178 Records of the Indian Museum. [Vol. XVI, 



lies distinctl}" beyond the level of the second antenodal nerve, 

 the pterostigmata are a trifle more oblique and the ground-colour 

 has rather a bluish tinge. Were it not for the position of the 

 arculus I would not hesitate to regard the specimen as an ex- 

 ample of R. nursei. Some weight, however, must be allowed to 

 the position of the arculus and for the moment the position of the 

 specimen must remain doubtful. 



Genus Agriocnemis. 



No fewer than six species of this genus occur within the 

 limits of the Indian Empire, and four of them have not been 

 recognized outside its boundaiies; the other two species are widely 

 spread. 



Members of the genus are the smallest of existing dragouflies, 

 rivalled in India in this respect by Enallagnia (?) parvum. Selys, 

 only. As in the case of Ischnura some species have dimorphic 

 females. The genus is divisible into groups most easily charac- 

 terized, unfortunately, by sexual characters of the males. 



A. Upper lip metallic in colour; females dimor- 



phic, upper pair of anal appendages of male 

 longer than lower pair ... . . A. pygmaea 



(Kamb.). 

 Upper pair of anal appendages of male 

 shorter than lower pair ... ... A. iiicisa, Selys. 



B. Upper lip not metallic. 



1. Upper anal appendages of male pro- 



vided with a downwardly directed 

 spur. ' 

 Females not dimorphic ? 



Uegs white, segments 8-10 of ab- 

 domen white ... ...A. lacteola, Selys. 



Legs marked with blsck, segments 



S-io pale blue ... ... A. pieris, sp. nov. 



(Formosan species) ... ... (/i. seleiiion, Ris.) 



Females unknown ... ... A. nana, Laidlaw. 



2. Upper anal appendage of male not 



pro\'ided with spur . . ...A. splendid issima, 



sp. nov. 



As in Ischnura the pterostigmata of the fore- wing of the male 

 differ in colour from those of the hind-wing ; but in this case they 

 are similar in shape. 



Agriocnemis lacteola, Selys. 



A. lacteola, Kirby, Cat. Odoiuita, p. 158 (iSco); Laidlaw, Rec. Ind. 



Miis., VIIL pp- 347. 348, (1914)- 

 ^ S (S ' Kierpur, Purneah district, Bihar, 7-ix-i5 (C. Paiva). 860/H.i. 



These two specimens ore not quite identical with the type as 

 described by de vSelys. 



In the first place the post-ocular spots are distinctly joined to 

 the transverse lines on the occiput. Secondly there is no white 

 spot on the prothorax ; and lastly the femora are entirely without 

 black bands (see fig.). 



' See figure of A. nana, Rec. Ind. Mus., VIIL pl.xvi, fig. 10. 



