of the Amazons Valley. 369 
Head somewhat prolonged on the vertex; face elongated and 
dilated below the eyes. Thorax short, a little narrower than the 
head. Elytra dilated from beyond the middle, apex briefly 
emarginated. Legs short; claws bifid. Prosternum narrower 
than the mesosternum. Antenne about the length of the body, 
or a little shorter; basal joimt greatly elongated, gradually and 
slightly thickened from base to apex, ciliated; third and fourth 
joints greatly elongated, hairy and ciliated beneath, sometimes 
very thickly ciliated ; following joints short and sparingly setose. 
The lateral carina of the elytra is thick and prominent, and ex- 
tends from the shoulder to the apex. 
1. Spathoptera capillacea, n. sp. 
S. elongata, postice dilatata, nigra; capite thoraceque vitta laterali 
fulva, fronte rufescente ; elytris macula angulari humerali fasciaque 
lata pone medium fulvis; antennis articulis tertio et quarto haud 
dilatatis, infra pilis longis densissimis nigris vestitis. Long. 6 lin. 
Head coarsely punctured; vertex elongated, shining black, 
with a fulvous vitta on each side behind the eye ; face dull red- 
dish, clothed with scant tawny pile. Antenne a little shorter 
than the body, black; fifth and sixth joints reddish; third and 
fourth joints greatly elongated, neither of them thickened, but 
furnished on their under surface with a dense fringe of long 
thick haus. Thorax coarsely punctured, shining black, with a 
fulvous stripe on each side. LHlytra with their dilatation com- 
mencing a little before the middle, at first very gradual, at about 
two-thirds their length abruptly.dilated ; apex of each rounded, 
and offering a small triangular emargination; surface finely 
setose; disk closely punctured, and with two very fine raised 
lies, united before the apex (where alone they are distinct) ; 
dilated margins (outside the strong lateral carma) shagreened 
and traversed, to the apex, by a nearly straight carima; colour 
black, with a basal spot on each shoulder bent towards the su- 
ture, and a broad fascia beyond the middle, fulvous; the edges 
both of the humeral mark and the fascia irregular. Body be- 
neath and legs black ; coxee and thighs beneath pale testaceous. 
liga. 
2. Spathoptera mimica, n. sp. 
S. elongata, postice dilatata, fulva, capite vitta laterali nigra, thorace 
lateribus maculaque triangulari dorsali nigris; elytris nigris, ma- 
cula hnmerali angulata fasciaque lata pone medium fulvis ; antennis 
breviter hirsutis, nigris, articulis quinto et sexto testaceis, quarto 
incrassato. Long. 6-73 lin, 
Head fulvo-testaceous, punctured ; sides behind the eyes with 
a black stripe; vertex elongated, convex. Antenne wholly 
clothed with shortish hairs, black ; fifth and sixth joints pale 
Ann. & Mag. N. Hist. Ser. 3. Vol. xvii. 24 
