2 Chr. Aurivillius. 



So far as we know, the land along the White Nile like 

 all dry countries is very poor in Lepidoptera, especially in butter- 

 flies, and much poorer than the Somaliland and the open parts 

 of South Africa. Many species are however probably still to be 

 discovered there as well as in Kordofan, especially if collections 

 were made during the rainy season. All the collections of the 

 Swedish expedition were made in the dry season and the Lepidop- 

 tera are nearly all good specimens of extreme dry season forms. 



Mr I. Tragardh, who was the entomologist of the expedi- 

 tion, has collected practically all the lepidoptera enumerated in 

 the following list. 



Fam. Danaididae. 



1. Danaida chrysippus L. 3 a 71 , 1 9. — Khartum, 1 and 2 

 Febr.; Kaka 27 Febr. 



The area below the cell of fore wing is distinctly paler than 

 in West- African and South African specimens. The female has 

 the areas 2 — 4 of hind wing slightly tinged with white and 

 forms a transition to the variety. 



var. alcippus Cram. 2 <?, 1 9. — Khartum and Kaka, together 

 with the typical form. 



2. Danaida dorippus Klug. la". — Khartum. 



Fam. Nymphalidae. 



Subfam. Acraeinae. 



3. Acraea vinidia Hew. 1 cT. — Gebelein, 18 Febr. 



An interesting specimen agreeing in colour with the West- 

 African type form, but in the greater extension of the pale areas 

 with the East African race tenella E-ogenh. This species was 

 not hitherto recorded from the White Nile nor from Kordofan. 



4. Acraea encedon L. var. daira Godm. & Salv. Id". — 

 Eenk; 21 Febr. 



Subfam. Nymphalinae. 



5. Pyrameis cardui L. 2 d* . — Ed Dueim, 3 April ; [Cairo, 

 18 January]. 



6. Byblia ilithyia Drury. 1 $. — Kaka, 26 Febr. 



