276 Mr. A. G. Butler on Diurnal Lepidoptera. 



(a. a.) Cenea, var. 



S Alee anticae margine externo dentato-sinuato, macula 

 subapicali minore; posticge fascia lata discali nigra ali- 

 quando interrupta; subtus fundo obscuriore ochraceo. 



? Cenea, var., maculis anticarum albis. Trimen in 

 Trans. Linn. Soc. xxvi. tab. 43, fig. 4 (1869) . 



(?, ? , Port Natal. Obtained 1858. Collected by Mr. 

 Gueinzius. 



(b.) Merope (true) . 



S Merope, Cramer, Pap. Exot.ii. pi. 151, figs. A, B (1779) . 



? Troplionms, Westwood, Arcana Entom. pi. 39, figs. 1, 2. 

 S Knysna. Presented 1859, by R. Trimen, Esq. ; 



? from Mr. Milne's Collection. 



The typical Merope, excepting in form, is on the upper- 

 surface much like the male of Meriones, but the tails of 

 the hind- wings are uniformly of a pale ochre colour ; the 

 undersurface of the hind-wings is also paler than in the 

 other Southern males. 



(2) . Tapilio Brutus. 

 (a.) Brutus. 



S Brutus, Fabricius, Sp. Ins. p. 13 (1781). 



? Hippocoon, Fabricius, Ent. Syst. iii. p. 38 (1793) . 



Sierra Leone. $ presented by the Rev. D. F. Morgan ; 

 ? collected 1858, by Mr. James Foxcroft. 



The male of this form, which agrees with the Sulfureus 

 {sic) of Palisot de Beauvois, difiers from Cramer's Merope 

 in its greater length of wing, and the very pale colouring 

 of the undersurface of the hind- wings. 



(b.) Niavius. 



c? Bruto similis at major, margine quoque anticarum 

 externo multo latiore. 



? Niavius, Cram. Pap. Exot. iii. pi. 234, fig. A (1782) . 



Ashanti. <? from Mr. Stothard's collection ; $ ob- 

 tained 1844, from the collection of the Wesleyan Mis- 

 sionary Society. 



This is also the Niavius of Palisot de Beauvois ; it may 

 be at once distinguished from Hippocoon by its much 

 gi-eater size, and more elongate wings ; the Ashanti forms 

 of Danais Niavius and of Diadema Anthedon difier from 

 the Sierra Leone forms in the same particulars. 



