SOME NOTES ON ORIENTAL DRAGONFLIES. 227 
occupying its basal third, 8 with small pair of basal dor- 
sal spots. 4 upper anal appendages slightly incurved 
apically, with extero-lateral tooth at commencement of 
distal third; lower appendage slightly shorter. Distal 
quarter of genital haimule abruptly narrowed, hook- 
shaped. Hind-wing ¢ 35 mm., @ +40 mm. 
M. urania Ris. 
Tonkin... 
a* 4 Post-clypeus pale yellow. Segment 2 of abdomen 
with yellow ring, narrow and not touching base of seg- 
ment dorsally, 3 with minute yellow spot dorsally on 
either side of the middle lime in front of the transverse 
carina. Upper anal appendages nearly straight, extero- 
lateral tooth at commencement of distal third. Lower 
appendage about equal in length. Genital hamule long 
and slender, almost straight. 
Hind-wing ¢ 31.5 mm., @ 34 mm. 
M. callisto n. sp. 
Malay Peninsula. 
a* 8 Post-clypeus black with sma!! vellowish spots on the 
two small depressions immediately below the frons. 
2 Post-clypeus vellow. Basal yellow ring on segments 
2 and 7, that on the second segment however is dark 
apically. That on the seventh covers a little more than 
the basal quarter of the segment. Segments 3-6 with 
paired dorsal lunules of orange-brown in the female, 
progressively smaller backwards, and minute on the sixth 
sezment; in the male segments 4-6 entirely black, but 
In specimens examined by me the lunules are present on 
4-5. Segment 8 entirely black. ¢ Upper appendages 
nearly straight. Extero-lateral tooth stout. Lower ap- 
pendage a little longer. Distal two-thirds of genital 
hamule slender, sickle-shaped. 
Hind-wing ¢ 37 mm., @ 40 mm. 
M. calliope Ris. 
Tonkin. 
a* 4 Post-clypeus yellow. Basal yellow ring on segments 
2-7, that on the second segment covering its basal half 
at least, that on the seventh about the basal third. 
Segments 3-6 with paired dorsal lunules immediately in 
front of the transverse carina, 8 with paired basal spots. 
6 Upper anal appendages nearly straight, stout extero- 
R. A. Sov., No. 85, 1922. 
