NORTH AMERICAN HYMENOPTERA. 237 



Carolina, Georgia, Kentucky, Illinois, Wisconsin, Colorado, California, 

 Oregon, Washington Territory and Vancouver's Island. The variations 

 in the apical teeth are best shown by the figures ; other specimens, in- 

 cluding hella of Cresson, resemble Nortoni, while several agree with 

 Dahlbom's figure and description. The color is blue, with more or less 

 green and some purple reflections ; some specimens are deep blue with 

 much purple, others entirely emerald-green with no blue ; basin of face 

 punctured ; head and thorax densely punctured ; abdomen with the punc- 

 tures more or less separated, close on the dorsum of the second segment 

 in some specimens, in others separated. One or two specimens have a few 

 scattered finer punctures between the larger ones on first segment. The 

 lateral view of the third segment, the pits and the groove, as in nitidula. 

 Radoskovsky's figure gives an excellent idea of the species. 



Chrysis inflata n. sp.— Head and thorax emerald-green with more or less 

 deep blue reflections, closely and equally punctured; basin efface punctured; 

 abdomen emerald-green with deep blue and some dull purple on the dorsum, the 

 blue more or less broadly diffused, sometimes covering a larger part of the second 

 and third segments; abdominal punctures close and about equal; pits medium, 

 rounded, distinct, contained at the bottom of a deep declivity which forms the 

 anterior margin of the groove, and which is somewhat swelled, reaching a little 

 towards the apex and overhanging the lateral margin nearly or quite to the base 

 of the segment; teeth strong; wings hyaline, slightly infumated; 6-9 mm. q 9- 

 Southern California, Colorado and Utah ; eight specimens. In one 

 specimen the swelling above the groove is much exaggerated. 



Chrysis Bfortoni n. sp. — From deep blue with green and slight purple re- 

 flections to emerald-greeu with very little blue ; head and thorax densely and 

 equally punctured ; abdomen with the base of the second segment and sometimes 

 the third blue, or darker green ; punctures a little separated, about equally dis- 

 tributed, in some specimens close on the dorsum and others with finer punctures 

 scattered among the larger, on portions of the first segment ; pits small, subdis- 

 tinct and rounded, or sometimes somewhat confluent, contained in a medium 

 groove, which ends near the base of the segment; teeth greatly turned down; 

 wings hyaline, slightly infuscated ; 'IB -9 mm. % 9 • 



Canada, Maine, Pennsylvania, Illinois, Colorado, Montana, Washing- 

 ton Territory, Oregon ; seventeen specimens. The apical teeth vary, 

 some specimens have the outer and median teeth much farther apart than 

 the median, and vice versa. 



Chrysis peracata n. sp.— Blue and green with dull purple reflections; 

 basin of face striated ; head and thorax densely and equally punctured ; abdominal 

 punctures somewhat separated, largest on the first segment, close on the third; 

 pits medium, or a little large, distinct and close, in a shallow but distinct groove, 

 ending on each side near the base of segment; wings hyaline on the extreme 

 margin, broadly infuscated on the middle and somewhat towards the base; apical 

 margins are thin, sharp, the teeth pointed; 8-10 mm. 



