HYMENOPTERA OF THE HAWAIIAN ISLANDS. 215 



antennse in the male is testaceous. The wings are of a 

 bright violet colour. 



The general resemblance of this insect is to tbe pre- 

 ceding species, from which it differs in being much more 

 shining and much more strongly punctate, as well as in 

 the shape of the first segment of the hind body &c. &c. 

 From 0. congruus, Sm., it differs in the shape of the second 

 segment of the hind body, the punctuation of the head, 

 &c. ; from 0. dubiosus, Sm. (which has a faint development 

 of the tubercular form of the second segment of the hind 

 body), by its considerably stronger and closer punctua- 

 tion, and by the much less vertical front of the basal 

 segment of the hind body ; from 0. maurus, Sm., by the 

 much less crowded punctuation of the head and thorax. 



I have taken this insect occasionally on Haleakala, 

 Maui, always at a considerable elevation (4000-6000 feet 

 above the sea) . 



24. Odynerus congruus. 



Odynerus congruus, Smith, Proc. Linn. Soc. xiv. p. 680. 



Hab. Honolulu : not rare. 



25. Odynerus dubiosus. 



Odynerus dubiosus, Smith, I. c. p. 68 1. 



Hab. Honolulu. 



26. Odynerus rubritinctus . 



Odynerus rubriiinctus, Smith, Proc. Linn. Soc. xiv. p. 679. 



Not uncommon on Kauai. 



27. Odynerus Blackburni. 



Odynerus Blackburni, Kirby, Ent. Month. Mag. xvii. . 87 



A succession of accidents have resulted in the publica- 



