of South African BulterfHes* 289 



Pyrgiix, — one of which appears to be Cramer's Vindex ; b:it have 

 liitliei to found it impossible to ascertain whetlier the Linnaean and 

 Fabrician descriptions really apply to any of them. In my present 

 state of uncertainty regarding them, I think it better to defer 

 describing them until more complete investigation. I entirely 

 agree with Dr. Boisduval's remarks in his " Fauiie Entomologlqiie 

 de Madagascar," that " il est £l-peu-pres impossible de recon- 

 noitre la phipart des Hesperies de Fabricius, d'apres ses descrip- 

 tions incompletes ; il arrive tres-souvent qu'une de ses phrases 

 Latines convient a une vingtaine d'especes." 



Genus Nisoniades, Hiibn. 

 Niaoniades Umbra. 



Exp. 1 in. 



Diirk-brown, dusted with yellowish and whitish scales ; a few 

 small vitreous spots. Fore-wing : a conspicuous darker triangle, — 

 its broad base on inner margin, its apex on costal nervure, — a 

 little before middle; on the outer edge of this marking are a 

 sub-diaphanous spot close to costa, and a vitreous litura (like a ? 

 reversed) bordering it between 1st median nervuleand sub-median 

 nervure; a smaller dark triangle on costa rather beyond middle, 

 its base on 1st median nervule, outwardly edged by a line of 

 3 small vitreous dots; traces of a sub-marginal dark streak from 

 apex; cilia greyish, interrupted with dark-brown. Hind-wing: 

 a vitreous or sub-diaphanous dot about extremity of discoidal 

 cell, sometimes obsolete traces ot two darker fasciae about middle ; 

 cilia as in fore-wing. Underside. — Dull-ferruginous ; vitreous spots 

 as above. Fore-wing : edges only of dark triangles faintly indi- 

 cated ; about extremity of cell a brighter, almost orange space. 

 Hind- wing: fasciae more distinct, sometimes well marked. 



The hind-margins of the wings of this sombre little species are 

 rather more dentate than in others of the genus ; there is a marked 

 indentation of outline a little above anal angle of fore-wing, and 

 two others in upper half of hind-margin of hind-wing. In general 

 appearance and in its habits it reminds one of A'^. Toges, Linn. 

 It was rather rare at Plettenberg Bay, frequenting stony footpaths 

 on hill-sides. Mr. D' Urban has met with it abundantly on the 

 Eastern frontier. 



Hab. Plettenberg Bay ; Coll. mihi. — King William's Town ; 

 Colt. W. S. M. D'Urban.— Butterworth, Kaffraria(J. H. Bowker); 

 Coll. South Afr. Mus. 



VOL. 1. THIRD SERIES, PART III. AUGUST, 1862. U 



