161 
head and thorax are very faintly punctured, the punc- 
tures being not at all close to each other and hardly 
observable without the help of a lens. The meta- 
thorax is only slightly rugose. The pubescence is 
easily seen with a lens. The first two segments 
of the hind body are red at the sides on both the 
upper and under surfaces. The hind body is 
evidently more shining than the thorax ; its struc- 
ture and punctuation are much as in the preceding 
species. The wings of a rich bluish-purple colour. 
The apical joint of the antennse in the male is 
obscurely testaceous. 
This species is, in most respects, perplexingly close to the 
preceding. It is difficult to specify any color 
difference beyond that the mandibles are, in this, red, 
occasionally varying to reddish pitchy, while in the 
former they are black varying to pitchy ; and that 
the red markings on the hind body, though similar in 
form and distribution, are generally smaller in this 
than in the other ; the proportions of the red and 
black on the under side of the hind body vary in 
both species. The punctuation of the head and 
thorax, however, is so entirely different in the two—- 
without appearing to vary, that I must consider them 
distinct. 
Not rare on the higher mountains of Hawaii. 
83.--ODYNEKUS DIVEKSUS. 
0. diversus, sp. nov. $ suhnitidus; crasse punctatus ; 
niger, rufo-maculatus, alls hyalinis, harum nervulis et 
parte anteriori nigro-fuscis ; clypeo antice fortiter emar- 
ginato ; ahdomine dense fusco puhescente, segmente primo 
fortiter transverse antice hand verticali, secnndo vix tuber- 
culato-elevato. 
9 clypeo vix emarginato. 
Long. 12-1 4 mm» 
