329 
of the Amazon Valley. 
2. Acyphoderes odyneroides. 
White^ Cat. Longic. Brit. Mus. p. 196^ pi. v. f. 3. 
AngustatuSj niger ; tliorace oblongo-ovato^ costis tribus 
elevatis grosse punctatis^ interstitiis aureo-tomentosis ; 
elytris apicem segmenti ventris tertii attingentibus, atten- 
uatis, valde debiscentibus, apice acuminatis^ pallide tes- 
taceo-fulvis^ vitreis^ margine prope bumeros fusco, baud 
profunde punctate ; abdomine vespiformij cinctubus 
quatuor flavis ; pedibus gracilioribus, femoribus clavatis. 
Long. 7 lin. d' ? . 
Found on tbe flowers of a low tree called Fitomba, 
and bears tbe most deceptive resemblance to a species 
of wasp seen on tbe same flowers. I was never sure 
wbetber I bad captured tbe beetle or tbe wasp_, until 
I bad closely examined tbe insect in tbe bottom of tbe 
net. 
Hah. — Santarem. 
Genus Tomopteeus. 
Serville_, Ann. Soc. Ent. Fr. 1833^ p. 544 ; Lacord. Gen. 
viii. 509. 
Distinguisbed from Odontocera by tbe short sub quadrate 
elytra, wbicb do not pass tbe level of tbe posterior coxse ; 
and from Acyphoderes by tbe same character, and by tbe 
convex closely punctured thorax. 
1. Tomopterus ohliquus, n. sp. 
T. staphylino valde affinis, difiert elytris prope suturam 
oblique truncatis. Niger, opacus ; antennis rufescentibus, 
fusco-maculatis ; tborace grosse reticulato-punctato, mar= 
ginibus antico et postico fasciaque mediana medio inter- 
rupta aureo-tomentosis ; elytris brevibus, extus et apice 
rotundatis, prope suturam oblique truncatis, basi fascia 
rufescente, disco linea obliqua flava ; scutello nigro, apice 
aureo-tomentoso ; pectore utrinque aureo-bifasciato, ab- 
dominis segmento primo rufo, reliquis aureo-marginatis ; 
pedibus rufescentibus, femoribus basi albo-testaceis. 
Long. 3J lin. ^ . 
Hah . — Eiver Tapajos. 
