200 
[February, 
pedibus piceis plus minusve rufescentibus, rostro l a to, r ugoso-punctato ; antennis 
robustis, rostro capite prothoraceque conjunctis paulo brevioribus, funiculi 
articulo secundo primo paulo longiore ; prothorace fortiter transverso, antice 
fortiter angustato, parce nec fortiter punctato ; elytris haud striatis, seriatim 
fortiter nec crebre punctatis, interstitiis parce subtilius punctatis ; subtus 
abdominis parte anteriori minus fortiter punctata. Long. 4f — 5f mm. 
In bark ; near the crater “ Kilauea,” on Mauna Loa, Hawaii. 
The other described species whose elytra are not distinctly striated 
are either of elongate form, or having the elytra of the peculiar build 
which I have called “ bisinuate nivicola, the striation of whose elytra 
is obscure m one sex, has totally different antennae. 
(). 81TBSTRICTUM, sp. 710V. 
Ora turn, nitidum, nigro-ceneum ad viridem accedens, antennis rufo-testaceis, 
pedibus pic eis plus minusve rufescentibus ; rostro fortiter punctato 7 'ugatoque ; 
antennis rostro cap/fe prothoraceque conjunctis paulo brevioribus , funiculi 
art iculis primo et secundo elongatis, hoc it lo paulo longiore ; prothorace trans- 
verso antice angustato, parcius nec fortiter punctato ; elytris a latere fortiter 
bisinuatis, confuse punctatis, aliquot punch s {qua mujora sunt cceteris) seriatim 
dispositis ; subtus abdominis parte anteriori parce fortiter punctata. 
Long. 41 — mm. 
Various localities on Haleakala, Maui, up to 4000 feet, but not 
taken commonly. 
1 have had specimens of this insect for some time past separated 
from the other species of the genus, and some doubtfully placed with 
O. obscurus. the addition and examination of fresh specimens this 
year have, however, led me to regard them all as appertaining to a single 
somewhat variable species, some examples of which are narrower and 
more elongate than others, while in some examples the punctuation 
(especially on the under-side) tends to become extremely confused, and 
even obscure. The distinctive features of the species appear to be, 
rather long, stoutish antennae, with the basal two joints of the funiculus 
elongate, the 2nd markedly more so than the 1st, and elytra con- 
tracted about the middle, so that their outline is of two distinct curves. 
It is allied to obscurum , but differs by its average superior size 
strongly sculptured rostrum, non-striate elytra, &c. 
Of this, and the preceding species, I have examples in wdiich the 
rows of punctures run into obscure striae near the apex, according to 
a (probably sexual) peculiarity of the genus, previously referred to 
by me. 
