26 Dr. G. B. Longstaff on 



to be from 24° — 15|° N. It is usually common where it 

 occurs, and at Aswan it appeared to be attached to the 

 pink-flowered Lotus arabicus, Linn. 



26. Catochrysops malathana, Boisduval, var. nilotica, 

 Aurivillius. 



Two males were taken by the Swedes to the South of 

 Kaka [Lat. 10° 40' N.]. 



I have no other record in the Sudan of this common 

 Central and South African butterfly, which has also been 

 reported from Lagos and Madagascar, as well as from 

 Lahej in Southern Arabia. 



27. Zizera lysimon, Hiibner. This includes Z. karsandra, 

 Moore, and, according to De Niceville, also Z. knysna, 

 Trimen. 



In 1909 I took this fairly commonly at Khartum, also 

 a single example at Kosti [Lat. 13° 10' N.] and another 

 at Luxor. 



In 1912 I took two on Abba Island, one at Kodok, also 

 one at Tawfikiya [Lat. 9° 25' N,], as well as one at Port 

 Sudan. 



Rothschild took one at Nakhila (f . karsandra) ; Bennett 

 found it plentiful in Sokotra, and Yerbury took it at Aden 

 (f. knysna). 



This species is common in Central and South Africa, but 

 I have no record of it on the White Nile south of 9° 25' N. 



According to Bingham (4. vol. ii, p. 358) it extends 

 northwards to Southern Europe, Central and Western 

 Asia ; eastwards to India and Ceylon ; southwards to 

 Malaya and Australia. 



28. Chilades trochilus, Freyer. 



Loat took three at Kaka [Lat. 10° 40' N.]. 



In 1909 I took one at Aswan, and another at Khartum. 

 In 1912 I took three at Port Sudan. Cholmley took it 

 north of Suakin ; Yerbury at Aden ; also Peel in Somaliland. 



It occurs also in the Victoria Nyanza district, British 

 East Africa, Portuguese East Africa, Rhodesia, and also at 

 Lagos. To these Bingham (4. vol. ii, p. 368) adds South 

 Eastern Europe, Central Asia, India, Ceylon, Burma, 

 Malaya, and AustraUa. 



