of the Amazon Valley. 157 
larger than the rest; apices themselves margined with ashy. 
Body beneath clothed with yellowish-ashy pile; legs ringed with 
ashy and black. 
2 Ovipositor greatly elongated and tubular, projecting one 
and a half line beyond the tips of the elytra; dorsal plate 
narrowed to the tip and pointed, ventral truncated. 
Ega, on trunks of felled trees. 
14. Nyssodrys vitticollis, n. sp. 
N. oblonga, robusta, subconvexa, atro-fusca, sericea: thorace vittis 
quinque cinereis: elytris cinereo multiguttatis, apice transverse 
sinuato-truncatis: antennis albo annulatis. Long. 4} lin. ¢. 
Head black ; margins of the eyes and a central vitta, from the 
middle of the forehead to the middle of the vertex, ashy. An- 
tennz stout, scarcely twice the length of the body (¢), black, 
base of third joint pallid, bases of fourth, fifth, and six joints 
with a whitish ring. Thorax slightly widened from the front to 
the tips of the lateral spines, which are prominent and conical, 
the space between them and the hind angles being indented ; 
surface blackish brown, with three clear ashy vittz on the disk 
and one oneach side. Elytra oblong-oval, apex transversely sub- 
sinuate-truncate, angles prominent; surface punctured, except 
towards the apex, deep silky brownish black, sprinkled with a 
large number of ashy spots. Body beneath clothed with yel- 
lowish-grey pile. Legs stout, rmged with grey and black. 
¢ Apical ventral segment rather deeply and broadly notched. 
S. Paulo, Upper Amazons. 
15. Nyssodrys caudata, n. sp. 
N. oblongo-elongata, subdepressa, brunnea: elytris utrinque fasciis 
tribus fortiter angulatis atro-brunneis (prima interrupta) suturam 
haud attingentibus cinereo cinctis, apice oblique sinuato-truncatis. 
Long. 34-53. 5 Q. 
Head ashy brown. Antenne rusty red, tips of joints darker. 
Thorax slightly widened from the front to the tips of the spines, 
which are short and conical, the space between them and the 
hind angles being indented or slightly sinuated ; surface light 
brown, sometimes with greyish marks. Elytra elongate, slightly 
narrowed towards the tips, scarcely convex, apex obliquely 
sinuate-truncate (less obliquely and angles more prominent in 
the ? than in the ¢); surface with the basal half punctured, 
light brown, each elytron with three zigzag or irregular trans- 
verse spots or fascize of a dark-brown hue encircled with ashy ; 
the first of these, near the base, consists, on each elytron, of 
two (sometimes three or even four) separated spots ; the second 
is a zigzag belt, broad on the margin, but narrow on the disk 
