310 [April 



rax; green, with a deep blue reflection in certain lights; basal margin 

 of the third segment broadly black, the apical margin truncate, broadly 

 depressed, smooth and polished, margined anteriorly with a transverse 

 row of deep punctures, with an acute carina down the middle, project- 

 ing over the apical margin and forming a short acute tooth, the ex- 

 treme lateral angles small and acute; venter deeply concave and green. 

 Length 4 — 5 lines: expanse of wings ('».] — ~il lines. 

 Three specimens. 



V. — Apical margin of third abdominal segment with four teeth. 

 (5. Chrysis lauta, n. sp. 



Golden-green, densely punctured, thickly pubescent; wings hyaline: apex 

 of abdomen with four subacute teeth, and before the apex a transverse row of 

 subquadrate deep punctures. 



Female. — Lame, robust, elongate and subparallel, golden-green, 

 densely and coarsely punctured, rather thickly clothed with short pale 

 pubescence ; eyes very large, rounded, face narrow, depressed behind 

 the antenna); a smooth shining space on each side of the posterior 

 ocelli; mandibles black, green at base; antennae dull-black, sericeous, 

 scape green. Thorax bright golden, somewhat tinged with coppery on 

 the sides; disk of prothorax sulfate; anterior margin of mesothorax 

 transversely excavated on each side, the dorsal lines distinct ; metatho- 

 rax obtusely produced behind, with a smooth puncture on the disk, the 

 posterior angles prominent, flattened, divergent, subacute and some- 

 what claw-shaped ; tegulae golden-green. Wings nearly hyaline, having 

 merely a faint tinge of fuliginous about the middle ; nervures very dis- 

 tinct and black. Legs golden-green, pubescent ; tarsi blackish. Ab- 

 domen elongate, convex, sides parallel, densely punctured, the punc- 

 tures much finer than those of the head and thorax ; base of the seg- 

 ments with a beautiful changeable blue-green reflection, the remainder 

 golden-green, the extreme basal margins of the second and third sea:- 

 ments black; apex of the third segment with four prominent equidis- 

 tant, subacute teeth, and before the apex a transverse row of deep, 

 transversely subquadrate punctures ; venter blue-green. Length 5ji 

 lines; expanse of wings $] lines. 



One specimen. Before this large and elegant species was taken out 

 of alcohol, most of the thorax, and the first and most of second abdo- 

 minal segments, had a beautiful coppery-red reflection which vanished 

 as soon as the specimen had been dried. 



7. Chrysis prasinus, n. sp. 



Green, abdomen with a beautiful blue reflection ; closely punctured; meso- 

 thorax with a central black stripe; wings nearly hyaline; apex of abdomen 

 with four obtuse teeth and a row of very deep punctures before the apex. 



