378 Mr. G. J. Arrow on new 
narrow black apical bands; tergites 6 and 7 and sternite 8 
black; sternites 6 and 7 with a black mid-ventral line. 
Hypopygium yellowish, black at the tip and along the edges 
of the deep groove of the ninth sternite. Highth sternite 
simple. Ninth sternite complicated, its structure not readily 
discernible ; in the mid-ventral line it terminates in a black 
projection, backwardly directed, bifid at the tip, and deeply 
grooved beneath. Ninth tergite with a rather shallow 
V-shaped emargination. Legs: front and middle coxe 
whitish yellow, hind coxe orange-yellow. Femora slender, 
slightly enlarged at the tips, brownish, with black pubes- 
cence, which is somewhat longer on the inner and under side 
of the hind femora. Tibize blackish, with distinct white 
rings at the base. Tarsi blackish. Wings strongly brown- 
tinged, the stigma darker; a rather indistinct whitish band 
before the stigma extending from near the costa across to the 
base of the discal cell ; whitish streaks in the centres of cells 
R, M, Cu, Cug, An, and Ax. Rs very little longer than 
Ro,3, nearly straight. Cell Jf stalked, the stalk nearly a 
third as long as the cell. Cell Cu, rather long, of the same 
breadth on the wing-margin as cell Cu. Halteres blackish, 
the apical half of the knob white. 
Length of body 12 mm.; antenne 7 mm.; wing 11x 
3°38 mm. 
AssaM: Khasi Hills (purchased from KE. Heyne) ; 1 ¢. 
This species is very distinct from all others in the British 
Museum on account of the length and slenderness of the 
antennze, shown particularly in the first flagellar joint. It is 
probably closely allied to P. flavofasciata, Brun., while the 
distinct stalk to cell M, and the slender hind femora may 
indicate a distant connection with P. deta, F., and P. tapro- 
banes, Walk. 
XLIV.— Two remarkable new Ruteline Beetles from 
Indo-China. By Gitpert J. Arrow, F.Z.S., F.E.S. 
(Published by permission of the Trustees of the British Museum.) 
[Plate X.]: 
THE very remarkable group of Ruteline the males of which 
have the mandibles greatly developed, as in the stag-beetles, 
appears to have its headquarters in Indo-China, whence a 
large proportion of the known species have been brought. 
