ELPINUS.— RHINOCHENUS. 537 
‘ 
prothorax and various scattered patches on the elytra, the elytra also set with a few short decumbent 
seta. Head densely punctate, sharply carinate between the eyes; rostrum rather slender, feebly curved, 
reaching to the anterior edge of, the metasternum, widened, depressed, and rugosely punctate at the base, 
for the rest almost smooth and shining, the anteunz inserted behind the middle, joint 2 of the funiculus 
elongate, as long as 1, the eluib ovate. Prothorax broader than long, rounded at the sides, much narrowed 
in front, bisinuate at the base; densely, finely punctate. Scutellum oval. Elytra elongate, very little 
wider than the prothorax, parallel in their basal third and gradually narrowing thence to the apex ; 
. seriate-punctate, the interstices 5 and 7 feebly, and 3 sharply, costate, the ridge on 3 abruptly 
terminating before the base. Beneath closely punctate. Legs moderately long; femora each with a 
narrow, acute tooth. 
Length 63, breadth 21 millim. (2.) 
Hab. Mexico, Cordova (Sai/é). 
One specimen. In general facies this insect resembles Atrichis occiduus, except 
that it is very much narrower. 
RHINOCHENUS. 
Rhinochenus, Lucas, in Casteln. Voyage, vii. p. 171 (1859) ; Chevrolat, Ann. Soc. Ent. Belg. xiv. 
p. 85 (1871). 
Chevrolat, in his Monograph of this genus, enumerates eighteen species as belonging 
to it (some of which are certainly nothing more than varieties), all from South America. 
In R. stigma and its allies * the rostrum is very stout, short, rugulosely punctate in 
the male, smoother in the female; the antennz are stout, and have a rather short, 
annulate, blunt club; the eyes in repose are completely hidden by the ocular lobes 
of the prothorax; the mesosternum is broad; the second ventral segment is a little 
shorter than the third and fourth united, and separated from the first by a sinuous 
suture; the legs are very stout and rather short, the femora feebly dentate. 2. stigma 
is recorded as having been found in British Guianaf in the fruit of the so-calied 
“locust-tree” (Hymenwa courbaril), which is widely distributed in Tropical America. 
- This species extends northwards to Nicaragua. 
1. Rhinochenus stigma. (Tab. XXVI. figg. 23, var.a; 24, 24a, var. e.) 
Curculio stigma, Linn. Mus. Lud. Ulr. p. 48'; Herbst, Kafer, vi. p. 284, t. 82. fig. 1”. 
Rhynchenus stigma, Fabr. Syst. Eleuth. 1. p. 463°; Oliv. Ent. v. no. 83, p. 197, t. 34. fig. 530°. 
Cryptorhynchus stigma, Gyll. in Schénh. Gen. Cure. iv. p. 63”. 
Rhinochenus stigma, Chevr. Ann. Soc. Ent. Belg. xiv. p. 89°. 
Curculio piger, Fabr. Ent. Syst., Suppl. p. 169°. 
Rhinochenus piger, Chevy. loc. cit. p. 90°. 
Rhynchenus nota, Ilig. Mag. v. p. 243 *, 
Rhinochenus stenaspis, Chevr. loc. cit. p. 90”. 
Hab. Nicaraaua, Chontales (Janson); Costa Rica, Savanilla de Pirris, Escazu 
* The type, 2. sticticus, Luc., is unknown to me. 
+ Cf. Proc. Ent. Soc. Lond. 1878, p. xlv. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 4, October 1905. 3 ZZ 
