of the Amazon Valley. 439 
Sub-fam. Disteniinj^. 
Genus Distenia, 
Serville, Encycl. Meth. x. 485 ; Lacord. Gen. ix. 227. 
1. Distenia agroides, n. sp. 
Elongata^ supra violacea^ nitida^ erecte setosa, subtus 
chalybeo-nigra^ nitida ; antennis testaceo-rufis, articulis 
6-10 {A) infra longe peniciilatis ; pedibus rufo-testaceis, 
geniculis infuscatis^ femoribus subclavatis^ apice baud 
spinosis ; thorace supra grosse tuberculato ; elytris apice 
valde attenuatis, unispinosis^ inter spinam et anguium 
suturalem breviter oblique truncatis, supra grosse aspere 
striato-punctatis^ apicem versus fere Isevibus. 
Long. 7 lin. ^ . 
Hah. — Tapajos. 
Concealed within a folded leaf of a tree, like the 
species of Agra {Garahidce) ^ which the metallic Distenioe 
somevv^hat resemble. In repose the antennae are porrect. 
2. Distenia splendens, n. sp. 
Supra aenea, elytris splendide viridi-aeneis, breviter 
erecto-setosis, subtus nigro-aenea, nitida ; antennis arti- 
culis 1-3 nigro-aeneis, caeteris rufo-testaceis, infra ( $ ) 
longe peniciilatis ; pedibus flavo-testaceis, femoribus 
medio et apice nigris incrassatis, apice haud spinosis ; 
antennis articulo Imo sub-abrupte clavato ; thorace grosse 
tuberculato ; elytris apice unispin osis, inter spinam et 
anguium suturalem breviter oblique truncatis, supra grosse 
striato-punctatis, interstitiis nonnullis costatis, apice 
sublaevibus. 
Long. 84 lin. A . 
Hah. — Ega. 
3. Distenia denticornis, n. sp. 
Robusta, nigro-^nea, nitida, elytris viridi-tinctis ; an- 
tennis articulis 1-3 nigro-seneis, caeteris piceo-rufis, infra 
(d) longe sparsim peniciilatis, articulo primo , gradatim 
incrassato, grosse scabroso, infra denticulis vaiidis circiter 
Garmato; thorace grosse tuberculato;. elytris longe 
erecte fulvo-setosis, apice unispinosis, angulo suturali 
H H 2 
