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tiiictness from Amphionycha and Hemilophus. It embraces nu- 
merous tropical American species, including Saperda triangu- 
laris (Germar), Iceta (Newman), and others. 
Erana cincticornis, n. sp. 
E. cylindrica, nigra, pilosa, fronte et vitta laterali thoracis albo 
sericeis ; antennis nigris, articulis tertio et quarto basi dense 
setosis, quinto et quarto apice albis ; elytris apice conjunctim 
rotundatis, angulis suturalibus spinosis. Long. 3^-4 lin. 
Head convex above ; front and cheeks clothed with silky 
whitish pubescence; vertex naked, black, coarsely punctured. 
Antennse a little longer than the body, ciliated (except near the 
apex), black, the fifth and apical half of the fourth joints white ; 
the third and basal half of the fourth joints appear to be thicker 
than the rest of the antennse, owing to their dense clothing of 
short hairs. Thorax transversely depressed near the apex ; sur- 
face clothed with very long and fine but erect hairs, centre part 
black; sides each with a pale vitta, emitting a short branch in 
the middle. Elytra cylindrical, apex rounded, with the sutural 
angles each armed with a short spine; surface clothed with erect 
hairs which are longest near the base, thiekly punctured, dull 
black. Body beneath black, thinly clothed with grey pile; sides of 
breast and abdomen pale. Legs yellowish; tarsi and apices of 
tibiae black. 
Ega and S. Paulo, Upper Amazons. 
Group Saperdince. 
Genus Amillarus, Thomson. 
Thomson, Archives Entom. i. p. 312. 
Ill this very distinct genus of Saperdinae the body is elongate 
linear, and, in the males, narrowed behind. The eyes are hemi- 
spheric, with a narrow angular emargination for the reception 
of the antennae, the latter being greatly elongated (twice the 
length of the body), with very long and gradually thickened 
basal joint. The legs are moderately elongated, together with 
the tarsi. But the most characteristic peculiarity of structure 
is the form of the claw-joint of the tarsi and of the claws. In 
both sexes the claw-joint is longer than the second and third 
joints taken together; but in the males it is also rather abruptly 
dilated and thickened beneath from a short distance beyond the 
base. The claws are nearly straight, compressed, and scarcely 
divergent. 
Amillarus mutabilis, n. sp. 
A. elongatus, linearis, breviter parce setosus, fulvo-rufus, pectore 
