0/ the Amazon Valley. 415 



12. Chrysoprasis aureicoUis. 

 White, Cat. Longic. Brit. Mus. p. 149. 



Parva, capite thoraceque cupreo-aureis, creberrime 

 reticulato-punctulatis, hoc prope basin subiter dilatato- 

 rotundato, deinde usque ad apicem attenuate ; elytris 

 viridibus, laete sericeis, evecto-setosis, apice truncatis, 

 angulo exteriori dentate ; sternis viridi-geneis, nitidis, 

 omnibus crebre minute punctulatis, fulvo-decumbenti- 

 pilosis ; abdomine rufo ; pedibus nigris, longe setosis ; 

 antennis utroque sesu haud corpore longioribus, nigris, 

 articulis haud spinosis. 



Long. 3i lin. c? ? . 



Hab. — Amazons ; generally distributed and common. 



13. Chrysoprasis jloralis, n. sp. 



Nigra, capite supra et prothorace toto igneo-cupreis, 

 vix nitidis, grosse reticulato - punctatis ; hoc postice 

 dilatato-rotundato ; elytris sericeis, setosis, truncatis, 

 angulo exteriori spinoso ; raetasterno aeneo-tincto, punc- 

 tulato, insterstitiis lasvibus ; antennis nigris, utroque sexu 

 vix corpore longioribus, articulis simplicibus. 



Long. 3-4 lin. S ? . 



Hah. — Santarem, and River Tapajos; at flowers, occa- 

 sionally in great numbers. 



14. Chrysoprasis hrevicornis, n. sp. 



Lgete viridi-tenea, capite thoraceque auratis, crebre 

 reticulato-pu.nctatis, hoc juxta basin rotundato-ampliato, 

 deinde usque ad apicem attenuate ; elytris sericeo-nitidis, 

 setosis, truncatis, angulo exteriori dentate ; sternis 

 nitidis, crebre punctulatis, sparsim fulvo-pilosis ; abdo- 

 mine rufo ; pedibus nigris ; antennis nigris, utroque sexu 

 vix corpore longioribus, articulis simplicibus. 



Long. 3-4 lin. J ? . 



Hah. — River Tapajos, Ega, St. Paulo ; common. 



15. Chrysoprasis sobrina, n. sp. 



C. brevicorrd proxime affinis ; differt solum statura 

 majori, antennis (^ corpore sesqui longioribus. Laete 



