642 RHYNCHOPHORA. 
slightly raised. Beneath densely, finely punctate. Mesosternum broad, prominent, feebly emarginate. 
Femora feebly unidentate. Tibiz almost straight on their outer edge. 
Length 3,,-4, breadth 14-1, millim. (¢ 9.) 
Hab. Mexico, Juquila in Oaxaca (Sailé); British Honpuras, Rio Hondo 
(Blancaneaur) ; Panama, Volcan de Chiriqui (Champion). 
Ten specimens. Smaller and less elongate than Gasterocercus plumipes, Boh., the 
brown patch at the base of the prothorax more extended, the legs not so stout, the 
anterior tibie and tarsi of the male not ciliate. The white scales on the elytra form 
a more or less distinct, common, X-shaped patch. The three examples from Chiriqui 
may belong to a different species, as they have the elytral seta about equally distributed 
over the whole of the interstices, and the rostrum of the female is much smoother than 
in the specimen of the same sex from Mexico. 
16. Cryptorrhynchus placatus, sp.n. (Tab. XXXI. figg. 22, 22 a, 3.) 
Oblong-ovate, opaque, black, the antennew and the tips of the tarsi ferruginous; densely clothed with rather 
coarse, overlapping, brownish or fulvo-cinereous scales, the prothorax with a curved streak on each side of 
the disc behind (often united into one large patch), and the elytra with a broad space along the suture 
at the base, partially denuded or bare, the third elytral interstice with an oval patch below the base, and 
usually an irregular mark at the middle and another towards the apex, velvety-black, the upper surface 
also somewhat thickly set with long, erect, blunt sete ; the vestiture of the under surface very sparse, 
that of the legs close, the latter fusco-annulate and setose. Head rugulosely punctate, the eyes rather 
small, distant ; rostrum short, broad, almost straight, rugosely punctate in the ¢, and more sparsely 
punctate in the 9, the antenne inserted at the middle, joint 2 of the funiculus shorter than 1, 3-7 trans- 
verse, the club ovate. Prothorax broader than long, constricted and abruptly narrowed in front; rather 
sparsely punctate, the interspaces alutaceous. Scutellum rounded. Elytra a little wider than the prothorax, 
subparallel in their basal half; seriate-punctate, the interstices alutaceous, feebly convex, flat near the 
suture, 3 swollen below the base. Beneath alutaceous, sparsely, shallowly punctate. Mesosternum 
prominent, feebly emarginate. Legs rather short ; femora sharply unidentate. 
Length 37-43, breadth 13-2 millim. (¢ 9 .) 
Hab. Panama, Volcan de Chiriqui (Champion). 
_ Twelve specimens. The short, broad, almost straight rostrum, which is rugose to 
the tip in the male, the black prominence at the base of the third elytral interstice, 
&c., distinguish C. placatus. The elytral interstices are flatter, the sete finer, and the 
tibia more rounded externally, than in C. spiculosus. The terminal (hidden) dorsal 
segment of the female is tridentate. 
17. Cryptorrhynchus curtirostris, sp. n. (Tab. XXXI. fige. 23, 23a.) 
Oblong-ovate, shining, nigro-piceous, the elytra often in great part rufo-piceous, the antenne and the tips of 
the tarsi ferruginous; densely clothed with pale brown scales, and sometimes more or less mottled or 
lineate with whitish, the prothorax with two curved lines on the disc and two streaks at the apex, and 
the elytra with three widely separated spots on the third interstice (the first the most conspicuous), 
and sometimes a long streak on the ninth before the middle, black or blackish; the upper surface also 
set with long, erect, blunt, pallid and black sete, which are clustered into a small fascicle on the third 
interstice below the base ; the legs fusco-annulate and strongly setose. Head convex, densely punctulate, 
the eyes rather small, widely separated ; rostrum very short and stout, widened towards the base and 
