Apion matricum

Hab.PANAMA, San Feliz (Champion).

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.

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 antennæ 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 antennæ 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 coxæ and the hind trochanters black, the anterior trochanters fuscescent; the middle coxæ 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.