524 RHYNCHOPHORA. 
anterior pair long; tibiee with a prominent outer carina, which is more or less hollowed before the tip and 
terminates in a sharp tooth. 
Length 63-81, breadth 3-33 millim. (¢ 2.) 
Hab. Panama, Volcan de Chiriqui (Champion). 
Four specimens. Very like Z. affaber, but wanting the frontal sulci and with the 
antennal club longer, and the tibie more sharply carinate on their outer edge, the 
carina bi- or unidentate at the apex. he shorter legs, the broader, carinate tibie, 
the less approximate eyes, &c., separate it from Celosternus consputus, Boh. 
3. Zascelis affaber. (Tab. XXVI. figg. 5, 5 a,b; 5c, hind leg.) 
Cryptorhynchus affaber, Boh. in Schonh. Gen. Cure. viii. 1, p. 3167. 
Hab. Mexico (ex coll. Flohr), Vera Cruz} (Mus. Holm.!; Sallé),San Andres Tuxtla, 
Yolos (Sallé), Rio Papagaio (H. H. Smith), Jalapa, Cuernavaca, Tapachula, Teapa, 
Frontera (Hoge); British Honpuras, Rio Hondo (Blancaneaux); GtaTEMALA, Panzos, 
Teleman, Cahabon, Cubilguitz, Chiacam, San Juan, and San Gerdénimo in Vera Paz, 
Cerro Zunil, Volcan de Atitlan, Paso Antonio (Champion); Panama, Bugaba, Volcan 
de Chiriqui (Champion). 
The large number of specimens (upwards of 100) referred to this species, the type 
of which cannot now be found in the Stockholm Museum, agree in having a smooth, 
deep, arcuate groove on each side of the front of the head, the rostrum thus appearing 
to extend further upwards than usual. The sculpture of the prothorax and elytra is 
very variable, as in Memactes, it being particularly coarse in the examples from British 
Honduras, Vera Paz, and Panama. ‘The prothorax is parallel at the sides behind, and 
usually has a more or less distinct median carina. ‘The elytra are flattened on the disc 
anteriorly, and have rows of deep, subquadrate, approximate punctures, separated by 
narrow, raised, subcostate interstices, which are in a few specimens punctate or rugose. 
The vestiture is whitish or ochreous, sparse, sometimes condensed into three faint 
lines on the prothorax, and fasciculate on the elytra. The tooth on the anterior 
femora is rather long. The length varies from 64-84 millim., and the breadth from 
22-34 millim. 
In a single specimen ( 2 ) from the Volcan de Chiriqui the frontal sulci, instead of 
extending upwards, are continued outwards along the upper edge of the eyes. 
4. Gascelis brevicollis, sp. n. (Tab. XXVI. fig. 6, front leg.) 
Oblong-ovate, shining, black, the antenne obscure ferruginous ; very sparsely clothed with narrow, piliform, 
decumbent, ochreous scales, which on the elytra are here and there subfasciculate. Head coarsely punc- 
tate, with a deep arcuate groove on each side between the eyes, the latter depressed ; rostrum strongly 
curved, in repose reaching almost to the anterior limit of the metasternum, punctato-sulcate at the base, 
and for the rest sparsely, very finely punctate. Prothorax much broader than long, rounded at the sides, 
narrowed from near the base, the latter bisinuate; very coarsely, confluently punctate. Scutellum 
oblong, smooth. Elytra considerably wider than the prothorax, narrowing from a little below the base ; 
with rows of coarse, deep, oblong or oval, approximate punctures separated by narrow, slightly raised, 
