1865.] 307 



Female. — Elongate, subparallel, green changing to blue in certain 

 lights, especially on the abdomen; head and thorax clothed with rather 

 long black pubescence, deeply and very closely punctured; face not exca- 

 vated behind the antenna 1 ; eyes smaller than usual and nearly circular; 

 antennae green, blackish towards the tips; dorsal lines of the niesotho- 

 rax well impressed ; posterior angles of oietathorax prominent, divergent 

 and subacute; teguke green, minutely punctured. Wings subhyaline, 

 fiintly tinged with fuscous; nervures fuscous. Legs green, with a 

 beautiful violaceous reflection behind; femora clothed with long black 

 pubescence; tarsi more or less blackish, clothed beneath with a very 

 fine pale sericeous pile. Abdomen shining, with a beautiful blue re- 

 flection in certain lights, clothed with short black pubescence, very 

 closely punctured, the punctures rather finer than those of the head 

 and thorax; dorsal middle of the first and second segments with a cen- 

 tral, longitudinal ridge, not very well defined ; apical margin of the 

 third segment subtruncate, entire, obtusely rounded on the sides, the 

 margin flattened and slightly recurved, with a transverse row of small 

 blue punctures before the tip; venter flattened, green changing to blue. 

 Length 5 lines; expanse of wings 8 lines. 



One specimen. 



II. — Apical margin of third abdominal segment notched in the middle. 



'1. Chrysis densa, n. sp. 



Elongate, subparallel, dark green, covered with very dense deep punctures; 

 posterior angles of metathorax prominent, subacute and somewhat hookrd : 

 wings subhyaline; apical margin of abdomen notched in the middle and 

 slightly sinuate on the sides. 



Female. — Dull dark green, very densely and rather deeply punc- 

 tured, subopaque, clothed with pale pubescence, which is very short 

 and sparse on the abdomen , face excavated behind the antenna), finely 

 sculptured, and sometimes bluish; eyes rather large, ovate; antennae 

 black, basal joint green. Thorax sometimes with a deep blue tinge ; 

 dorsal lines of mesothorax not well defined; disk of metathorax slightly 

 sulcate, the posterior. angles very prominent, depressed, acute or sub- 

 acute and somewhat hooked or claw-shaped; teguhe green, finely punc- 

 tured. Wings nearly hyaline, having a faint tinge of fuscous, especially 

 in the marginal cell ; nervures fuscous. Legs green, changing to blue 

 in certain lights; tibiae and tarsi clothed beneath with a fine pale seri- 

 ceous pile ; tarsi blackish above. Abdomen covered with very dense, 

 rather fine punctures, somewhat granulate, the punctures on the basal 

 segment larger than on the other segments and nearly as coarse as 

 those on the thorax; dorsal middle, especially of the second segment, 



