159 
tlie form of the first segment of the hind body (which 
in montanus is subvertical in front). 
I have taken this fine species in several localities on 
Oahu. It does not seem to be confined to the 
mountains. 
30. — Odynerus pacificus. 
0. pacificus, sp, nov. Parum nitidus ; punctatus; 
suhtiliter pubescens ; niger, ahdomine antice rufo, alls 
fuscis, obscure violaceis ; clypeo antice fortius emarginato ; 
abdominis segmento primo transverso antice verticali. 
Long, d ? 11 mm. 
Scarcely shining, the clypeus quite strongly emarginate. 
The head and thorax rather roughly and closely 
punctured, the punctures large, confused, and faintly 
impressed. The punctuation of the hind body 
resembles that of the preceding species. The basal 
segment of the hind body is entirely red above, but 
obscured with black beneath, the second segment is 
entirely red beneath, but on the upper surface it is 
black at the base, and (in some specimens) more or 
less obscure or blackish at the apex ; the remaining 
segments are blackish. In two of my specimens the 
apex of the clypeus is reddish. The apical joint of 
the antennae in the male is testaceous. The wings 
have scarcely any violet iridescence. This is not 
closely allied to any other species I have seen. I 
have taken it singly on Maui and Hawaii. 
31.— Odynerus rubropustulatus. 
0. rubropustulatus, sp. nov. Nitidus; punctatus; parum 
pubescens; niger, abdomine rubromacidato, alis fuscis, 
coeruleo-iridescentibus ; clypeo antice truncate ; abdominis 
segmento primo transverso antice verticali. 
Long, d 7 — 9 mm. 
Eather brightly shining, the pubescence scarcely dis- 
cernible. The head and thorax are rather strongly 
