yOTJSS ON NEW AND RARE INDIAN DRAGONFLIES. 699 
dorsal, black, thistle-shaped mark on segment 2. The latter mark connected by 
a short, narrow stalk to a narrow, black annule at the apex; segments 3 to 7 with 
broad, dorsal, black stripes connected to apical, black annules and separated from 
each other by narrow, blue, basal annules ; segment 8 all blue save for a dorsal, 
black mark shaped like a chess pawn with its apex directed basal. In the 
Masnagudi specimens this spot extends as far as the base but in the specimens 
from Avalanche it falls far short of it ; segment 9 entirely blue ; 10 Avith a dorsal, 
broad, X-like mark of black. 
Anal superior appendages very small, foliate, triangular, strongly divaricate, 
black tipped with white ; inferior appendages small, conical and white. 
Female. Abdomen 23 mm. Hindwing 15.5 mm. 
Almost exactly similar to the male and differing only by the stouter abdomen, 
by the 8th segment having an uniformly, broad, black, dorsal stripe, segment 9, 
a large, basal, triangular, black spot and the 10th all blue. The anal border of 
the latter is strongly indented and raised into a prominent hump on the dorsum 
not hoAvever cleft on top as in the Ischmira. The spine on the ventral, apical 
aspect of segment 8 is white and very robust. 
Hah. The Masnagudi specimens Avere found among sedges along the borders 
of the drinking Avater tank, whilst those from the plateau above AAere found in 
marshes. They are very conspicuous although so small, by reason of their 
bright blue colour and can be easily picked out from the more sombre coloured 
Aciagrion hisopa Avith Avhich they mix. They are smaller and more slender 
than any of the other species of the genus. 
I have seen a pair collected by Mr. Bainbrigge Fletcher at Simla, 23-5-1918, 
7,000', AA-hich apjAarently belongs to this species or is a local race. They differ 
only in haAung 8 instead of 9 postnodal nervures in the foreAving, and the mark- 
ing on the 8th segment which in the male is a plain Avedge of black taiDering 
from the apex of the segment to its base and imidented on its sides. 
From hisopa and tilhjardi the species may be distinguished by the fewer 
postnodal nervures and also by the 8th abdominal segment bearing a black 
marking (immaculate in the tAA’o species mentioned). 
3. Anaciaeschna donaldi, sp. nov. 
As the description of this ncAV species is shortly appearing in “ Indian 
Dragonflies ”, I refrain from here giving it in detail. Shortly it may be described 
as an Anacixschna of the size and bulk of Anax immaculijrons, Avith the AAungs 
deeply and uniformly enfumed from base to apices and vrith the general colouring 
of the body, dark warm brown marked with brilliant apple green. It is one of 
the largest and finest of the Indian dragonflies so far discovered. 
ilr. Bainbrigge Fletcher sent me a painting made by his Avife of this insect 
from Kodaikanal this year and from it I was able to recognise an insect which 
I had had in my possession since 1908 in which year I had taken it at Kodai. 
( The note oc the packet stated that the insect’s colours were dark broAAUi and 
bright apple green, but the colours had so faded that I was unable to make out 
any such markings, and so was reluctant to publish the species until I had more 
reliable data). A few days later I took a female of the same insect on the Ooty 
lake and a Aveek later received another female from Mr. T. Hearsey from Yercaud 
BetAveen the three of us Ave secured 6 females and saAv probably another 6 (also 
females). Both ilr. Hearsey and Mr. Fletcher believe they have seen the males 
flAung SAviftly near the lakes, but I have not been as fortunate and up to date the 
whereabouts of the male and its appearance remain a complete mystery. I 
have recently found the larvae of this insect in considerable numbers in the 
Lovedale lake, Ooty, and both Mr. Bainbrigge Fletcher and myself have found 
a number of exuvia. The venation on the wing covers of these latter has been 
very distinct and very easy to decipher. Quite a number of the exuvia and larvae 
obtained are males so their scarcity is hard to explain. Adjacent jungles have 
been searched in vain and the ponds have been visited at dusk in the hope that 
