212 JOURNAL, BOMBAY NATURAL EISTORY SOCIETY, 1892. 



At Aden and Campbellpore a similar state of coadilioas exists — 

 the volcanic rocks of Aden proper having their counterpart in the 

 arid hills o£ Attock and Khairabad, while the Lahej oasis is represent- 

 ed by the sandy cultivated plain round the cantonment of Camp- 

 bellpore. At Aden C. trochilus alone is found, while at Campbell- 

 pore that species confines itself entirely to the rocky nullah 

 beds of the Attock and Khairabad hills ; whereas C. putli is found 

 close round the barracks at Campbellpore, frequenting a plant, 

 Eeleotropium sp. ? — and so far as my experience went, neither 

 species ever trespassed on the other's territory. At Trincomali, 

 C. putli regularly swarm at times in the grass, while C. trochilus is 

 unknown. 



20. Zizera hnysna, Trimen, Trans. Ent. Soc, ser. 3, vol. i, p. 282 

 (1862). Common and generally distributed. Mr. de Niceville, 5tt^^. 

 Ind., vol. iii, p. 116, unites this species with Z. lysimon (a butterfly 

 I am unacquainted with). Z. hnysna is a species with long narrow 

 wings, and, so far as my memory serves, more like 1. c. pi. xxvi, 

 fig. 174 [Z. gaika) than fig. 173 {Z. lysimon) ; in fact, is so little 

 like the latter figure that I doubt the possibility of this synonomy 

 being correct. 



21. Zizera gaika, Trimen, Trans. Ent. Soc, ser. 3, vol. i, p. 403 

 (1862). Rare in Aden, common inland. I found a single colony in 

 Aden in a water-course on the plateau above the tanks; it had estab- 

 lished itself in some rank vegetation at the foot of a small precipice 

 (where after heavy rain there was doubtless a waterfall), and was 

 fairly populous, though occupying a space only a few square feet in 

 area. Specimens from this colony were very distinct from any 

 specimens of the latter species, but inland, where the two forms are 

 found flying together, I fear they will be found to merge into 

 one another. Col. Swinhoe and Mr. de Niceville both cite 

 Z. karsandra as an Aden species. I think there must be some 

 mistake here, as I never met with it, and the former gentleman at 

 any rate derived the greater number of his Aden specimens from me. 



22. i}eM(iona:;^ma, King, Symb. Phys., pi. xl, figs. 3-6 (1834). 

 Common in Aden, January and February, 1884, not seen any other 

 time. I took a single $ Devdorim near Lahej, 4th January, 1885, which 

 I doubtfully identified as this species ; if the identification be correct 



