52 RHYNCHOPHORA. 
sulcate tibia. The antenne are inserted in both sexes near the apex of the rostrum. 
The humeri in many of the species are angular in front. The rostrum in the male has 
two prominences at the base beneath, these sometimes forming sharp teeth. The 
tibiee are deeply sulcate in many of the species, and shallowly so in others, the sulci, 
however, are occasionally absent; their apical armature is similar to that of the species 
here placed in Sect. II. of Hilipus. 
Scrobes (3) strongly sinuous beneath, very deep, extending so far forward as to 
receive the whole of the antennae. . . . . . . . Species 1. 
Scrobes (3) moderately sinuous or subparallel beneath, deep, a little less 
extended, not receiving the antennal club. 
Humeri truncate or obtuse in front; tibie with or without groove on their 
outeredge . .... . ee . oe ew we ee ee). «Species 2-8. 
Humeri more or less angular in front; tibize sulcate Loe ee . . « . Species 9-1-4, 
Scrobes (3) shallower and abbreviated beneath, receiving the basal joints only 
of the funiculus. 
Humeri obtuse in front; tibie sulcate. . . 2. 2. 2 2. we . . + Species 15. 
Humeri more or less angular in front; tibize sulcate or flattened on their outer 
edge. ce ee ke ee ee ee en en ng a Species 16-18. 
1. Hilipinus ingens, sp. n. (Tab. IV. figg. 12, ¢ ; 12a, profile of head 
and rostrum; 12, rostrum from beneath.) 
Elongate, broad, robust, black, variegated above with minute fulvous scales, with still smaller scales intermixed ; 
the under surface and legs also clothed with fulvous scales, those on the pleura and the sides of the 
venter coarser than the rest. Head densely, rugulosely punctured, not foveate between the eyes, which 
are somewhat widely separated; rostrum very stout, broad, feebly curved, a little longer than the 
prothorax, rugulosely punctured to the tip and indefinitely tricarinate, laterally sulcate, the scrobes in 
great part visible from above and forming deep sinuous furrows beneath for the reception of the funiculus 
and club ; joint 2 of the funiculus considerably longer than 1. Prothorax transverse, feebly bisinuate at 
the base and deeply emarginate at the apex, the sides almost straight behind and arcuate and converging 
anteriorly, strongly constricted in front; the surface densely, very minutely punctate and also very finely 
granulate, with an interrupted median carina. Elytra one-fifth wider than, and three and one-half times 
as long as, the prothorax, moderately convex to the middle and flattened on the disc thence to the apex, 
the sides subparallel to beyond the basal half, the apices a little produced at the sutural angle, the 
humeri rounded externally and truncate in front; shallowly and rather finely seriate-punctate, the 
interstices broad, densely rugulose, and minutely granulate. Venter closely, finely punctate, the first 
and second segments very broadly depressed down the middle. Tibiz shallowly sulcate. 
Length 214, breadth 9 millim. (<¢.) 
Hab. Guatemata, Chacoj in the Polochic Valley (Champion). 
One specimen. This species, which is more elongate in form than the allied 
H. ascius and H. biguttatus, is remarkable from the fact of having the rostrum 
sufficiently sulcate beneath to receive the entire antenna in repose, the sulci curving 
outwards towards the apex of the rostrum and widely separated at its base. H. corruptor 
(Boh.), from Brazil, is very like H. ingens, but the rostrum in the male of the latter 1 is 
not nearly so stout, and has the funicular grooves parallel. 
