82 HYMENOPTERA. 



clypeus, its anterior margin, labrum and mandibles dark rufo- 

 piceous, the flagellum testaceous beneath. Thorax, the disk very 

 closely covered with punctures of different sizes, towards the 

 sides being finer than those down the centre ; metathorax at the 

 base shining, slightly roughened immediately below the post- 

 scutellum, the sides strongly punctured and covered with long 

 pale pubescence ; wings hyaline, the nervures and outer margin 

 of the tegulae pale testaceous ; legs golden-green, with a testa- 

 ceous hue ; tarsi testaceous, the basal joint having a green tinge 

 above, covered with pale pubescence, the posterior pair densely 

 covered with pale pubescence, the floccus white. Abdomen 

 thinly covered with pale pubescence, beneath rufo-testaceous, 

 the second, third and fourth segments having a bright golden 

 hue. 

 Hab. North America. 



28. AUGOCHLORA PURA. B.M, 



Halictus purus, Say, Eost. Journ. Nat. Hist. i. 395. 4. 

 Hab. United States; Trenton Falls; Mount Pleasant, Ohio; 

 Nova Scotia. (E. Doubleday and G. Barnston, Esqrs.) 



29. AUGOCHLORA AURATA, n. s. B.M. 



Female. Length 2^ lines. Green, the thorax and abdomen 

 having a golden lustre ; the face finely rugose ; the vertex closely 

 and finely punctured ; the clypeus produced, covered with large 

 punctures; the apex, labrum, and mandibles at their apex ferru- 

 ginous, the flagellum beneath testaceous. Thorax very closely 

 and finely punctured ; base of the metathorax has an enclosed 

 space finely granulated and surrounded by a sharp curved ridge ; 

 wings hyaline and iridescent, nervures and tegulse pale testaceous ; 

 legs rufo-testaceous. Abdomen thinly covered with short pale 

 pubescence, beneath rufo-testaceous. 

 Hab. St. John's Bluff, East Florida. (E. Doubleday, Esq.) 



30. AUGOCHLORA SUMPTUOSA, n. s. B.M. 



Female. Length 4^ lines. Bright golden-green, head and 

 thorax very closely and finely punctured, the clypeus covered 

 with large deep punctures, labrum and mandibles rufo-piceous, 

 the latter tinged with green at their base ; the base of the meta- 

 thorax enclosed by an arched ridge, the enclosed space granu- 

 lated, the sides of the truncation margined by sharp carinae ; 

 wings subhyaline, nervures testaceous, tegulse coppery-green ; 

 legs green, tarsi fulvo-testaceous, the pubescence fulvous. Ab- 



