Polydacrys

Mandibles with a truncated process in front (bearing the deciduous piece), usually extending beyond the apex of the rostrum; rostrum with a sharply-defined triangular nasal plate limited behind by a v-shaped ridge or groove, which is produced into a short carina or groove posteriorly, the scrobes descending to the lower surface; funiculus 7-jointed; scape not reaching beyond the eyes, the latter large; mentum rather large, almost covering the maxillæ; vibrissæ wanting or indistinguishable from the general vestiture*; anterior coxæ very narrowly separated; femora abruptly clavate, unarmed, the anterior pair stouter than the others; tibiæ setose, the anterior pair unguiculate and serrulate, the articular surface of the posterior pair open and slightly ascending; body oblong, squamose and setose, fully winged.* In a fresh example of P. modestus? captured by Mr. H. H. Smith in St. Vincent, they are represented by a single very long seta only, which is wanting in the worn type of Gyllenhal.

The species of this genus, the type of which is P. modestus, Gyll., from Cuba, may be known by the following characters:—