IIESPERID.E. 291 



defined ; Idnd-iuing median hand divided as in Sataspes, hut not at all 

 ohlique. Under side. — Hind-wing : ground-colour much paler ; base 

 with a whitish tinge ; both transverse bands whiter, and beginning on 

 costal edge, — the sub-basal one not extending below su])COstal nervure, 

 — the median one outwardly darl'-edgcd, hiangulated (just above third 

 and just upon first median ncrvvXes), and not ohlique, its attenuated 

 lower extremity joining white of inner-marginal fold at some distanee 

 before anal angle; an indistinct Insinuated suhmarginal series of whitish 

 dots. 



$ "White spots and white of cilia purer, more conspicuous. Ukder 

 SIDE. — All the markings more sharply defined. 



A dwarf $ that I captured near Cape Town in April 1872 

 expands only 8 lin. 



The characters emphasised in the above description appear to be tlioroughly 

 constant, and warrant the separation of this form from Sataspes. 



I am not aware of the occurrence of this little species beyond tlie limits of 

 the Cape Colony, but within those limits it appears to be of wide distribution. 

 Near Cape Town I have not found it at all numerous ; there seem to be two 

 broods, one in September and October, and the other in March and April. Mr. 

 L. Peringuey took some examples in the Namaqualand District in October and 

 November 1885 ; and I took a specimen at Kobertson in January 1876. 



Localities of Pyrgus nanus. 



I. South Africa. 

 B. Cape Colony. 



a. Western Districts. — Cape Town. ]\Ialmesbury. Yogel Vley, 

 Tulbagh District. Robertson. Ookiep, Xamaqualand District 

 (L. Peringney). 

 h. Eastern Districts. — Uitenhage (/. H. Bowl-er). Between Somer- 

 set East and Murraysburg (/. H. Bowl-cr). 

 c. Griqualand West. — Kimberley {H. L. L. Peltham). 



333. (10.) Pyrgus Sandaster, Trimen. 



$ Pyrgus Sandaster, Trim., Trans. Ent. Soc. Lond., 1868, p. 92, pi. v. f. 9. 



Exp. cd., {$) 10 — II lin.; $ 11 lin.— i in. 



$ Glossy hroivnish-hlack, ivith minute white sp)ots ; cilia hlaeh, with 

 narrow ivhite inter-nervular interruptions. Fore-wing: five minute inter- 

 nervular white dashes on costa ; a linear transverse white mark in 

 discoidal cell towards extremity ; discal row of eight or nine spots irre- 

 gular, strongly bisinuate, — spots one to three forming a straight trans- 

 verse costal line, spots four and five a little beyond them, spots six and 

 seven lying very obliquely (almost longitudinally) before those above, 

 and spots eight and nine (one or both sometimes obsolete) vertically 

 below seventh spot ; in some specimens, an indistinct transverse linear 

 white mark before middle, between first median nervule and submedian 



