely punctate. Elytra triangular, flattened, and with 
two shallow transverse depressions on the disc; sharply striate, the striz feebly punctate, the interstices 
flat. Beneath closely punctate, the propleura smoother. Prosternum with two deep more or less 
confluent foves in front and shallowly depressed down the middle to the anterior coxe. 
g. Prosternum in the fully-developed form armed with two conical tubercles, and with a deep excavation 
between them; first ventral segment very broadly excavate in the middle. 
Length 45-51, breadth 2,1,-25 millim. (¢ 2.) 
Hab. Mzxico, Omilteme in Guerrero 8000 feet (H. H. Smith), Cordova (Hoge). 
Seven specimens. Very like C. glabripectus, but with an interrupted transverse, 
curved space in front of the anterior coxee, an oblong patch on the metasternal side- 
pieces, and a spot at the sides of the first ventral segment, squamose; the under 
surface more closely punctate ; the ventral depression of the ¢ larger, the anterior 
tibixe not ciliate in this sex. Allied unnamed S.-American forms are contained in the 
British Museum collection. 
6. Cylindrocerus circumlineatus, sp.n. (Tab. XIII. figg. 27, 27a, ¢.) 
Subovate, flattened above, shining, black; an oblong spot at the base of the third elytral interstice, a complete 
or more or less interrupted stripe along the sides of the body beneath, the two stripes connected across 
the prosternum, and the sides of the metasternum, densely clothed with rather coarse white scales, the 
rest of the under surface and the legs with scattered, minute, narrow scales. Head minutely punctate ; 
rostrum long, moderately stout, becoming more slender towards the apex, finely punctate, the apical half 
