19 17-] ^- F- LaidIvAW : Indian Dragonflies. 329 



a rectangular black mark, genae and frons as far as the level of 

 the base of the antennae greenish-yellow, the rest of the head 

 black, with a transverse yellow band from eye to eye at the level 

 of the anterior ocellus, and a fine yellow line on either side of the 

 occiput, the lower two-thirds of the eyes greenish-yellow, the upper 

 third black. 



Prothorax.—Y)oxs\im. black, the sides and under surface yellow. 



Thorax. — Black above, with greenish-yellow antehumeral 

 bands, rather narrower than those of C. eximia ; sides and under 

 surface ^^ellow with a black line on the second lateral suture. 



Abdomen reddish-brown, segments 1-6 with a terminal black 

 band, becoming broader on segment 6. Segment i with a black 

 triangle dorsally occupying its whole length (in mature females). 

 A fine black line runs along the mid-dorsal carina of the first six 

 segments, it is however scarcely evident on segments 5 and 6 of fully 

 mature females. The remaining abdominal segments are entirely 

 black, save for some traces of reddish-brown at the base of 7. 

 Superior appendages black. 



Legs yellow, the posterior surfaces of the femurs with broad 

 black line, and the posterior parts of the tibias brown, tarsi black. 



Pterostigma very dark brown, almost black. 



Calicnemis pulverulans, Selys. 



(PI. XV, fig. 3). 



Calicnemis pulverulans, Kirby, Cat. Ordonafa, p. 131 (1S90). 



cf of 9 5 Darjiling district. 



a- cf ? 2 Gopaldhara, Darjiling district (//. Stevens). 



(f Young. Head. — Lower lip yellow, upper hp black with 

 yellow margin, genae and lower two-thirds of eyes pale greenish- 

 yellow, the rest of the head black save for a narrow yellow band 

 running across the frons immediately in front of the anterior ocel- 

 lus, and a pair of narrow linear yellow marks on the occiput behind 

 the eyes. 



Prcthorax black dorsally, sides and under surface pale 3-ellow. 



Thorax black above with broad pale yellow antehumeral 

 bands ; pale yellow at the sides and below with a black line on the 

 second lateral suture. 



Abdomen yellowish-brown, paler below, the posterior seg- 

 ments becoming progressively darker, the last three being entirely 

 black. Sutures marked with a black ring, the apices of segments 

 2-6 with a very 6ne pale yellow ring, incomplete in the mid-dorsal 

 line. Anal appendages yellowish-brown, legs black, base of femurs 

 yellow, especially anteriorly. 



As the male becomes mature its colouring becomes rapidly 

 darker, 



A fully adult male has the margin of the upper lip and genae 

 still yellow ; the yellow markings on the frons and occiput are re- 

 placed by blue primrose marks. The yellow of the prothorax, and 



