510 Mr. DRharp on some new 
The species is closely allied to B. inawratus, but the 
sculpture of the thorax is less dense, that of the elytra 
finer, that of the dorsal segments less coarse and close, 
and the male has the extremity of the last dorsal plate 
less emarginate, and the angles scarcely at all promi- 
nent. 
Mr. Blackburn found this species by beating flowers at 
an elevation of about 8000 feet on Mauna Kea, Hawaii. 
Brachypeplus bidens, n. 8. 
Vix latus, parum elongatus, tenuiter pubescens, fuscus, 
pedibus, capite thoraceque testaceis, elytris metallescenti- 
bus, abdominis segmentis dorsalibus, eneo-fuscis, an- 
tennis rufo-obscuris basi dilutiore ; thorace haud fortiter 
transverso, crebre parum fortiter punctato, elytris obso- 
lete seriatim punctatis. Long. 4, lat. 1} mm. 
Head flat, distinctly, moderately coarsely punctate, 
finely pubescent, testaceous, but with a metallic tinge. 
Thorax rather large, longer than broad, truncate in front, 
the sides rounded, obscurely sinuate near the hind angles, 
which are definite and nearly rectangular, the surface is 
rather finely and evenly punctate, and delicately pube- 
scent, the colour is yellow, but on the front and middle 
it is tinged with brassy. The elytra are of a brassy 
colour and are rather convex; their sculpture is fine and 
indistinct, and their pubescence short and scanty; on 
careful examination it can be seen that there is a serial 
arrangement of the punctures. The basal segments 
are moderately closely and finely punctate. The legs 
are yellow. 
The individual described is a male, and is remarkable 
by the excision of the hind margin of the last dorsal 
plate, which is so formed that each side projects, as a 
short, distinct, acute tooth. 
The species is allied to B. proteinoides, but is much 
broader, aud the puncturation of the thorax is less dis- 
tinct; in the male of B. proteinoides, moreover, the 
apical dorsal plate is only slightly excised, and the 
teeth formed by the sides are short, obtuse, and but little 
distant. 
Found on flowers on Mauna Loa, at an elevation of 
about 4500 feet. 
