226 SOME NOTES ON ORIENTAL DRAGONFLIES. 
Kruger’s account of his species gerstaeckert is sufficiently 
definite in this respect. He says of the tenth segment of the ab- 
domen that it is “vorn abgeschragt.und zeimlich tref gefurcht, 
der Riichen erhebt sich nach hinten zu einem stumpfen Hocker.” 
It is certain that this description cannot apply to M. calhisto, 
and as I believe the character to »e of importance I feel justified, 
after having had an opportunity of making a fresh study of my 
specimen, in giving it a namie. « It differs also a little in size being 
distinctly smaller than gerstaeckert; it is im fact the smallest of the 
Oriental species of the genus. Other differences are noted below. 
é (specimen rather immature) wings slightly and evenly 
tinged with brown. Pterostigma 1.75 mm. brown. Costal nerve 
black. Nodal indicator 3 + ls 14 8, The number of post-nodals 
in the hind-wings is smaller relatively to the number of ante- 
nodals than in the case of any of the other species I have examined. 
The anal angle is not very acute, and the anal margin of the wing, 
between the grey membranule and the anal angle, is straiget. 
(VV. gerstaeckeri: “ Der Analrand der Hinterfliigel ist zwischen der 
weislichen Membranula und der Analecke dadurch wusgebuchtet, 
daos die Randader des 2-zelligen Analdrevechs hier wellig vor- 
springt.” ) 
Abdomen dark brown (probably black in mature examples, and 
may have some metallic iustre). The second segment has a ring 
of yellow, not reaching its proximal border. The third has two 
minute spots on either side of the mid-dorsal line immediately in 
front of the transverse carina. 
Segment 7 has a basal yellow ring, occupying the proximal 
fitth of the segment. 
Colouring of MM. gerstaeckert similar but the mark on the 
second segment is broken into dorsal and lateral parts, and there 
is a basal lateral mark on the eighth segment. 
Macromia fraenata Martin (?) (Fig. 7.) 
18 Khasi Hills (purchased, no other data). In my collection. 
Identity doubtful. Agrees fairly well with Martin’s descrip- 
tion so far as colouring goes, but not with his coloured figure, 
which again is not altogether i in agreement with his account of the 
species. I*urther the anal appendages are unlike those figured in 
certain respects. But as his figure here also does not altogether 
fit his description, J think it wise to refer the specimen here pro- 
visionally, noting further a wide difference in habitat. Sraenata 
is recorded from Tonkin and Corea, but I cannot help thinking the 
latter locality unlikely. 
Wings slightly tinged with yellow brown at he extreme bases. 
Pterostigma 2mm. Nodal indicator 8, +5 | 45 8 Costal nerve 
with brownish-yellow line. 
Jour. Straits Branch 
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