ERODISCUS. 277 
Four specimens. Very like E. bituberculatus, but separable from it by the simple 
tarsal claws. The male from Bugaba lacks the transverse depression at the apex of 
the first ventral segment. The rostrum is nearly as long as in &. longirostris, Faust. 
6. Erodiscus angustatus, sp. n. 
Elongate, narrow, shining, rufo-castaneous; the elytral interstices 2 and 4 each with a scattered series of 
long, erect, whitish, bristly hairs. Head smooth; eyes narrowly separated; rostrum feebly curved, 
slender throughout, of the same length as the elytra, finely punctured in its basal half and almost smooth 
thence to the apex, the antennee inserted at the middle, joint 2 of the funiculus considerably longer 
than 3. Prothorax much longer than broad, very convex, rounded at the sides, feebly constricted in 
front and strongly so behind, the short basal portion subcylindrical ; sparsely punctate at the base and 
apex and on the lower part of the flanks, for the rest smooth. Elytra moderately long, slightly wider 
than the prothorax, subparallel in their basal third, and abruptly constricted in front, the humeri some- 
what swollen; finely seriate-punctate, the punctuation becoming a little coarser near the suture, the 
interstitial impressions minute. Meso- and metasternum and the abdomen with a few coarse scattered 
punctures at the sides. Legs rather slender; anterior femora distinctly, and the two other pairs 
obsoletely, dentate ; tibiae simply sinuate ; tarsal claws simple. 
Length 34, of the rostrum 23, breadth 1 millim. (@.) 
Hab. Guatemaua, Cahabon in Vera Paz (Champion). 
One specimen. Smaller and narrower than EF. lwvigatus, with a relatively shorter 
and more slender rostrum, the prothorax somewhat globose anteriorly, the legs not 
so stout, and the general coloration castaneous. E. castaneus, Faust, from Venezuela, 
and other South-American forms are similarly coloured. 
Group HOPLORRHININA. 
The single Tropical-American genus included in this group was referred doubtfully 
by Chevrolat to the “ Antliarrhinides” of Lacordaire, the two genera of which are 
African. It belongs, however, to the section ‘“Synmérides,” the anterior cox being 
contiguous, a character separating Hoplorrhinus from Nanus, Schonh., of the “ 'Trype- 
tides” of Lacordaire, the species of which have a somewhat similar facies and are also 
Tropical-American *. The rostrum is long and slender, differently sculptured in the two 
sexes, and asperate above in some of the southern forms. The antenne are elongate, 
with a long basal joint to the funiculus, and the first joint of the club as long as the 
others united. The prothorax is as long as or longer than broad, rounded at the sides, 
without ocular lobes, and much developed beneath in front of the anterior coxe. ‘The 
femora are pedunculate, strongly clavate, and toothed. The tibiz are slender and 
almost straight, without claw at the apex. The tarsi are long and slender, with the 
third joint strongly bilobed, and the claws long, divergent, and at most feebly angulate 
towards the base (Tab. XIV. fig. 154). The species are narrow, elongate, and somewhat 
depressed. H. crispus is perhaps not really congeneric with H. mexicanus ; it approaches 
the genus Grasidius, which is here placed under the Erirrhina. 
* The monotypic South-American genus Spheracus is compared by Faust with Hoplorrhinus ; but it has 
the anterior coxe distant, and belongs to the group “ Cholina.” 
