of the Amazon Valley. 167 



larger than the rest; apices themselves margined with ashy. 

 Body beneath clothed with yellowish- ashy pile; legs ringed with 

 ashy and black. 



$ 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 einereo multiguttatis, apice transverse 

 sinuato-truncatis : antennis albo annulatis. Long. 4^ lin. <S . 



Head black ; margins of the eyes and a central vitta, from the 

 middle of the forehead to the middle of the vertex, ashy. An- 

 tennae stout, scarcely twice the length of the body {S), 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 vittse on the disk 

 and one on each 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, ringed with grey and black. 



6 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 

 baud attingentibus einereo cinctis, apice oblique sinuato-truncatis. 

 Long. 3i-5i. c? ?. 



Head ashy brown. Antennae 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 6 ) ; surface with the basal half punctured, 

 hght brown, each elytron with three zigzag or irregular trans- 

 verse spots or fasciae 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 



