56 RHYNCHOPHORA. 
20. Apion mediocre, sp. n. 
Angustulum, nigrum, opacum, sat sparse griseo-setosum ; rostro subelongato, cylindrico, nitido; prothorace 
crebre, fortiter, parum argute, punctato ; elytris profunde sulcatis, interstitiis subplanis. 
Long. 23-24 millim. absque rostro. 
Hab. Mexico, Omilteme in Guerrero in July (H. H. Smith). 
Rostrum in the male scarcely so long as, in the female a little longer than, the head and 
thorax; head moderately short and broad; eyes somewhat prominent, separated by a 
rather wide space ; antenne inserted very near to the eyes, not farther in front of them 
than the width of the interocular space. Thorax rather slender, a good deal narrowed 
in front, feebly constricted anteriorly and near the base, somewhat coarsely and mode- 
rately closely, but vaguely, punctured, with a moderately elongate channel on the 
middle. Elytra rather long and narrow, quite dull, moderately broadly and deeply 
sulcate. Under surface with but little concentration of pubescence on the sides of the 
breast or under the eyes. Male with a large mucro at the apex of the hind tibie, and 
a rather smaller one on the intermediate tibie. 
This insect is destitute of any salient characters; there are apparently several other 
species closely allied to it, of which we have received only single specimens, and which 
I therefore do not think it proper to describe. 
21. Apion hystriculum, sp. n. 
Flongatum, nigrum, haud perspicue subsenescens, opacum, minus tenuiter griseo-setosum, utrinque prope scu- 
tellum pubescentie pallide macula parva; rostro mediocri, maris hirsuto; prothorace sat crebre, fortiter 
punctato; elytris interstitiis latis, planis; subtus dense pallido-setosum. 
Long. 24-3 millim. 
Hab. Mexico, Xucumanatlan 7000 feet and Omilteme 8000 feet, both in Guerrero 
(Hf. H. Smith). 
This differs from A. mediocre by the more dense clothing of hairs, by the fact that at 
the base of the elytra on the second interstice they are concentrated so as to form a small 
_ pallid spot, and by the rostrum of the male being densely setose except at the tip. The 
antenne are quite black, and are inserted very near the base of the rostrum; this latter 
in the male is but little longer than the thorax, rather stout, in the female it is as 
long as head and thorax, slender, and nearly free from hairs; the eyes are moderately 
large, somewhat distant from the thorax, and the interval between them is comparatively 
broad. The thorax is rather narrow, much narrowed anteriorly, and feebly transversely 
constricted in front, its punctuation is rather close and deep. LElytra elongate, finely 
sulcate, the sulci not deep, the interstices broad and flat. Under surface bearing much 
white setosity ; this is dense and conspicuous under the orbits. Middle and hind tibie 
of the male with a rather long mucro at the inner margin of the extremity. 
