SOME NOTES ON ORIENTAL DRAGONFLIES. 223 
With this male J think it probable that the ¢ from Banka 
referred to J/. westwood by de Selys, and the specimens recorded 
from Sumatra under the same name, are conspecific. 
Wings distinctly smoky eyes alley at the apices. Pterostigma 
2 mm. long. Nodal indicator , +2|+2 7%. Anal angle not acute. 
Margin between membranule and angle slightly concave. 
The lateral yellow band of the synthorax is pale cream-yellow 
in colour and sharply defined. The yellow ring on the seventh 
segment of the abdomen occupies the hasal fifth of the segment. 
The lower anal appendage has a length of 2.8mm. The upper 
pair are decidedly shorter, being barely 2 mm. long. Each has a 
well-dey aa extero-lateral tooth just before its middle, and the 
apex of each is recurved. 
The genital lobe of the second segment is small, and the geni- 
tal hamule is small and nearly straight, not unlike that figured by 
Ris for MW. terpsichore Forster, though relatively smaller. 
Length of abdomen 42.5 mm. + 2.8 mm. 
2 unknown. 
Type in British Museum ex coll. Raffles Museum, Singapore. 
Macromia euterpe Laidlaw. 
ee eae Laidlaw (Proc. Zool. Soc. London 1915, pp. 26-29. 
Text-figs. 1, 2.) This species has the anal angle rounded, and 
margin of the wing between the membranule and the angle deeply 
concave as in MW. w restwoodi, i in the male. 
The dorsum of the second segment is also much more densely 
covered with hairs than in the two species of the group already 
noticed. The pterostigma is about 1.75 mm.* The genital lobe 
is very small, and the hamule is short stout and well curved. 
Ny 7 1eqt 2 LAM COS lino ake 
Nodal indicator eho yee 
T have before me the paratvpe ¢ from Mt. Kinabalu. 
Two other species appear to fall into this group, viz, M. ter- 
psichore Forster and M. melpomene Ris. Both are from N. Guinea, 
(See Ris in Nova Guinea 1X, Zool. 3, pp. 494-497, figs. 13-17. 
and idem, Nova Guinea XII Zool. 2. pp. 84-85, figs. 2-3.) 
Both these species differ from the more western members of 
the group in having the pterostigma exceedingly small, only 1. mm. 
long. 
Macromia cincta Ramb. (7 local race) (Fig. 4). 
I-¢. Sarawak, Borneo. Coll. J. C. Moulton. 
The specimen agrees in the main with de Selys’ account of 
this species. I have not been able to see Rambur’s original descrip- 
*Not 2.5 mm. as originally stated ( Laidlaw loc. cit.) 
R. A. Soc., No. 85, 1922. 
