of the Amazon Valley. 
Genus Chrysoprasis. 
411 
Serville, Ann. Soc. Ent. Fr. 1834^ p. 5; Lacord. Gen. 
ix. 125. 
1. Chrysoprasis auronitens, n. sp. 
Minus elongata, robusta,l«te viridi-aenea, tborace supra 
cupreo-aurato^ abdomine rufo ; capite grosse punctato- 
rugoso; tborace lato, supra creberrime punctate; eljtris 
subdepressisj breviter decumbenti-setosisj^apice truncatis; 
prothorace subtus crebre punctate-rugose, griseo-piloso ; 
metasterno grosse crebre foveolato-punctato, griseo- 
piloso ; pedibus robustis, dense punctatis, nigris, femori- 
bus viridi-geneis ; antennis ^ corpore paulo longioribus, 
robustis, nigris, articulo basali crebre foveolato-punctato, 
3-6 apice unispinosis. 
Long. 5-5J lin. d" ? • 
Hah. — Para. 
I have seen this species in some collections named 
G. rufiventrisj Dej. 
2. Chrysoprasis Sthenias, n. sp. 
C. auronitenti valde affinis, differt tborace concolori ; 
minus elongata, robusta, laete viridi-aenea, abdomine 
rufo ; capite grosse scabroso-punctato ; thorace lato, 
supra creberrime reticulato-punctato ; elytris subde- 
pressis, breviter decumbenti-setosis, apice truncatis ; 
prothorace et mesothorace subtus crebre punctato-rugo- 
sis, griseo-pilosis ; metasterno grosse crebre foveolato- 
punctato, griseo-piloso; pedibus robustis, dense punc- 
tatis, nigris, femoribus viridi-aeneis ; antennis ^ corpore 
paulo longioribus, crassis, apice attenuatis, nigris, articulo 
Imo grosse punctate, viridi-aeneo, 3-6 apice unispinosis. 
Long. 4-6^ lin. d $ • 
Hah . — Bga and St. Paulo. Very abundant on branches 
of felled trees. 
3. Chrysoprasis rotundicollis, n. sp. 
Minus elongata, depressa, laete viridi-acnea, abdomine 
rufo, antennis pedibusque totis nigris, metasterno nigro. 
