174 [January 



with a large, subquadrate, depressed, transversely striated space en- 

 closed by a sharply-defined carina; tegulaa fuscous. Wings hyaline, 

 very faintly tinged with pale fuscous, especially on the apical margins ; 

 nervures fuscous. Legs piceous. clothed with pale ochraceous pube- 

 scence, longer and more dense on the posterior pair. Abdomen ovate, 

 very minutely punctured, shining, bright green, more or less tinged 

 with blue, the base, sides and apex clothed with pale pubescence; when 

 viewed in certain lights, the disk of some of the segments have a trans- 

 verse band of a deep violet hue; apical segment densely clothed above 

 with fuscous pubescence; venter green, pubescent. Length 4| lines; 

 expanse of wings 71 lines. 



Collection. — Ent. Soc. Philad. One specimen. 



Not being quite sure that this species is correctly referred, I give a. 

 more detailed description of it, 



Genus NOMIA. Latr. 

 Nomia Robinsoni. n. sp. 



Black; head and thorax clothed with ochraceous pubescence ; antennae be- 

 neath and the legs rufo-testaceous ; wings subhyaline ; abdomen with three or 

 four beautiful green or golden-green bands. 



Female. — Black ; head rather densely clothed with sh jrt pale pube- 

 scence; face broad and flat, deeply and rather closely punctured; an- 

 tennae piceous-black, the flagellum beneath brownish. Thorax closely 

 and rather finely punctured ; mesothorax clothed with short fuscous 

 pubescence, anterior margin with a line of short, dense, pale ochraceous 

 pubescence extending on each side to the base of the wings and cover- 

 ing the tubercles; pleura thinly clothed with pale pubescence, the post- 

 scutellum with short, very dense, pale ochraceous pubescence; meta- 

 thorax finely punctured, the posterior face concave and the sides with 

 a patch of rather long pale pubescence ; tegulse piceous. Wings hya- 

 line, the apical margins broadly pale fuscous ; nervures pale ferrugi- 

 nous. Legs piceous. densely clothed with short pale pubescence; pos- 

 terior tibia) and tarsi pale testaceous, densely pubescent. Abdomen 

 ovate, black, somewhat shining, very delicately punctured; the base, 

 sides, and lateral apical margins of the first segment fringed with pale 

 pubescence ; apical margins of all the segments depressed and impunc- 

 tured, those of the second, third and fourth segments pale emerald- 

 green, with a beautiful golden-yellow reflection ; apex rather densely 

 clothed with pale pubescence; venter piceous, densely pubescent. 

 Length b% lines ; expanse of wings 9 lines. 



Male. — Black; face densely clothed with short, ochraceous pube- 

 scence; antennae longer than the head and thorax, gradually attenuated 



