Benes ea ge a eet gee el aS es cen 
sin owe i * —, = 
cli 
differs in structure more from chlorodippe than this does from 
Central European cydippe L. (1761) = adippe L. (1767), and 
is one of the innumerable instances of a geographical race 
having become modified in structure as well as pattern. The 
second species is Argynnis paphia, found in the same moun- 
tains, but this species, unlike A. cydippe, does not occur in 
Southern Spain. The Algerian A. paphia dives, therefore, did 
not extend into Mauretania from the west. Its occurrence in 
the Kabylie renders it almost certain that it reached Africa 
via Sicily. The Aurés are the chief locality for a third 
butterfly, this time a species of Ethiopian origin, Teracolus 
daira nouna, which is also found in Oran and in many rocky 
hills-of the desert wherever the food-plant grows (Capparis), 
its range extending into East and West Africa. 
The Avifauna of the High Plateaux contains many interest- 
ing species, of which I will mention only a few. The largest 
of the Palaearctic birds, the Bearded Vulture, still occurs in 
the mountains, but has become rare of late. We have a few 
specimens in the collection obtained at El Kantara and Djebel 
Taia. The huge bird is occasionally seen in the air at El 
Kantara. The red-billed Chough also nests in the rocks of 
the High Plateaux, the same species as in Ireland and the 
West of England; it is quite common at El Kantara, where 
flocks of them come down into the valley to feed. The 
Entomologist’s attention will be drawn off from his quest by 
the note and lively behaviour of a black bird with white tail, 
a Wheatear (Oenanthe leucura), which is common among the 
rocks, and if he has an eye for curiosities in nature he may 
give up insects for a little while and hunt for the nest of this 
bird. There under a rock is a mound of pebbles which look 
as if they had been washed by rain from underneath the rock, 
the mound is so high as almost to close up the cavity under 
the rock, and behind, well concealed from view, is the nest. 
There are other birds in the steppe and desert which have a 
similar habit, f.i., the lark Rhamphocorys places in front of 
its nest a wall of stones which is about as high as the nest 
and which does not conceal it (on the contrary, attracts the 
attention, at any rate, of the human being). The pebbles 
are gathered by the bird in the neighbourhood, and the object 
