INDIAN DRAGONFLIES. 513 



45. Neurothemis fluctuans, Hagen. 



Lihellula fluctuans, Fabricius. 

 Polyneura elegans, Rambur. 

 Polyneura apicalis, Brauer. 

 Neurothemis ceylanica, Brauer. 

 Neurothemis nicobarica, Brauer. 

 Neurothemis palliata, Hagen. 



Expanse 50 mm. Length 32 mm. 

 Male and female very similar. 



Head : front reddish ; epistome, labrum and labium yellow. 

 Prothorax dark reddish brown. 



Thorax reddish brown, dark olivaceous on the dorsum and a paler russet 

 green at the sides and beneath. 

 Abdomen ferruguious with obscure, blackish, subdorsal spots. 

 Wings moderately broad and long ; in the male, the basal marking, which is 

 of a golden brown or black colour with reddish reticulation, usually extending 

 as far out as the stigma but subject to a little variation of 2 or 3 cells more 

 proximal or distal ; in the forewing, the border of this marking a little convex, 

 in the hind, sloping strongly towards the base so that it reaches the termen 

 at a point somewhere between the terminal end of the 6th nervure and tornus. 

 Secondary reticulation not a marked feature, the trigone in the forewing having 

 about 5 or 6 cells and the hypertrigone 5 to 8. In the female the colour of the 

 wings varying considerably ; either hyaline or tinted dull yellow, the basal 

 marMng in the hindwing usually small, not extending as far out as the trigone 

 and its border vignetted off. The apices of the wings touched variably with 

 brown, this colour occasionally extending as far as the middle of the stigma 

 and having a sharply defined border. In other female specimens, the basal 

 marking is better defined and is of a clear yellow or yellow with dark, dijEfuse 

 clouding at its outer border or it may be a dull broWn without any rays at the 

 base. Stigma moderately large, dark brown. 



Hab. Malaysia, Straits, Nicobars, Ceylon and Low'er Burma. 



46. Neurothemis terminata, Eis., 1911. 



Neurothemis fluctuans, Brauer. 

 Neurothemis fluctuans, race apicalis, Selys. 

 Neurothemis stigmatizans, Laidlaw. 



Expanse 62 mm. Length 40 mm. 



Larger insects than the two last and rather darker in colour ; markings if 

 any, rather obscure. 



Head, thorax and abdomen a golden brown. 



Wings broad and long ; in the male, the basal marking extending variably 

 outwards to as far as the stigma or rather wider, its border without indentation 

 and running straight back to the termen, which it reaches a little distal to the 

 end of the 5th nervure. Secondary reticulation rather more developed than 

 in the foregoing two species and reddish m colour. Trigone in the forewing 

 with 6 to 7 cells, in the hypertrigone some 3 or more cells, subtrigone in the 

 same wing with 12 to 24 cells ; stigma dark brown, rather more than 4 mm. 

 In the female, reticulation more open, the markings varying widely but usually 

 the wings a bright yeUow with poorly defined darker marks at the membrane 

 and brown tips to the extreme distal ends of the wings, this latter marking 

 not usually extending in beyond the distal end of the stigma. In isochromatic 

 females, which are less common, the wings are yellowish with a diffuse, brown 

 clouding at the node, reaching as far out as the proximal end of the stigma. 



Hab. Ceylon and the Nicobars. 



