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I.M.S., tells me he has had the same difficulty in finding more than a few isolated
specimens at Ferozepore.

   M. nigerrimus (James and Liston).—I have found rather more frequently
than M. barbriostris but never in large numbers. As already noted a specimen of
this species sent from Lahore was termed by Theobald M. minutus, and if this name
is to be used the specimens taken recently by me at Delhi and Amritsar would be
M. minutus as they agree with Theobald's description of this species. The differ-
ences, however, between M. minutus and M. vanus (Walker) are extremely small,
the only differences noted by Theobald being that the two wing spots in the first
species are white while in the second they are yellowish. Again the type speci-
men of M. nigerrimus (Giles) according to Theobald has the tips of the palpi
black, otherwise it resembles M. vanus. Size in the case of mosquitoes depends
very largely upon conditions under which the larvæ has lived and has but little
value as a specific character, also the name "minutus," though it may be ap-
propriate to the particular specimen sent home, is very out of place as applied
to the species under discussion which is noticeable among other anopheles of
the Punjab for its large size. The name M. nigerrimus (James and Liston) seems
to avoid these difficulties.¹ The M. nigerrimus (Giles) with the black tipped
palpi I have not encountered.

   M. turkhudi—Is a species not often taken and about whose habits not much
is known. I have found it in the bed of the Ghagger where this river first leaves
the foot hills (Siwaliks) for the plains, in the bed of th e Jumna at Delhi, and in large
numbers in the bed of the Beas. It seems indeed almost restricted to the beds of
rivers, for out of many thousands of larvæ obtained during February nnd March
from pools, jheels and elsewhere this species was not represented, though abundant
at this time in the river beds. It is found not only in pools but is very fond of
places where water is oozing in a layer from the sand, especially if the sand has
become covered with the growth of alga. Under such circumstances one can
understand that the larvae do not require the palmate hairs, which in this species
are rudimentary. M. turkhudi is a very large mosquito and its larvæ especially
are noticeable on account of their great size and their stoutness when full grown.

   Curiously enough this species was also found near the origin of a hill stream
at a height of between 4,000—5,000 feet near Kasauli. Finding it in this situation
I suspected that the specimens might be P. nigrifasciatus, but the scale structure
was identical with that seen in specimens of M.turkhudi from the plains.

   A. lindesayi.—I have found in large numbers in the streams about Kalka at
a height of 1,500—3,000 feet and at Pathankot. It is evidently a common hill
species.

¹ Vide the new edition of James and Liston's Anopheles of India.