458 Records of the Indian Museum [VoL Vi 
‘> new genus.’’ ‘The species is at least provisionally referred to 
Diachlorus, as it complies more nearly with the more important 
characters of that than with those of any other genus. Between 
Diachlorus and Udenocera, Ricardo, the differences consist (1) of 
the lengthened Ist antennal joint (nearly as long as the 3rd), in 
the latter genus, and (2) in the absence (Diachlorus) or presence 
(Udenocera) of the antennal protuberance. In Diachlorus the fore 
tibiae should be curved and slightly broadened, in Udenocera they 
are not so. This latter character is of doubtful generic value 
unless quite pronounced. Such characters as the presence or 
absence of small callosities on the face, the exact point in the 
vertical height of the head at which the antennae are inserted ; 
and the comparative shape and relative size of the proboscis and 
palpi must be employed with much reserve when applied to the 
validity of genera. In profile, the head of my species consider- 
ably resembles the figure of Macquart’s Diabasis (= Dviachlorus) 
scutellata (Dipt. Exot. I.), except that the head is much shorter 
below the eyes in my species than in his, and the annulations of 
the 3rd antennal joint much less distinct. 
Haematopota albofasciatipennis, mihi, sp. nov. 
(Pl xxx, fig 7h) 
o. Western Himalayas. Long. 7 mm. 
Head.-Hyes with the upper, large facet light coffee-brown, 
the lower, smaller ones black. Frons pale grey tomentose, with a 
conspicuous velvet black spot immediately above the antennac , 
and a short narrow black line above it, Under side of head, 
comprising the face and cheeks, bluish ash grey with whitish 
hairs and numerous small black dots on the face. 
Antennal Ist joint about as long as first annulation of 3rd 
joint, oblong, slightly thickened in middle, moderately pale black- 
ish brown with a slight dusting of grey, and appearing wholly 
brownish when viewed from certain directions. The 2nd joint 
paler, very short; 3rd joint a little longer than 1st and and 
together, bare, the first annulation reddish brown, the remainder 
blackish ; the Ist and 2nd antennal joints with a little greyish hair. 
Palpi pale dirty yellowish brown, almost whitish at the tips, 
with pale pubescence. Proboscis blackish ; back of head dark grey. 
Thorax. -Dorsum dark brownish grey, the colour sometimes 
(in one example) not reaching the margin on hinder half, and with 
a trace of paleness towards the sides at the transverse suture, 
and (in one exampte) around the humeral space. In the type 
specimen the dorsum is entirely blackish grey, except slightly 
paler on the transverse suture towards the sides, but a little grey 
dust appears on the posterior margin only when viewed from 
behind. There are three indistinct but obvious very narrow 
whitish grey longitudinal stripes. Scutellum blackish grey, con- 
colorous with dorsum, with a few black hairs. 
