454 Records oj the Indian Museum. [Vol. XVI, 



and presenting a narrow, shallow notch on the dorsum, posteriorly, 

 which is blue. 



Anal appendages. Superior shorter than the loth segment and 

 also than the inferior, slightly bifurcate in profile ; inferior nearly as 

 long as the loth segment, broad at the base and narrowing rapidly 

 to form a robust hook which is curved strongly down and inwards. 



Female. 



Very similar to the male, but the blue markings on the abdo- 

 men much less extensive. Head, prothorax and thorax scarcely 

 differing from that of the male. 



Abdomen. The oblique, black marking on the ist segment 

 covers the basal half of the dorsum ; the triangular, black marking 

 on the dorsum of the 2nd segment extends forwards as far as the 

 base and encloses between itself and the lateral marking a blue, 

 hook-shaped marking ; the 3rd to 6th segments are black and each 

 has a sharply-defined streak and dot on the sides, resembling a 

 note of exclamation ; the 7th may or may not have a faint indi- 

 cation of a similar marking; 8th segment black, with an apical, 

 blue annule, confluent laterally with a largish, blue spot; 9th 

 blue, marked basally with a black spot shaped like a coronet, and 

 in some with a fine, dorsal, triangular, apical, black spot ; loth 

 segment entirely blue. 



Anal appendages very small, black. 



Wings as for genus ; postnodals 14 ; stigma black, covering one 

 cell ; length of hind-wing 22 mm. Length of abdomen 32 mm. 



The position of the arc and the shape of the anal appendages 

 suggest Ceriagrion but there is no ridge on the frons and the colour 

 scheme is totally unlike anything seen in that genus, in fact I 

 know of no parallel to the clear-cut, cameo-like effect of the 

 markings in this beautiful insect, at least not in the subfamily 

 Agrioninae. 



Genus Agriocnemis. 

 Agriocnemis d'abreui, sp. nov. 



i $ , lyamta, Balaghat Dist., Central Provinces, India, 1,300 

 ft., 23-3-18. [E. A.D'Ahreu.) 



Head black, marked with sky-blue, post-ocular spots and a 

 blue streak across the vertex in front of the anterior ocellus ; 

 labium blue, the base narrowly black; anteclypeus blue, traversed 

 by a fine, black line with a pointed projection at its middle, 

 directed forward ; eyes deep olive green above, paler beneath. 



Prothorax black, with two small, blue, subdorsal spots in front. 



Thorax sky-blue, the dorsum and a broad, black, humeral 

 fascia black ; the tergum spotted with blue. 



Legs pale blue, streaked with black on the extensor surfaces. 



Abdomen blue, marked with black as follows : — the dorsum 

 broadly black throughout its whole length, the black on each 

 segment from 2 to 7 expanding at the apical end and then con- 

 tracting again to join an apical black ring; black, lateral streaks 



