of the Amazon Valley. 209 



tiorij fascia lata obliqua pone medium, apiceque testaceo- 

 albis; femoribus clavatis. 



Long. 4-54 lin- ^ ? • 



In the female, the antennal carinae are with difficulty 

 perceived, being visible only in certain lights, and un- 

 accompanied by a groove. 



Sah. — River Tapajos, Para, Ega. 



4. Ihidion Leprietiri, n. sp. 



I. oedicnemi affine. Elongatum, capita 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 suturani 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-sei-i- 

 ceo ; elytris unispinosis, nitidis, parte basali ultra 

 medium fulva, parte apicali nigra, maculS, magna rotuh- 

 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. 4^ lin. c? . 



Hah.— 'Ega. 



6. Ihidion digrammum, n. sp. 



Elongatum, rufo-castaneum, nitidum; thorace medio 

 valde angustato, medio dorsi bispinoso, postice bituber- 

 culato ; elytris linea flava paulo obliqua discoidali ante 

 medium. 



