CHAULIOPLEURUS. 271 
almost smooth, the tibia sparsely setose within, the anterior pair, and sometimes the others also, feebly 
denticulate. Wings fully developed. 
Length 83-13, breadth 3-44 millim. (¢ @.) 
Hab. Costa Rica, Irazu, Rio Sucio (Rogers), La Palma (Pittier, Biolley), Savanillas 
de Pirris (Underwood), Cariblanco, Carrillo (U.S. Nat. Ilus.). 
Sent us in abundance from La Palma and Irazu. Separable at once from its allies 
by the very shining, almost glabrous, greasy-looking, black body, and the inflated 
elytra, with the flanks conspicuously nodose below the base and the humeri prominent. 
The spiniform prominences at the apex vary in development, and are often considerably 
lengthened in the female. C. adipatus has quite the facies of an Otiorhynchus. 
2. Chauliopieurus rufovittatus, sp.n. (Tab. XII. figg. 18, 184, ¢.) 
Somewhat fusiform, flattened or concave above, shining, black, the femora (except at the apex), tibiew, and a 
broad submarginal stripe on each elytron, rufous; the upper surface (except the dise of the prothorax 
and the sutural region of the elytra) and the sides of the body beneath clothed when fresh with very 
minute, scattered, blue or cinereous scales, which are soon abraded. Head and rostrum finely punctate, 
the rostrum tricarinate, the inter-ocular space depressed and feebly foveate; eyes large, not prominent. 
Prothorax slightly broader than long, subcylindrical, obliquely narrowed anteriorly, broadly depressed or 
flattened down the middle and sometimes with a short median suleus behind, feebly bisinuate at the base ; 
with irregularly scattered, coarse, transversely confluent punctures intermixed with a fine interstitial 
punctuation, the flanks rugose. Scutellum small. Elytra oblong-ovalin ¢, broader in Q, transversely 
excavate at the base, somewhat tumid at the sides below the shoulders (appearing obliquely narrowed 
anteriorly), flattened along the suture, gradually sloping outwards, and abruptly declivous at the apex, 
tne humeri not prominent, the apices acuminate, feebly mucronate in ¢; finely seriate-punctate, the 
interstices broad, flat, finely granulate towards the sides. First ventral segment flattened or depressed 
down the middle in ¢. Legs rather slender, the femora and tibie almost smooth. Wings fully 
developed or rudimentary. 
Length 82-133, breadth 3-42 millim. (¢ 9.) 
Hab. Costa Rica (coll. Solari), La Palma 1600-1700 metres (Biolley), Azahar de 
Cartago (Underwood). 
Described from seven examples, two of which belong to Signor Solari. Easily 
recognizable by the somewhat concave upper surface of the body (as seen in profile), 
the rufo-vittate, sloping lateral portions of the elytra, and the non-prominent humeri. 
The wings are fully developed in one specimen, and rudimentary in another, of the 
two individuals ( @ ) softened for examination. 
3. Chauliopleurus quadrifoveatus, sp.n. (Tab. XII. figg. 19, 19a, 2.) 
Moderately elongate, oval, shining, black, the legs sometimes piceous; the prothoracic cavity, the lateral 
excavations of the elytra, and an oblong space on the flanks between the latter and the lower margin 
somewhat densely clothed with white, green, or blue scales ; the rest of the upper surface and the sides 
of the body beneath with scattered, whitish, green, or fuscous seales intermixed on the elytra with con- 
spicuous semiereci pallid sete; the legs and antenne with bristly hairs. Head and rostrum sparsely 
punctate, the rostrum widened outwards, a little longer than broad, carinate down the middle and with 
an oblique ridge on each side, the inter-ocular space depressed and feebly foveate; antennal scape 
reaching to the front of the prothorax; eyes large, depressed. Prothorax transverse, rounded at the 
