the Butterflies of the White Nile. 55 
African species, and probably has a wider range up the 
river than has been yet recorded. 
The other five are more Palaearctic in character, or are 
borderland species. C. eulimene, so far as is known, is 
confined to the Anglo-Egyptian Stidan, and I know of only 
one example of 7. ephyia taken outside that country. 
Synchloé glauconome has a wider range to the north, at 
Shendf? it gets within sixty-five miles of Khartim, but does 
not actually enter our district. 
In like manner there are three butterflies which just 
attain the southern end of our district, viz. :— 
23. Castalius usemia. 
46. Teracolus vesta. 
70. Papiho pylades. 
These are all Central or South African forms. 
Though well known to have a wider range outside our 
limits there are three species which, so far as actually 
recorded have a very restricted range on the White Nile :-— 
Terecolus halimede, 13° 22’—10° 40’. 
Terecolus pleione, confined to Kaka, Lat. 10° 40’, ex- 
cepting so far as the locality of Petherick’s specimens is 
unknown. 
Teracolus phisadia, 13° 22’-10° 50’, but presumably 
Capt. Dunn’s specimens came from something like 2° 
further south. 
The most northerly limit of the great genus Acraea 
would seem to be attained by A. acerata (f. vinidia) in 
Lat. 12° 37’ N. 
The sole species peculiar to the White Nile district 
would appear to be the little-known, and hitherto rare, 
Pinacoyteryx venata.* 
Any one dealing with the Butterflies of N.H. Africa 
must depend greatly on the magnificent work of Klug. 
The writer has had the good fortune to take all his 
Prierince. 
* While this paper was going through the press my attention 
was called by Commander J. J. Walker to the description by 
A. G. Butler [Ent. Mo. Mag., vol. ii, p. 169, 1866] and a good 
wood-cut of Aphnaeus (?) marmoreus, n. sp. The type, a female, 
was taken by Petherick on the White Nile, and would appear to 
be unique; it now stands in the National Collection next to the 
8. African Stugeta bowkeri, Trimen, 
