46 AlSTDEENIDiE. 



13. Augochlora nana. 



Female. Length 1| lines. — Head and thorax brassy green, abdomen 

 pale ferruginous. Head rotundate, very finely and closely punc- 

 tured ; the mandibles, apical margin of the clypeus, and the an- 

 tennae pale ferruginous, the latter slightly fuscous above. Thorax 

 very finely punctured ; the base of the metathorax finely rugulose, 

 surrounded by a smooth shining space ; wings clear hyaline and 

 splendidly iridescent, nervures and tegulae pale rufo-testaceous ; 

 legs the colour of the abdomen, which is smooth, shining, and im- 

 punctate. 



Hab. Santarem. 



14. Augochlora thalia. 



Female. Length 3-3J lines. — Brassy green, with, usually, coppery 

 tints on the thorax and abdomen. Head minutely and very closely 

 punctured ; the clypeus strongly so, its anterior margin black ; the 

 mandibles ferruginous ; the flagellum of the antennae fulvous be- 

 neath. Thorax finely punctured ; the base of the metathorax with 

 radiating striae, the sides with white pubescence ; wings fulvo- 

 hyaline, the nervures dark fuscous, the tegulae rufo-piceous ; the 

 tibiae and tarsi ferruginous, more or less fuscous above ; the femora 

 and coxae obscure rufo-piceous. Abdomen very bright and shining 

 at the base, more or less covered with fine hoary pilosity ; beneath 

 blackish. 



Male. Smaller than the female, but of the same colour ; the 

 clypeus more produced, and its anterior margin narrowly yellowish ; 

 the antennae longer and stouter ; the legs, except the coxae, pale 

 ferruginous ; the abdomen narrower than in the female, but pubes- 

 cent and similarly coloured. 



Hab. St. Paulo and Villa Nova. 



15. Augochlora briseis. 



Female. Length 3J lines. — Head green, thorax and abdomen ob- 

 scurely purple. Head shining brassy green, finely and closely 

 punctured, the clypeus with a few strong punctures; mandibles 

 ferruginous ; flagellum of the antennae fulvous beneath. The 

 thorax coarsely punctured above, of a bright purple colour, with 

 an abbreviated impressed line over each tegula; the metathorax 

 smooth and shining; wings hyaline and iridescent, and faintly 

 clouded at their apex; legs rufo-piceous. The abdomen sub- 

 clavate, the basal segment rather strongly punctured ; the basal 

 half of the second more finely so, the following segments shining 

 and impunctate. 



Hab. Amazons, St. Paulo. 



