Anopheles listoni. 



The sixth long vein is covered with white scales, except for a 

 few dark scales about the middle of its course and a few near its 

 termination. 



The wing fringe has light-scaled areas opposite the extremities of 

 each long vein. 



Legs quite black but with minute white bands at each joint 

 formed by white scales on the apices of the segments. 



Characters of the larva (PL VII, Fig. 2). Both the median 

 and external frontal hairs are thickly branched, this character en- 

 abling jeyporiensis to be at once separated as a species distinct 

 from listoni and culiciafcies, the larvaj of which have simple 

 frontal hairs. The thorax carries a prominent pair of palmate 

 hairs in addition to those on the abdominal segments. 



Habitat and observations. This new species was first found in 

 the Jeypore State by Drs. Stephens and Christophers. It also 

 occurs in the Central Provinces (Nagpur), and a specimen has lately 

 been sent by Mr. Aitken from Jakot (Southern India). It has fre- 

 quently been found in Bombay. In all these places it was found 

 breeding either in streams or in the flowing water of rice-fields. It 

 is evidently closely allied to listoni and culicifacies. From the 

 former the adults can be distinguished by the differences in the wing 

 markings and by the presence of light scales at all the joints of the 

 legs ; from the latter by the differences in the wing markings. 

 According to Mr. Theobald the meso-thoracic scales are " narrow 

 curved" in jeyporiensis and "hair-like" in culicifacies, but these 

 differences are not easy to make out. 



14. ANOPHELES LISTONI (Listen). 

 (Coloured Plate X, Plate VII, Fig. 1.) 



References : Listen, Ind. Med. Gaz., Dec. 1901 ; Theobald, Proc. Roy. Soc., 

 Vol. LXIX, p. 378, and Monog. Culicid., Vol. Ill, p. 27 ; James, " Malaria in India," 

 p. 31 ; Giles, Rev. of Anoph., p. 28. 



Synonyms , Myzwnyia Listoni (Theobald). 



A. fluviatilit (James). 

 A. ckristophersi (Theobald). 



This is a very dark, small mosquito, readily distinguished by 

 its entirely black legs and white third longitudinal vein. The palpi 

 have three almost equal white-scaled bands, one at the apex, 



[103 



