of the Amazon Valley. 323 



The elytra are shorter by one-third than the abdomen, 

 and widely dehiscent at the suture ; the vitreous part 

 does not reach to near the base, which is thickly punc- 

 tured; the femora are gradually but strongly clavate. 



Generally distributed throughout the Amazons ; flying 

 about branches of newly- felled trees. 



7. Odontocera 'punctata. 



Stenopterus punctatus, Klug, Nov. Act. Ac. Cses. L. C. 

 Nat. Cur. xii. 471, pi. xliv. f. 4. 



Nigra, thorace supra leete rufo-coccineo, crebre reticu- 

 lato-punctato, femoribus posticis basi albo-testaceis ; 

 an tennis incrassatis et subserratis ; pedibus posticis valde 

 elongatis, femoribus clavatis ; elytris abdomine triente 

 brevioribus, valde dehiscentibus, disco vitreo-flavis. 



Long. 4^ lin. 



Hab. — River Tapajos. 



8. Odontocera ornaticoUis, n. sp. 



Nigra, Isete aureo-tomentosa, antennis pedibus abdo- 

 mineque testaceo-rufis ; thorace magno, ovato, postice 

 multo angustato, supra reticulato-punctato, margine 

 antico et vittis quatuor antice abbreviatis leete aureo- 

 tomentosis ; elytris abdomine paulo brevioribus, angustis, 

 mox pone scutellum dehiscentibus, fulvis, vitreis prope 

 basin, fascia obliqua et margine laterali nigris. 



Long. 6 lin. S • 



B.ah. — Santarem; at flowers. A superb species; the 

 hind femora are very gradually clavate. 



9. Odontocera fur cif era y n. sp. 



Robusta, flava, nigro-setosa, antennis abdomine pedi- 

 busque testaceo-rufis; thorace transversim ovato, litura 

 furcata basi annexa maculaque laterali nigris; elytris 

 abdomine paulo brevioribus, a medio abrupte attenuatis, 

 disco flavo-vitreis, marginibus rufis, basin versus nigris, 

 prope scutellum macula obliqua nigra; antennis brevi- 

 bus, ab articulo 3io incrassatis ; pedibus posticis robustis, 

 longe hirsutis, femoribus valde hand abrupte clavatis. 



Long. 6 lin. $ . 



Hah. — River Tapajos. 



