228 SOME NOTES ON ORIENTAL DRAGONFLIES. 
The males agree exactly with Ris’ description of the Type ex- 
cept that both have quite definite lunules on segments 4-5 of the 
abdomen, in each segment immediately in front of the transverse 
carina. This is a character which may well depend on the state 
of preservation, and even on the age of the individual; I do not 
regard it as being of much importance. Both males are in good 
condition, and appear fully mature. 
The female is distinctly larger. The post-clypeus is of a dull 
yellow colour, except immediately above the ante-clypeus, where it 
is narrowly lined with black. The synthorax resembles that of the 
yale but the yellow colouring is duller than in the other sex. The 
abdomen is marked as in the male, but the sixth segment (like the 
fourth and fifth) has a pair of lunules in front of the transverse 
carina. In this case they are very small. The cighth segment lacks 
the ventral lateral yellow marks found in the male. 
Nodal indicator 8 12 | 12 3.. Length of pterostigma, 
2.4 mm., of hind-wing +1 mm., of abdomen 47.5 mm. 
My specimens are without any yellow line on the costal nerve. 
In addition to the fore-going I have been able to examine 
specimens of J/. moorei Selys, M. cingulata Ramb. and of M. flavi- 
cincta Selys, from India. 
There remain to be noted the following species from Malaya 
of which I have not seen examples :— 
M. fumata Wruger. Front of head unicolourous, no humeral 
stripe on synthorax, no spine on dorsum of tenth segment of male. 
Described from Java, apparently related to M. mooret. 
M. gerstaeckert Wruger. Post-clypeus yellow, a humeral 
stripe on the synthorax, a spine en the tenth segment of the male, 
Java. 
M. septima Martin is from Tonkin; not sufficiently charac- 
terized. 
[ I have seen examples of the larvae of M. flavicincta Selys, 
from India; they do not appear to differ except in detail from those 
of American species, and certainly do not approach those of the 
genus Azuma (Epophthalmia) }. 
Thus one can now give the following as the list of Bornear 
species (cf. I.aidlaw Proc. Zool. Soc. Lond. 1920. p. 318) 
M. cincta Ramb. (forma). 
M. cydippe n. sp. 
M. corycia n. sp. 
M. euterpe Laidlaw 
and with some doubt, 
M. borneensis Kruger 
M, westwood Selys 
M. gerstaeckert Kruger. 
Whilst for the Malay Peninsula I can record only— 
M, westwoodi Selys and M, callisto n. sp. 
Jour. Straits Branch 
