126 RHYNCHOPHORA. 
intermixed tawny and whitish scales. Head densely, finely punctate ; rostrum very elongate, nearly 
equalling the elytra in length, finely punctured at the sides towards the base, for the rest smooth and 
shining, the scrobes deep and reaching the base beneath and there separated by the very narrow median 
ridge ; antenne elongate, rather slender, inserted far behind the middle of the rostrum, joint 1 of the 
funiculus elongate, twice the length of 2, the club about as long as joints 4—7 united. Prothorax trans- 
verse, moderately rounded at the sides, narrowed and constricted in front and a little narrowed behind, 
closely, very finely punctate and with traces of a smooth raised median line. Elytra about one-half 
wider than, and three times the length of, the prothorax, subparallel towards the base, which is 
subtruncate, the humeri rounded, the apices slightly dehiscent ; punctate-striate, the interstices feebly 
convex and minutely punctate. Beneath closely, minutely punctate. Tibiw unguiculate. 
Length 7, breadth 3 millim. ( 9.) 
Haé. Mexico, Amula in Guerrero (H. HH. Smith). 
One specimen, in perfectly fresh condition. 
CHELOTONYX. 
Chelotonyx, Waterhouse, Trans. Ent. Soc. Lond. (2) ii. p. 189 (1853) ; Lacordaire, Gen. Col. vi. 
p. 990. 
In this genus, the type of which was from the Amazons, tlie tarsal claws have a long 
tooth (as in the typical Anthonomi), the anterior femora and tibie are formed as in 
Prionomerus, and the head, rostrum, and prothorax much as in Ceratopus, with which 
Lacordaire associates it, mainly on account of the sinuous anterior margin of the 
prothorax, the latter having feeble ocular lobes. A single species of Chelotonyx from 
Mexico is contained in our collection. 
1. Chelotonyx fasciculatus, sp.n. (Tab. IX. figg. 1, 1a.) 
Oblong-ovate, coarse, shining, nigro-piceous, with a faint brassy lustre, the antenne and tarsi obscure ferru- 
ginous ; somewhat sparsely clothed with long, decumbent, ochreous pubescence, which is here and there 
clustered into fascicles on the elytra, the vestiture of the under surface whitish and scattered. Head 
sparsely punctured, foveate between the eyes, which are transverse, depressed, and rather narrowly 
separated ; rostrum stout, curved, about as long as the head and prothorax, narrowing a little at the apex, 
closely, irregularly seriate-punctate, the antenne inserted at one-third from the tip. Prothorax trans- 
verse, rounded at the sides, much narrowed and constricted in front, closely, irregularly punctate. Elytra 
moderately long, a little wider than the prothorax, subparallel at the base, the humeri obtuse; very 
deeply punctate-striate, the interstices strongly convex and rugulosely punctate. Legs stout; anterior 
coxee somewhat widely separated ; anterior femora strongly clavate, the very large triangular tooth finely 
serrate externally ; anterior and intermediate tibie with a strong claw, the anterior pair simply curved, 
not sinuate within, ciliate on their inner edge. 
Length 4, breadth 2 millim. 
Hab. Mexico, 'Teapa in Tabasco (H. H. Smith). 
Two specimens, their sex not ascertained. Much smaller than C. bates’, Wat., the 
prothorax rounded at the sides, the elytra narrower, with the interstices convex, the 
anterior tibiz not sinuate within, the femoral tooth more finely serrate, the rostrum 
not widened at the apex. | 
