74 RHOPALOCERA AFRICJE ATJSTRALIS. 



with a most irregular, very sharply dentated, more or less 

 suffused transverse stripe immediately succeeding it; a small 

 spot touching costal nervure about middle ; a submarginal 

 dentate streak, often indistinct, always so towards costa. In 

 both wings traces occasionally of a hind-marginal row of spots 

 sometimes interiorly bordered by some whitish marks. Cilia 

 blackish, interrupted with white between nervules. 



? . Orange usually rather paler and duller, border not so 

 dark ,* ochreous basal suffusion usually much broader. Fore- 

 wing : at outer and upper edge of orange there is often an 

 upward projection of that colour ; border often very broad 

 at anal angle. Hind-wing : apical border usually broader 

 than in $ . UNDER-SIDE. As in $ . 



This species is very variable, chiefly in the colour of under-side of 

 hind-wing and the distinctness of its markings, but also in the extent and 

 tint of the orange of upper-side, which in some specimens is very limi'ed 

 in extent, in others very broad. I have no doubt, of this being the true 

 Thyra of Linne*, having taken one specimen near Cape Town which answers 

 in every particular to the details given in " Museum Ludovicse, &c." In 

 the majority of examples the under-side markings are not, so bright as Linne 

 notes them, and the orange of upper-side is more thoroughly one unbroken 

 field. The Thyra of Godart seems to be a different species, coming nearer 

 to Z. Perion than to any other. Some interesting specimens from Kaffraria 

 show a striking resemblance, except for the chequered cilia and want of 

 anal-angular point, to Z. Pierus, Cram., var. Aranda t Wallgr.), but the 

 under-surface is quite as usual. 



Pathways and bare spots on hill-sides. 



October (e) April (e). 



Common. Has a short, swift flight, and abruptly settles on the ground 

 or on stones. At Knysna I once or twice saw it on flowers of Brunia. 



Cape Town. Stellenbosch. Bain's Kloof (Worcester 

 side). Graham's Town (H. I. Atherstone). Knysna, 

 Genadendal (G. Hettarsch). Coll. Tri. 



Bashee River, Kaffraria (J. H. Bowker). Coll. S. A. 

 Mus. 



South Africa. Coll. Brit. Mus. 



171. Zeritis Pierus. 



Papilio Pierus, Cram., Pap. Exot., pi. 243, f. E, F. 



Herbst, Nat. Bek. Ins.,Schm., XI, pi. 



[323, f. 10, 11. 



Polyommatus Evadrus, Godt., Enc. Meth., IX, p. 671, 



[n. 170 (necVars. 2 and 3). 



Var. A. Cygaritis Aranda, Wallgr.) Lep. Rhop. Caffi-., p. 



[43. 



Zeritis Mars, Trimen, Tr. Ent. Soc. t 3rd Ser., I, 



[p. 285. 



