282 [December, 



angulated streaks are much fainter and without the strong rufous 

 tinge so pronounced in cassius. 



This form of Fseudonympha agrees with P. vigilans on the upper- 

 side as regards the possession of the small fulvous patch on median 

 nervules of hind-wing, but differs in having a larger fulvous area in 

 fore-wing ; it differs further on both surfaces in the smaller, less circular, 

 but more conspicuously yellowish-ringed ocellus of the fore-wing, and 

 in wanting or presenting only in very minute form the two (sub-apical 

 and sub-anal-angular) ocelli on the under-side of the hind-wing ; also 

 this last-named surface is less densely striolated and freckled generally, 

 leaving the two transverse irregular striae more pronounced. 



As long ago as October 21st, 1863, I took two £ <$ of this 

 jpseudonympha in Bain's Kloof, the mountain road between Wellington 

 and Worcester, in the south-western district of Cape Colony. I 

 regarded these at the time as a variation of P. casshis, but have always 

 kept them in my collection of South African butterflies not among 

 but just apart from my series of cassius. Dr. Longstaff's most 

 interesting re-discovery— after so long an interval as fifty years— of 

 this form in both sexes, occurred at Caledon, in the same south-west 

 district of the Cape Province (but perhaps between 30 and 40 miles 

 south-west of Bain's Kloof), five males and two females having been 

 captured by him from January 23rd to February 3rd, 1914. 



Mr. N. I). Riley pointed out to Dr. Longstaff that in the British 

 Museum (Natural History) there is a single $ Pseudonymplia identical 

 in characters with the specimens above diagnosed as P. detecta, n. sp. 

 This example formed part of the series of P. casshis in the Hewitson 

 Collection, received by the Museum about the year 1878, but bears no 

 record of date of capture, or label of locality beyond that of " South 

 Africa." 



EXPLANATION OF PLATE XII. 



SOUTH AFRICAN SATYR1NAE OF THE GENUS PSEUDONYMPHA. 



Fig. 1. — Pseudonympha cassius, Godart, <J ; Caledon, Jan. 23rd, 1914. 



Fig. 2. — P. cassius, ? ; Knysna, Feb. 20th, 1914. 



Fig. 3. — P. detecta, Trimen, $ ; Caledon, Jan. 29th, 1914. 



Fig. 4.— P. detecta, $ ; Caledon, Feb. 2nd, 1914. 



Fig. 5. — P. detecta, under-side ; Caledon, Feb. 3rd, 1914. 



Fig. 6. — P. cassius, under-side; George, Feb. 15th, 1914. 



Fig. 7.— P. vigilans, Trimen, <? ; Table Mt., March 16th, 1914. 



Pig 8.— P. vigilans, Trimen, ? ; Table Mt., March 16th, 1914. 



Glaslyn, Waterden Eoad, Guildford .- 

 October 10th, 1914. 



