of the Amazon Valley. 
299 
tiori_, fascia lata obliqua pone medium, apiceque testaceo- 
albis; femoribus clavatis. 
Long. 4-5i lin. $ 9 . 
In the female, the antennal carinae are with difficulty 
perceived, being visible only in certain lights, and un- 
accompanied by a groove. 
Sah. — Eiver Tapajos, Para, Ega. 
4. Ihidion Leprieuri, n. sp. 
I. oedicnemi affine. Elongatum, capite thoraceque opa- 
cis, hoc argenteo-sericeo, antice transversim elevato et 
tuberculoso, disco postice bi-tuberculato ; elytris apice 
extus unidentatis, supra politis, punctis setiferis paucis, 
obscure fulvo-brunneis, plus minusve fusco-plagiatis, ma- 
cula magna ovali fusco-marginata versus basin, vitta 
lata obliqua pone medium (ad suturam angustata), et 
apice testaceo-albis ; antennis pallide rufescentibus, ar- 
ticulo 3io lateraliter vix perspicue carinato ; femoribus 
fortiter clavatis. 
Long. 5|-6 lin. $ . 
Hah. — Obydos, Lower Amazons ; also Cayenne. 
Received from Paris, under the MS. name here adopted. 
5. Ihidion dilectum, n. sp. 
Elongatum, testaceo - rufum, fulvo - setosum ; capite 
piceo ; thorace dorso quinque-tuberculato, argenteo-seri- 
ceo ] elytris unispinosis, nitidis, parte basali ultra 
medium fulva, parte apicali nigra, macula magna rotun- 
data versus basin, vitta obliqua pone medium, apiceque 
testaceo-albis ; antennis (articulo basali piceo excepto) et 
pedibus pallide testaceo-rufis ; pedibus elongatis, femo- 
ribus abrupte clavatis. 
Long. 4J lin. A • 
Hah. — Ega. 
6. Ihidion digrammumj n. sp. 
Elongatum, rufo-castaneum, nitidum; thorace medio 
valde angustato, medio dorsi bispinoso, postice bituber- 
culato ; elytris linea flava paulo obliqua discoidali ante 
medium. 
