170 
dihidaris being evidently longer and narrower than 
in 0. affinis and stygius and their allies. The bright 
steely blue colour of the wings is a conspicuous . 
character. In the male the 6th joint of the antennee is 
distinctly but not strongly dentate, and the flattened 
or concave space on the ventral segments begins near 
the apex of the 3rd segment. 
I have met with this insect on Oahu and Maui. It 
appears to be the commonest of the Hawaiian Gmh- 
ronidce, probabty occurring on all the islands. 
43.— Crabko stygius. 
Crahro stygius, Kirby, Ent. Mo. Mag. XVII., p. 88. 
The extremely wide separation of the eyes (between 
which the forehead is scarcely concave), which is 
exaggerated to the utmost in the female, is the 
striking feature of this and the following two species. 
The eyes are rather finely facetted, the hind body 
resembles in shape that of C. affunis, Smith, and in 
the male the 6th joint of the antennse is feebly dentate. 
In this sex the character of the ventral segments is 
rather peculiar, consisting of a concavity (feeble as a 
whole) commencing at the fourth segment, but being 
deepened near the middle of each individual segment. 
In the female the penultimate dorsal segment of the 
hind body is densely punctured and set with close 
red pubescence. I think, too, that the surface of the 
segment itself is reddish. The wings are almost 
absolutely devoid of colour in both sexes. 
Oahu. 
44. — Crabor adspectans. 
C. adspectans, sp. nov. Suhnitidus; pubescens; distincte 
minus crehre punctatus ; niger, flavo ornatus, tihiis anticis 
rufo-hirsutis, alts infuscatis ; abdomine pubescentz, nitido, 
in medio lato, vix evidenter punctato. 
