260 
Mr. C. J. Gahan on Longicorn Coleoptera. 
inner apical termination. The antennae in the female are as 
long as or a little longer than the body, with the third to tenth 
joints smooth and pubescent and with the fifth to tenth joints 
denticulately produced, as in the male. Prothorax irregularly 
transversely wrinkled above, thickly pubescent, with the ante- 4 
rior and posterior borders somewhat blackish ; armed at the 
middle of each side with a strong, sharp, and slightly recurved 
spine. Elytra with a close fulvous-grey pubescence, with 
usually the sutural line and the extreme lateral margins black ; 
very closely and regularly punctulate throughout ; apices 
truncate, with the angles briefly spinose. 
From pedestris this species can be readily distinguished 
not only by its size, colour, and dense pubescence, but more 
especially by the strong sharp spine with which each side of 
the prothorax is armed ; the rugce of the pronotum also are 
more numerous and more wavy in appearance. 
Massicus Frgij sp. n. 
Pube brevi fulvo-grisea sat dense obtectus ; capite supra inter oculos 
sulco brevi longitudinali ; antennis ( 3 ) corpore duplo longiori- 
bus, scapo transversim rugoso et ad apicem intus subangulato, 
articulis tertio quartoque incrassatis ; prothorace lateraliter in 
medio valde rotundato, supra irregulariter corrugate, antice et 
postice transversim suleato ; elytris subelongatis, pube pallidiore 
subcinerea, sub humeris subglabris, fuscis, apicibus truncatis, 
angulis suturalibus brevi ter spinosis ; processu prostern i postice 
valde prominente et utrinque leviter tuberculato. 
Long. 50, lat. 12| mm. 
Hob . Borneo. In the collection of Mr. Fry. 
Amongst known species ( Gerambyx ) venustus, Pasc., seems 
most nearly allied to the present one. Though appearing to 
be congeneric, the differences between the two species are 
well marked. In venustus ( $ ) the scape of the antennae is 
not angulate at the apex, but carries there a cicatrice limited 
by a short and not very sharp carina ; the third joint is a 
little longer than the scape or fourth joint; the fifth to eighth 
joints each bear a small spine at their outer apical termina- 
tion. The prothorax is only slightly rounded at the sides, 
and above it is almost regularly transversely wrinkled. In 
the present species the scape is slightly angulate at the apex 
on the inner and inferior face, carries no distinct carina, and 
is subequal in length to the third joint, the latter not being 
longer than the fourth; not one of the joints of the antennae is 
spinose at the apex on the outer side, though the joints from 
the sixth to the tenth are, as in venustus , denticulately pro- 
