222 SOME NOTES ON ORIENTAL DRAGONFLIES. 
lateral tooth, just beyond the middle of each, genital 
hamule slender, straighter than in the last species but 
otherwise rather similar. 
Hind-wing ¢ 89 mm. 
M. fraenata Martin (?) 
Khasi Hills, Tonkin (Corea?) 
In addition Dr. Ris allots to this group two other species, 
J. clio Ris, from Formosa, a large, very distinct species (Q h. w. 
+7 min.) known only from the female sex, characterized by the 
possession of large basal yellow markings on segments 3-6 extend- 
ing to the transverse carina; and JI. Ean Selys, a large 
species from Japan (é h. w. 45 mm). 
Macromia westwoodi Selys (Fig. 1.) 
1 g.Maxwells’s Hill, Perak. (Raffles Museum, Singapore). 
The specimen unfortunately lacks the head. I feel sure that 
it is the true male of this species, and that the sex has not hitherto 
been described, the mates attributed to it by de Selvs and Kruger 
belonging in my opinion rather to the next species or an allied 
form. ‘The present specimen shows much less discrepancy in size 
with the type female as far as de Selys’ measurements go, ‘and the 
locality is of course a likely one. 
Wings colourless, save for a slight tinge of yellow near the 
anal angle. This latter is rather rounded, and the anal margin of 
the wing between the membranule and the angle itself is deeply 
concave. SOs. nerve marked with yellow. Nodal indicator 
+? 35+ 1 48 21 Pterostigma 2.5 mm. 
The yellow mark on the base of segment 7 of the abdomen 
occupies its basal quarter. 
The sides of the first and second segments are brown in colour 
shading gradually into the metallic green of the dorsum. The 
dorsal process on segment 10 is small and lies near the base of the 
segment. 
The extero-lateral tooth of the upper anal appendage is much 
reduced. 
The genital lobe of the second segment carries a stiff brush- 
hke bunch of hairs, directed forward, at the apex. The genital 
hamule is short, not extending to the apex of the lobe, and is 
comparatively broad. 
Length of abdomen ¢ 45 mm+2.75 mm. (2 50 mm. Selys). 
Macromia cydippe n. sp. (Figs. 2-3). 
1 Lio Matu, Sarawak, Borneo, Oct. 1920. (bolls C. Moulton) 
The specimen is the Type. 
Jour. Straits Branch 
