HYMENOPTERA. 73 



fluced ; the antennae testaceous beneath. The base of the meta- 

 thorax has a number of irregular radiating elevations becomino- 

 obsolete at the margin of the truncation of the metathorax, the 

 sides of which as well as the whole thorax beneath is rugose ; 

 tegulae pale testaceous ; wings hyaline, beautifully iridescent ; 

 the legs testaceous, the knees and tarsi palest ; abdomen testa- 

 ceous, having an aeneous reflection, apex covered with white pu- 

 bescence, the anal rima ferruginous. 



Obs. This species closely resembles H. inconspicuus, but is 

 much more dehcately sculptured and the clypeus more pi'oduced, 

 Hab. N. America. (Coll. F. Smith.) 



115. Halictus inconspicuus, n. s. B.M. 



Female. Length 1^ line. — Head and thorax brassy-green, 

 finely and closely punctured, the former rounded ; the enclosed 

 space beneath the post-scutellum roughly granulated ; the wings 

 hyahne, splendidly iridescent, the nervures and tegulae pale tes- 

 taceous; the legs pale testaceous. Abdomen rufo-testaceous, 

 smooth and shining ; the apex pale testaceous. 

 Hab. North America. 



Genus 16. AUGOCHLORA, n.g. 



F. Smith's MSS. (Details, Plate III.) 



Head usually about the width of the thorax, the eyes subemar- 

 ginate, in some species distinctly reniform. Thorax globose, 

 anterior wings having one marginal and three submarginal cells ; 

 the first submarginal cell as long as the second and third united, 

 the first recurrent nervure uniting with the second transverse 

 cubital nervure. Abdomen ovate, in the females subelongate- 

 ovate : — all the species brilliant metalhc green. 



1. AuGOCHLORA DIVERSIPENNIS. B.M. 



Halictus ? diversipennis, St. Farg. Hym. ii. 282. 23, $ . 



Male. — Brilhant golden-green, head closely and finely punc- 

 tured, the clypeus very convex, coarsely punctm-ed, its anterior 

 margin with a narrow yellow fascia, the labrum and mandibles 

 yellow, the third joint of the antennae yellow beneath. Thorax 

 rather strongly punctured, wings hyaline, tegulae and nervures 

 pale testaceous ; the knees, extreme apex of the tibiae and the 

 tarsi yellow testaceous. Abdomen ovate, thinly covered at the 

 base and sides with fulvous pubescence, the apical margins of 

 the segments fringed with fulvous pubescence, apex of the ab- 

 domen beneath ferruginous. 

 Hab. Para, Brazil. 



