TEXAN HYMENOPTERA. 255 



cence, knees, tips of tibiae and tarsi pale yellow or whitish; abdomen elongate, 

 sometimes slightly clavate, convex, shining, less green than head and thorax, 

 sides of three basal segments and the apical segments clothed with a short thin 

 pale pubescence, longer at apex, the second and third segments slightly con- 

 stricted at base, apical margin of the segments sometimes subtestaceous. 

 Length .15 — .25 inch. 



Twenty-six specimens. (Belfrage ; Boll.) Easily recognized by 

 the pale tarsi. 



Augochlora luoidnla. 



Augochlora lucidula, Smith, Brit. Mus. Gat. i., p. 81. 



Two % 9 specimens. (Belfrage.) 



Augochlora sumptuosa. 



Augochlora sumptuom, Smith, Brit. Mus. Cat. i., p. 82. 

 Four 9 specimens. (Boll.) 



Augochlora para. 



Halichis pura, Say, Bost. Journ. Nat. Hist, i., p. 395. 

 Ten £ 9 specimens. (Belfrage; Heiligbrodt.) 



Agapostemon tricolor. 



Halictus tricolor, St. Farg. Hym. ii., p. 289. 

 Six S specimens. (Belfrage; Boll; Heiligbrodt.) 



Agapostemon icruginosus. 



Agapostemon ceruginosus, Smith, Brit. Mus. Cat. i., p. 86. 

 One 9 specimen. (Heiligbrodt.) 



Agapostemon texanus, n. sp. 



9. — Bright green, tinged with blue in certain lights, clothed with a pale 

 ochraceous pubescence; head finely, very densely punctured, strongly tinged 

 with blue, middle of face transversely wrinkled; clypeus rather sparsely punc- 

 tured, apex purplish-black; labrum with dense pale ochraceous hairs; man- 

 dibles pale yellow, piceous at tips; flagellum pale brown beneath; mesotho- 

 rax more or less tinged with golden, extremely minutely and closely punctured, 

 interspersed with larger sparse punctures; scutellum sparsely punctured, base 

 of metathorax longitudinally wrinkled, the enclosed base with radiating 

 wrinkles, the surrounding carina sharply defined, the flanks strongly tinged 

 with blue; pleura densely, rather coarsely and confluently punctured; tegulse 

 pale testaceous, with a yellow spot anteriorly; wings hyaline, faintly dusky at 

 apex, nervures and stigma pale honey-yellow; legs brown-black, clothed with 

 ochraceous pubescence, four anterior knees yellowish; abdomen green, chang- 

 ing in certain lights, densely and finely punctured, clothed with a very short 

 fine pale sericeous pile, base and sides of the first, the two or three apical and 

 sides of intermediate segments, clothed with tolerably long pale pubescence, 

 the apical segment clothed with a dense black pubescence, apex of the seg- 

 ments depressed, the disk with a more or less obvious bluish or purplish hand. 

 Length .40 — .45 inch. 



Six specimens. (Belfrage; Boll) Allied to aeriiginosus, Smith. 



