97 
than the three remaining taken together. Ovipositor of the 
female elongated (1^ line long)^ tubular; dorsal plate of the 
terminal abdominal segment pointed, ventral plate notched; 
ventral plate of the same segment in the males notched or 
sinuated, dorsal plate entire or sinuated. 
The general appearance of the two species which I place in 
this genus resembles that of the Anisopodi and of the larger 
species of Lepturges ; but the thickness of the antennae and the 
length of the ovipositor of the females forbid their being asso- 
ciated with either genus. 
1. Parcecus ellipticus, n. sp. 
P. ellipticus, tomerito carneo-cinereo vestitus : elytris plaga magna 
communi irregulari subtriangulari maculisque posticis nonnullis 
adjacentibus. Long. 3^-o lin. c? 2 • 
Head clothed with ashy-fulvous pile ; forehead dusky. An- 
tennae reddish ashy ; tips of most of the joints slightly thick- 
ened. Thorax clothed with pinkish-ashy pile, sparingly punc- 
tured on the disk and hind margin ; lateral spines conical, 
oblique, placed very near to the hind angles, and separated from 
the body of the thorax by a deep fovea. Elytra sinuate-truncate 
at the tip, both angles of the truncature produced into a short 
spine ; surface faintly punctured, thickly clad with pinkish-ashy 
changeable toraentum, and having a large, common, dark brown 
blotch of irregular triangular shape, the apex of which touches 
the scutellum, and the base (behind the middle of the elytra) 
broken into two or more elongate spots followed by an oblique 
spot (on each elytron) of the same hue lying nearer to the apex. 
Body beneath reddish; sides of breast dusky. Legs dull reddish, 
sparsely clothed with ashy pile. Apical ventral segment in the 
males deeply notched, dorsal entire. 
Fonte Boa, Upper Amazons, on fallen trunks of gigantic trees 
of the order Leguminosse. The pupse were found in numbers, 
lying in oval chambers formed by the larvse between the bark 
and the wood. 
2. Parcecus rigidus, n. sp. 
P. oblongo-ellipticus, parum convexus, tomento cinereo vestitus : 
thorace fusco notato : elytris lateribus fuscis, cinereo maculatis. 
Long. lin. S . 
Head clothed with ashy-fulvous pile, forehead dusky. An- 
tennae reddish, clothed with ashy pile. Thorax rather strongly 
punctured on the disk; lateral spines conical, oblique, placed 
very near the hind angles ; ashy, varied with small, oblong fus- 
cous spots, two of which form an interrupted vitta on each side 
of the dorsal line. Elytra strongly sinuate-truncate at the tip, 
both angles of the truncature produced into spines, the external 
L 
