296 SOUTH-AFRICAX BUTTERFLIES. 



b. Upper Districts. — Udlaiid's Mission Station, Great Noodsberg, 

 Tunjumbili, Hermansburg, and Greytown. Maritzburg {J. H. 

 Bowker). 



F. Zululand. — Etshowe {A. M. Goodrich and T. Vacliell). 



K. Transvaal. — Lydenburg District {T. Aijres). 



336. (13.) Pyrgus Chaca, Trimeu. 



6 9 Pu>V^(^ Chaca, Trim., Trans. Ent. Soc. Lend., 1873, P- ^^S, pi. i. ff. 9 



Ex}). al, Q), I iu. 3^ liu. ; ($) ^ iii- 5^ lin. 



^ Fuscous, with ichitc and uchreo2is s/xds. Fore-wing : irrorated 

 thinly in parts with some yellowish scales ; a broad, sub-reniform, 

 white spot at extremity of discoidal cell ; a very irregular row of eight 

 white spots, of which the first three are contiguous, and form a short, 

 rather wide, costal and subapical stripe, the fourth and fifth are nearest 

 hind-margin and minute, the seventh largest and just under disco-cellular 

 spot, and the eighth indistinct and just above submedian nervure ; a 

 hind-marginal row of seven indistinct small ochreous spots, of which 

 the lowest is suffused and almost obsolete. Hind-wing: some hoary 

 hairs along line of median and submedian nervures ; an indistinct, 

 good-sized, ochreous spot at extremity of discoidal cell; vague traces 

 of three or four small ochreous spots near upper half of hind-margin. 

 Cilia white, varied with black at ends of nervures. Under side. — 

 Hind-wing and costcd and apical region of fore-vAng mingled creamy 

 and fidvous-ochrcous, the fulvous predominating in hind-wing. Fore- 

 wing : white spots as above, but rather larger, and relieved by black 

 edgings from the ochreous colouring round them ; a small black spot 

 on costa close to base ; a row of seven small black spots on hind-margin 

 from apex to anal angle, the lowest two suffused and enlarged, so as 

 to join inner-marginal blackish ground-colour. Hind-wing : between 

 costal and submedian nervures, two transverse white bands (one before, 

 the other beyond middle) edged on both sides with macular black streaks ; 

 a hind-marginal row of six small black spots ; space between submedian 

 nervure and inner-marginal edge blackish, irrorated anteriorly with 

 creamy-ochreous ; costa at base with a black curved mark, about and 

 beyond middle bordered with grey. 



^ A^ot m dark as $ ; spotting similar, but all the yelloiv-ochreovs 

 spots larger and more distinct ; cilia creamy instead of white, more 

 broadly varied with black. Under side. — As in ^, but the fulvous 

 brighter, especially in hind- wing. 



Apart from the very considerable difference in size (P. Mohozutza, 

 not exceeding about 13 lines), both sexes of P. Chaca may, as regards 

 the markings of the upper side, be recognised by the possession of two 

 small additional white spots (the fourth and fifth) in the transverse 

 row beyond the middle of the fore-wings, and the duller and proper- 



