160 
and closely punctured (but gradually less closely 
backwards), the meta thorax is not very rugose. 
There is a red spot (absent in some specimens) behind 
the base of the antennae. The sides (broadly) and 
the apical margin (narrowly) of the basal segment of 
the hind body are red, its under surface is red, 
more or less clouded with fuscous or black. The 
second segment is red, except an abbreviatad central 
line on the underside, and so much of the upper surface 
that the red appears as a rounded patch on either 
side, not extending to the base or apex. The re- 
maining segments are black. The apical joint of the 
antennm in the male is testaceous. The basal segment 
of the hind body is extremely strongly punctured, 
the punctures being rather elongate; the punctuation 
of the remaining segments does not differ much from 
that in the preceding two species. The legs are of 
an obscure colour with fuscous pubescence. 
This insect occurs on the higher mountains of Hawaii, at 
elevations 5000 — 7000 feet above the sea. 
N. B. — I regard as probably the female of this species 
some individuals of that sex taken in the same 
locality, which differ in being larger (long. 10 — 11 
mm.), in having the wings of a rich blue (rather than 
violet) colour, and the upper surface of the basal 
segment of the hind body more broadly red at the 
sides. 
32 . — Odynerus obscqre-punctatis. 
O. obscure punctatus, sp. nov. Suhopacus ; suhtiliter 
puhescens ; niger, manclihulis rufis, ahdomine rufo-macu- 
lato, alis coeruleo-iridiscentihus ; clypeo vix emarginato ; 
capite thoraceque vix punctatis ; ahdomine punctato minus 
opaco, segmento primo transverso antice verticali. 
Long. ^ 8 — 12mm. 9 12mm. 
Less shining than the preceding, which it resembles. The 
