52 TERACOLUS 



turn out to be respectively dry-season and wet-season broods of the same 

 species." 



EXPLANATION OP THE FIGURES OF T. regina. 



Plate 17, tig. 1. J Nyasa Land (//. //. Johtiston ; Mm. Brit.). 

 la. Underside of fig. 1. 



lb. 2 Henga, Nyasa Land {R. Crawshay ; Mus. Brit.). 

 Ic. Underside of fig. lb. 



Id. J ^\i\rh 'River [Salvin-Godman Coll. ; Mus. Brit.). 



le. 5 Makaya District (/'. /uriy ; Miis. Bril.). 



If. S Loangwa Valley Pass, Nyasa Land (A*. Craws/uiy ; Mus. Brit.). 

 Ig. Underside of fig. If. 



Ih. ? Makaya District {F. Kirhy ; Mus. Brit.). 



TERACOLUS IMPEEATOR, Butler. 



(Plate 18, figs. 1, la-li.) 



Tm-acolus imperator, Butler, P. Z. S. 187G, p. 132; id. Ann. and Mag. Nat. Hist. (6)vii. p. 47 (1891); 

 Hampson, t. c. (6) v. p. 181 (1891); Butler, P. Z. S. 1894, p. 574 ; E. M. Sharpe, P. Z. S. 1894, 

 p. 348; id. in Neumann's Elephant Hunting in East Africa, App. p. 445 (1897); Butler, Ann. 

 and Mag. Nat. Hist. (6) xx. p. 395 (1897) ; id. P. Z. S. 1898, p. 408. 



Cttllosune imperator, Kirby, Syn. Cat. Diurn. Lepid. Suppl. p. 408 (1877). 



Altogether smaller than T. regina, and having the purple colour on the apical area 

 of the primaries confined to a narrow band. The secondaries have a distinct dark 

 transverse band in both sexes. The typical form of the female has an orange apical 

 patch on the primaries. 



Male.— Primaries milky-white, from the first median nervule ; the hind margin 

 and apex brownish-black, this colour radiating along the nervules ; the sub-median 

 nervure entirely black, terminating in a black spot at the posterior angle ; the apical 

 area relieved by a fairly narrow band of six ovate spots of iridescent purple, varying 

 in size, the sixth and lowest spot situated above the second median nervule being 

 nearly obsolete ; a broad black border from the costal margin to the first median 

 nervule enclosing these purple spots, the basal area thickly dusted with grey. 

 Secondaries milky-white, the black nervules being well pronounced, each one termi- 

 nating in a black spot on the hind-margin ; a sub-median streak of grey extending 

 from the base to the hind-mararin. 



Underside. — Primaries white, the apical area tinged with pale yellow. Secondaries 

 yellowish-white, with a dark discal band crossing from the costal margin to the first 



