1920.] F. F. LAIDI.AW : Indian Dragonflies. 151 



specimens there is a distinct darkening of the mesepisternite near 

 the mid-dorsal carina, where the colouring is of a more olive hue 

 (this is more obvious in old pinned specimens than in spirit 

 material). 



Legs yellowish-white, with black spines and tarsal claws. The 

 first pair of femora and tibiae have each a fine black externo-lateral 

 line, of which only a trace is visible on the second pair of femora, 

 none on the third pair. 



Abdomen: Segments t-8 sandy yellow, a slightly olive tinge 

 dorsally, paler beneath. Except for the first segment, which is 

 rather paler than the rest, the mid-dorsal line of each of these 

 segments is marked with a very fine blackish line, and the basal 

 and apical margins of each segment are also very narrowly marked 

 with dark brown. On each segment from 2 to 7 the apex for a 

 length of about a millimetre is a little paler than the rest, and 

 lacks the olive shade; this paler area is separated from the 

 remainder of the segment by a pair of minute, transverse, black 

 dots lying on either side of the mid-dorsal carina, but not touch- 

 ing it. On segment 8 the mid-dorsal line is widened, and the 

 sub-apical spots can scarcely be distinguished ; 9-10 show progres- 

 sive paling of colour distally, the apex of 10 and the anal appen- 

 dages being of a creamy white colour. These segments are each 

 marked with a fairly broad, black line dorsally. 



Anal appendages : Upper part longer than segment 10 of 

 abdomen, regularly incurved apically, with four or five fine black 

 external denticles. Inwardly each carries a fairly stout spur, 

 followed by a rounded shelf-like projection, lower pair barely 

 one-half length of upper pair, triangular. The upper pair are a little 

 darkened on the apices (see pi. V, fig. i). The veins of the wings 

 are brown in both sexes. 



4. Lcstes nodalis, Selys. f 

 (PI. V, fig. 2). 



Lestes nodalis, Selys, "Odonates de Birmanie." Ann. Mus. Civ. Genova 



X (XXX), pp. 496-497 (1890-91). 

 I & (Head, thorax and parts of wings only). Assam-Bhutan 

 Frontier. " Deshroi, River and jungle" (5. W. Kemp) 25-xii-lo. 



c 43.3 



20 * 



In addition to the points noted by Selys as serving to charac- 

 terize this species, the black nodal point and the longitudinally 

 bicoloured pterostigma, the sharp deflexion of the wing margin 

 beyond the pterostigma is worth noting. 



I am able to supply a figure of the anal appendages of the 

 male (missing in the present specimen) from an example in the 

 British Museum from Assam. De Selys {loc. cit.) has recorded a 

 specimen from Yunnan. 



