66 RHYNCHOPHORA. 
Of this species three examples of the male sex were obtained. ‘The rostrum is rather 
long and stout, more slender at the tip, which is bare, the rest being sculptured and 
setose, the basal part is thick; the antenne are inserted very near the eyes, but still a 
little in front of them, they are yellow with the club darker; the eyes are widely 
separated and very convex. The thorax is elongate, much narrowed towards the front, 
and densely covered with a pale squamosity. The elytra are not very broad; they 
bear a good deal of squamosity, which on the first and third interstices is denser than 
elsewhere. The legs are stout, pale yellow, the tarsi fuscescent; the coxe and tro- 
chanters are red; the middle cox are slightly separated. 
The female will probably be found to possess a highly polished cylindrical rostrum, 
with a very short broad basal portion. 
43. Apion matricum, sp. n. 
Breve, latum, tenuiter setosum, nigrum, subopacum, pedibus rufis ; rostro mediocri, polito, summo basi crassiore ; 
prothorace conico, dense fortiterque punctato ; elytris profunde sulcatis. 
Long. 2 millim. 
Hab. Panama, San Feliz (Champion). 
Rostrum about as long as the head and thorax, dissimilar in the sexes—in the female 
slender and very polished, with the short part behind the insertion of the antenne 
abruptly thicker ; in the male less polished, and not so slender, the basal portion being 
not abruptly distinguished from the anterior portion; eyes large, convex, separated 
by an unusually broad space, the insertion of the antenne at a distance in front of 
the eyes rather less than the ocular interval, Thorax broad at the base, greatly 
narrowed in front, very coarsely punctured, with a channel along the middle behind. 
Elytra broad, with deep and distinct grooves in which the large punctures are very 
distinct. Legs dusky red, with the tarsi dark; all the coxe and the hind trochanters 
black, the anterior trochanters fuscescent; the middle coxe widely separated. One pair. 
Not at all closely allied to any other species of the genus. A. sancti-felicis is the — 
most similar, but has no incrassation of the base of the rostrum, and the head and 
eyes in it are very much narrower. 
44. Apion basirostre, sp.n. (Tab. III. fig. 12.) 
Latum, anterius attenuatum, nigrum, minutissime setosum, sat nitidum; pedibus crassis, rufo-testaceis, tarsis 
nigris ; antennarum basi rufo; prothorace conico, parce obsoleteque punctato ; elytris profunde sulcatis ; 
corpore subtus rufescente. 
Long. 23 millim. 
Hab. Pyyama, Tolé (Champion). 
Of this species only two specimens have been received, and it is probable that both 
are females; the rostrum is very slender, elongate, and quite polished, with a very 
short and broad basal portion; the eyes are convex, but not very large, very widely 
