IQI5. | F. F. Larriaw: Oriental Dragonflies. 199 
The wing of the male is colourless and is very like that of 
the male O. atkinsoni, broadly speaking. 
The anal appendages differ markedly in detail from those of 
the allied species. . The upper pair are stout, a trifle shorter than 
the lower appendage, and are curved inwards towards each 
other; bifid at the extremity, and with a very small ventro- 
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1G. 2a.—Profile of anal appendages of O. speciosus ¢. 
2b.—lL.ower anal appendage of O. spectosus ¢, viewed from 
below. 
internal tubercle on each just beyond its middle and scarcely 
visible in profile. 
The lower appendage likewise is stout; its two limbs each 
catry a projection directed straight upwards. his terminates in a 
doubly toothed point. Beyond the projection each limb ends in a 
pointed, backwardly directed spur. When looked at from below 
the lower appendage appears as ending in a pair of triangular 
processes not divaricated from each other. 
