—~I 
28 SUPPLEMENT. 
dense patch at the base, and various scattered spots, densely clothed with narrow white scales, the femora 
with two white rings, the anterior pair with indications of a fulvous line at the base, the rest of the 
vestiture sparse and fine, the scutellum almost bare. Head densely punctate, the eyes narrowly separated ; 
rostrum stout, arcuate, reaching the posterior margin of the intermediate coxe, rugulose and tricarinate 
at the base, and almost smooth thence to the apex, the antenne inserted at about the middle. Prothorax 
narrow, transverse, abruptly narrowed and constricted in front; densely, rugosely punctate, finely carinate 
anteriorly. Elytra triangular, nearly twice as wide as the prothorax, broadly flattened on the disc 
anteriorly ; punctate-striate, the interstices 3, 5, 7, and 9 narrowly costate, the ridge on 3 twice 
interrupted, that on 5 abbreviated anteriorly. Mesosternum flattened between the coxe. Femora 
clavate, sharply unidentate. Tarsal claws with a short tooth. 
Length 53-54, breadth 3 millim. ( 9.) 
fab. Costa Rica, San Carlos, 200 metres (Biolley). 
Three specimens. A close ally of the Mexican C. oculatus, but differing from it in 
having the rostrum longer, and tricarinate at the base, and the elytra broader and very 
densely clothed with white scales anteriorly. The ridge on the fifth elytral interstice 
is abbreviated in front, as in C. oculatus. 
Conotrachelus deplanatus (p. 381). 
To the localities given, add :—Costa Rica, Pozo Azul (Underwood). 
Three specimens. 
Conotrachelus rubicundulus (p. 418). 
To the localities given, add :—Nicaragua, San Marcos (Baker); Costa Rica, Surubres, 
near San Mateo, Pacific slope (Biolley). 
Conotrachelus carinifrons (p. 441). 
To the localities given, add :—Cosra Rica, San Carlos, 200 metres (Biolley). 
Four specimens, larger than those described from Guatemala, and with the oblique 
lines on the prothorax and the spot on the shoulders of the elytra rosy-red. 
ZENESIAS (p. 452). 
Ainesias tuberculirostris (p. 452). 
The description of this species was based upon males. In the female the rostrum is 
shining, and sparsely, minutely punctate from about the middle to the tip, and the 
tubercle at its apex beneath is wanting. 
2 (a). Ainesias sulcifrons, sp.n. (‘lab. XXXV. figg. 30, 30a, 3.) 
Subovate, shining, rufo-piceous, the antenne and tarsi ferruginous; variegated above with a rather dense 
clothing of small fulvous, cinereous, and dark brown scales, the cinereous scales condensed into two small 
spots on the disc of the prothorax and another at each hind angle, and a small patch at the sides of the 
elytra beyond the middle, the elytra also with a rather large blackish patch on the disc near the suture 
about midway between the base and apex ; the vestiture of the under surface sparse, cinereous. Head 
densely punctate, hollowed between the eyes, which are large, prominent, and well-separated ; rostrum 
