of the Amazon Valley. 155 
2 Ovipositor projecting half a line beyond the elytra ; dorsal 
plate ending in a blunt point. 
I took many examples of this elegantly marked species in the 
forest at Ega. 
9. Nyssodrys bispecularis, White. 
Leiopus bispecularis, White, Cat. Long. Col. Brit. Mus. vol. 11. p. 384. 
* T. fusco-cinereus ; thorace medio vitta lata nigro-fusca : elytris sin- 
gulis macula magna subovata obliqua suturam non attingente pal- 
lidoque cincta, apice truncatis: antennis ferrugineis. Ega” 
(White; 7. c.) Long. 24-34 lin. ¢ Q. 
This pretty species is of oblong shape, slightly convex and 
depressed a little before the middle of the elytra. The thorax 
is but little widened from the front, and the lateral spines are 
scarcely perceptible at the pot where the thorax is broadest— 
namely, a short distance from the hind angles. The apical 
ventral segment in the ¢ is broadly notched, and the ovipositor 
of the 2 projects but little beyond the tips of the elytra. 
Common at Ega, on broken boughs and trunks of fallen trees. 
10. Nyssodrys guttula, n. sp. 
N. oblonga. subdepressa, brunnea, cinereo guttata: thoracis spinis 
lateralibus brevibus conicis, ab angulis posticis distantibus : elytris 
subtransverse truncatis: antennis albo quadriannulatis. Long. 
+ lin. Co. 
Head tawny, vertex black, with a central tawny line. An- 
tenn black, base of second, third, fourth, and fifth joints with 
a whitish ring. Thorax scarcely widened from the front to the 
tips of the spines, which are obtusely conical and situated at a 
distance from the hind angles; ashy tawny; surface dark brown, 
with three ashy spots in the middle, and two longer ones near 
each of the front angles. Elytra oblong, rather depressed, sub- 
transversely and simply truncated, surface dark brown, sprinkled 
throughout with little spots and patches of a tawny-ashy hue. 
Body beneath and legs clothed with ashy-tawny pile. 
¢ Apical dorsal and ventral plates very slightly emarginated. 
Forests of the Tapajos. 
11. Nyssodrys incisa, un. sp. 
NV. oblonga, subdepressa, olivaceo-brunnea, cinereo guttata: thoracis 
spinis lateralibus brevibus, conicis, ab angulis posticis distantibus : 
elytris smuato-truncatis : antennis albo annulatis. Long. 33 lin. 2. 
Head blackish, vertex with a central ashy line. Antenne 
black, base of second, third, fourth, and fifth joints with a whitish 
ring. Thorax scarcely widened from the front to the tips of the 
spies, which are obtusely conical and situated at a distance 
from the hind angles; dingy ashy, sides each with two short 
