IQIQ-] F- F- Laidlaw : Indian Dragon/lies. 177 



/. rufosiigiiia and /. annandalei are obviously very closely 

 allied to each other, and form a small section of the genus 

 characterized by the orange abdomen of the males and the com- 

 plete absence of any blue marking. 



Types, cf 9 , will be returned to the Indian Museum. 



Genus Rhodischnura, nov. 



Venation that characteristic of Ischnura. Abdomen of male 

 shorter and stouter relative to the size of the insect than that of a 

 typical Ischnura. Adult male without post-ocular spots ; apex 

 of tenth abdominal segment of male widely excavated dorsally, the 

 excavation bounded on either side by a small tubercle, Tj'pe, — 

 Rhodischnura nnrsci, Morton. 



The single species contained in this new genus is so distinct 

 from other Ischnuras that, admitting the disadvantages of de- 

 fining a genus on sex characters, I feel justified in emphasizing this 

 distinctness by the erection of a new genus for the species. 



The male must be a strikingly beautiful insect, with its 

 abdomen coloured rich red, lemon yellow and violet black. 



The specimens I have seen were taken by Dr. Hankin at Agra. 



Rhodischnura nursei (Morton). 



Isclinural nursei, Morton, Trans, hut. Soc. Loud., 1907, pp. 306-307, 

 pi. xxiv, figs. 4, 5, 6. 



Female. 



Head. — Upper lip white, as is the ante-clypeus. Post-clypeus 

 bronze black. Frons white, with a shght reddish tinge, to beyond 

 the level of the base of the antennae; the three basal joints of 

 these marked with brownish-white in front. A pair of small blue 

 post-ocular spots project into the black transverse band run- 

 ning across the vertex, but are not enclosed posteriorly by it. 

 Occiput brownish- white. 



Prothorax bronze black, anterior lobe and sides of middle lobe 

 white ; posterior prothoracic margin simple. 



Thorax. — Dorsum shining black, with broad yellowish- white 

 antehumeral bands ; sides and under surface greenish-white. 



Abdomen^ ground-colour reddish- white, with a broad metallic 

 black band on the dorsum of each segment. Segments 3-7 with a 

 very narrow basal ring of white, 8 with an apical ring but no basal 

 ring. In 10 the black colour does not reach the apex of the 

 segment. 



Legs white, with a black mark on the dorsal surface of each 

 femur. 



Venation, pterostigmata of fore-wings appreciably longer than 

 those of the hind-wings. Veins reddish in colour. 



I have been puzzled by a female specimen from Madras taken 

 b)'' Dr. Annandale on the Cooum River. The specimen is identical 

 in every respect with that described above save that the arculus 



