BLACKBURN AND SHarp—On some New Species and Genera of Coleoptera. 187 
Allied to B. inzequalis and B. striatus. From the former it is distinguished by 
its shorter (but scarcely narrower) elytra, which together form almost a square, its 
smaller thorax less strongly rounded on the sides, and the finer punctuation of the 
hind body. Compared with B. striatus it is a more shining insect, with shorter and 
less strongly striated elytra, and much finer and more sparing punctuation of hind 
body. Its broad build and sexual characters separate it from B. bicolor and 
B. impressus, and the uneven surface of the elytra and punctuation of hind body 
from B. omalioides. 
In the male the apical dorsal segment is rather wide (as in B. ineequalis), and is 
abruptly truncate ; there is a distinct, but not elongate, supplementary segment. 
This species occurs at an elevation of about 4000 feet, on Haleakala, Maui, where it is procured by 
beating dead branches of trees. It probably represents (on Maui) B. inequalis (from Oahu), and 
B. striatus (from Hawaii). 
TB: 
Brachypeplus bicolor, n. sp.—Sat latus, nitidus, piceo-niger; pedibus, thoracis 
abdominisque lateribus, et gutta circa elytrorum suturam magna apicali, ferrugi- 
neis; prothorace transverso, lateribus sat rotundatis parum explanatis, disco tri-vel 
quadri-impresso ; elytris ineequalibus obscure striatis striis sat fortiter punctatis ; 
abdomine fortiter sat crebre punctato. Long. 34. m.m. 
Allied to B. inzequalis, but slightly smaller and narrower; the thorax is not so 
strongly transverse ; its hinder angles are less pronounced, and the margins of the 
elytra are straighter and only slightly explanate. The last named character, 
together with the dark antennz and large, well-defined, rusty blotch on the nearly 
black elytra around the hind part of the suture, will readily distinguish this insect 
from all its described allies. 
In the male the apical dorsal segment is truncate behind, leaving exposed a 
very distinct and rather elongate supplementary segment. 
The female is unknown to me. 
A single specimen was taken under the bark of a tree on Mauna Loa, Hawaii, at an elevation of 
nearly 5000 feet. 
TBs 
[I may here call attention to the existence of the following :— 
(a) An insect occurring on Kauai closely allied to B. discedens, Sh. (which I 
will call var. Kauaiensis of the same). It is probably entitled in reality to specific 
rank as representing a distinct local type, which circumstances are likely to render 
permanent or still farther differentiate ; but it will perhaps for the present be more 
conveniently regarded as a variety. It is distinguished from its near ally as 
follows:—It is smaller (long. 33-4 m.m.), the colour is brighter—the antennz 
U2 
