1891.] FROM SOUTH-WESTERN AFRICA. 61 



(Hesperidse.) 



Pyrgus secessus. 

 Pamphila obumbrata. 

 „ occulta. 



One of these is the type of a new genus of Lycsenidse, near 

 Zeritis, which I have called Erikssonia after its discoverer. Next 

 to E. acrcBina, the most remarkable of the new forms is Aphnceus 

 erikssoni, in which, while the structural characters agree with those 

 of the more brilliantly ornamented section of the genus, the colour- 

 ing is quite unique and exceptionally plain on both surfaces of the 

 wings. 



In addition to the new species, I have noted two marked varieties, 

 viz. in the cases of Crenis natalensis, Boisd., and Papilio morania, 

 Angas. Seasonal dimorphism is more or less strongly indicated in 

 the cases of Acrcea atolmis, HypolyccBna cceculus, Aphiceus ho- 

 meyeri, Herpcenia eriphia, Teracolus suhfasciatus, and Callidryas 

 florella. 



Among the 16 remaining species not known to extend into extra- 

 tropical Southern Africa, 4 are recorded besides from Angola only, 

 3 from the Upper Zambesi, 1 each from the Umvuli (Mashuna- 

 land), Lake Nyassa, Lake Victoria Nyanza, and Querimba ; 4 others 

 combine in their distribution two or more of the above-mentioned 

 localities; and the last {Char axes ephyrd) ranges from Mashuna- 

 land, south of the Zambesi, to Casamanzaj in between 12° and 13° 

 N. lat. on the West Coast. 



The rarer or more interesting previously described species are : — 

 Acrcea atolmis, A. atergatis, A. asema, Crenis benguelce, Crenis 

 Concordia, Pseudacrcea poggei, Charaxes guderiana, Aphnceus vic- 

 torice, A. homeyeri, and Abantis sambesina. 



Family N ymph alid^. 

 Subfamily Danain^. 

 Genus Danais, Latr. 



1. Danais chrysippus (Linn.). 



Omrora (August) and Ehanda (September). 



The nine examples (only one 5 ) are all of the ordinary typical 

 form, but small, the largest expanding 3 in. 3 lin., and the smallest 

 only 2 in. 7 lin. 



Subfamily Satyrin^e. 

 Genus Ypthima, Westw. 



2. Ypthima asterope (Klug). 



Omrora (August), Ehanda (August and September), and Oka- 

 vango River (December). 



With the exception of a single dwarf male from the Okavango River, 

 the twenty examples (twelve S , eight $ ) are larger than usual (exp. 

 al. 1 in. 6-9 lin.), and of a paler, more hoary grey on the underside 



