128 
O. Kröber; 
apex downwards, the base incurved. Antennae dark reddish brown ; 
tips of first and second joints a little pale below, second joint mi- 
nutely pubescent. Proboscis light shining brown, about twice the 
length of the head, tip shining black. Eyes bright chestnut brown, 
posterior margins silvery white tomentose. Back of head brown, 
livid towards vertex. — Thorax. Wholly dull black, humeral calli 
and sides of thorax with a very little whitish dust. Scutellum and 
metanotum dark brown. — Abdomen. Dark brown, lighter on 
second and base of thirdsegment, these parts being much contract- 
ed; third, fourth and fifth segments with a moderately wide 
golden-dusted posteriot border; sixth segmerit gold dusted on 
dorsum. Genital apparatus somewhat withdrawn ; consisting of an 
upper curved plate, a pair of claspers (apparently), and a narrow 
Intermediate organ, all dark brown, shining and bare. Whole 
abdomeii bearing minute black hairs. — Legs. Coxae black, silvery 
white dusted. Femora reddish brown, hind pair somewhat thickened 
on basal half, apical half darker. Tibiae reddish brown, with silvery 
white dust; fore pair darker, posterior pairs attenuated towards 
base; hind pair lighter in colour on basal half. Tarsi dark brown. 
All the legs microscopically pubescerit. — Wings almost clear. 
A blackish colour from (on the costa) the base as far as just beyond 
tip of second longitudinal vein; this colour extending posteriorly 
as far as the third longitudinal vein where it sharply terminates 
but is continued into the basal half of the first posterior cell, the 
outer edge of the coloured part being perpendicular but without 
a clear-cut limit. The first posterior cell closed some distance 
before border. Anterior cross- vein just beyond centre of discal 
cell, which is just half as wide at base as at distal end. Kälteres 
blackish. Length 8 mm. 
Described from a single ? in good condition in the Ind. Mus. 
from Margherita, Assam. 
NB. I retain the specific name under which Bigot left it,but 
it seems inappropriate.*' 
15. Physocephala sepulchralis Brun., 1. c., p. 498. 
,,Head. All black, except the face and underside of the 
head, which are bright chrome-yellow, the colour sharply delineated 
in a line across the base of the antennae. The extreme underside 
of the head, below the eyes, the mouth and the proboscis are black ; 
the latter extending rarely beyond the epistoma. Antennae all 
black; second joint two and a half times as long as the first; third 
elongate, with a two-jointed style, the first joint cupshaped, the 
second pointed; the third antennal joint with its style about two- 
thirds as long as the second joint. Seen from in front and below, 
the third joint is a little greyish on the inner side. A very dull 
dirty luteus yellow subtubercular oval piece on the vertex, most 
obvious from behind. — Thorax. With scutellum, metanotum and 
sides wholly black. — Abdomen wholly black, first segment with 
