ATTGOCHLOKA. 41 



black, with the base rufo-piceous. Head very finely and very 

 closely punctured ; the vertex dark olive-green, the clypeus pro- 

 duced, convex, shining, and with strong punctures ; the antennae 

 fulvous beneath, fuscous above. The mesothorax closely punc- 

 tured ; the metathorax with a series of short deep striae at the base, 

 rather strongly punctured beyond, and with a deeply impressed 

 central longitudinal line ; wings subhyaline ; legs rufo-piceous, the 

 femora and tibiae tinged with green. Abdomen tinged with green 

 on the two basal segments, the base of the first rufo-piceous ; ob- 

 long, clavate. 



Hah. Brazil. 



4. Cacosoma marginatum. 



Mate. Length 5 lines. — Head and thorax olive-green ; abdomen 

 black, with pale marginal fasciae, and having a sericeous gloss. 

 The clypeus produced, the front with pale fulvous pubescence ; the 

 mandibles pale testaceous ; antennae a little longer than the thorax, 

 fulvous, slightly fuscous above, the joints subarcuate. Thorax 

 opaque above ; the basal margin of the postscutellum with a narrow 

 Hue of pale tomentum ; wings pale fulvo-hy aline, the nervures and 

 stigma pale ferruginous; the tips of the femora, the tibiae, and 

 tarsi pale ferruginous. Abdomen clavate, the apical margins of 

 the segments bordered with shining whitish pubescence, the basal 

 margin of this border shining golden. 



Hah. Chili. 



5. Cacosoma jucimdum. 



Male. Length 3-3^ lines. — Head, thorax, and base of the abdomen 

 more or less bright green, with brassy tints. The head and thorax 

 with fine close punctures ; the clypeus produced, and with stronger 

 punctures ; the antennae obscurely rufo-piceous. The base of the 

 metathorax with rugulose striae ; wings subhyaline and iridescent, 

 slightly clouded at their apical margins; legs rufo-piceous, the 

 femora and tibiae tinted with green, the tarsi pale rufo-testaceous. 

 Abdomen black, shining, and clavate ; the base of the three basal 

 segments more or less green. 



Hah. St. Paulo, on the Amazons. 



AUGOCHLORA, Smith. 



1. Augochlora acidalia. 



Female. Length 4| Jines. — Head and thorax blue-green, sometimes 

 green, opaque; abdomen bright coppery red, varying in some ex- 

 amples to brassy green. The head above the antennae very closely 



