155 
punctate. The second segment is rather strongly- 
elevated into a tubercular shape; it is very finely 
and sparingly punctate to near the hind margin, 
where the punctuation becomes coarse. The next 
three segments are coarsely punctate. The apical 
joint of the antennae in the male is testaceous. The 
wings are of a bright violet colour. 
The general resemblance of this insect is to the preceding 
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 duhiosus, Sm. 
(which has a faint development of the tubercular 
form of the second segment of the hind body) by its 
considerably stronger and closer punctuations, and by 
the much less vertical front of the basal segment of 
the hind body ; from 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. Lin. Soc. XIV., p. 680. 
Honolulu — not rare. 
25. — Odynerus dubiosus. 
Odynerus duhiosus, Smith, l,c. p. 681. 
Honolulu. 
26. — Odynerus rubritinctus. 
Odynerus ruhritinctus. Smith, Proc. Lin. Soc. XIV., p. 679. 
Not uncommon on Kauai. 
27. — Odynerus blackburni. 
Odynerus hlackhurni, Kirby, Ent. Mont. Mag., XVII.‘ 
p. 87. 
