48 Dr. G. B. LongstafE'ow 



distinctly of the wet-season form, the female " wet " or 

 " intermediate." 



In 1912 I took a male at Kiro, another at Lado, also a 

 male and two females at Gondokoro. 



As butterflies of the genus Terias are quite easily seen 

 when on the wing, it might appear allowable to conjecture 

 that hrigitla does not extend far north of Lake No [Lat. 

 9° 30' N.], but the fact that specimens of the preceding 

 species turned up no less than three degrees north of that 

 place makes one cautious. 



T. hrigitta is found in Abyssinia, Somaliland and through- 

 out tropical and South Africa. 



68. Colias hyale, auctorum, f. marnoana, Rogenh. 



In 1909 I found this butterfly almost abundant in the 

 beanfields at the junction of the Blue and White Nile, just 

 below Khartum, near a village called Mogran. 



During my visit in 1912 I did not work that exact 

 locahty, but I netted two males at the edge of a large 

 cottonfield at Kadaru, opposite to Kerreri, and a few miles 

 to the north of Khartum. 



Peel took a female in Somaliland in 1897. It is fairly 

 common at Port Sudan, and it occurs in Abyssinia, but 

 Col. Yerbury tells me that the genus has no representative 

 at Aden. 



C. hyale is very widely distributed over the Palaearctic 

 region. 



Sub-family PAPILIONJNAE. 



69. Papilio demodocus, Esp. 



Taken by Dunn on the Bahr al-Zarafa; by the Swedes 

 at Khartum, where the Rothschild party found it abundant 

 among lemon trees. 



I saw but few at Khartum in 1909; at the time of my 

 second visit, however, it was quite common among limes 

 {Citrus limetta). 



Mr. H. H. King assured me that demodocus is found up 

 the White Nile, but could give no particulars. 



Selous took two at Ardeiba in the Southern Bahr al- 

 Ghazal. It occurs at Aden, also in Somaliland, and is 

 found throughout tropical and South Africa. 



70. Papilio pylades, Cramer. 



Loat took a female at Gondokoro, noting it as " rare." 



