NYMPHALID.E. 151 



the authority of Boisduval, who notices it as among the col- 

 lection made by M. Delegorgue at Natal ; a specimen of the 

 second species, from South Africa, is in the British Museum ; 

 the third is common in many parts of the world, and is by 

 no means rare in this Colony. All are handsome insects, and 

 above the middle size, never expanding less than 2J inches; 

 and the largest, D. Salmacis, sometimes spreading more than 

 4J inches across the wings. The $ insects are marked with 

 iridescent, violet-shot markings on a black ground ; the 

 females are either duller in colour, or strikingly different. D. 

 Bolina ? is a remarkable instance of the latter peculiarity, 

 being coloured and marked with reddish ochreous, and white- 

 spotted black margins, and so closely resembling Danais 

 Chrysippus, Linn., that at first sight it might easily be taken 

 for that Butterfly. 



89. Diadema Salmacis. 



Papilio Salmacis, Drury, III. Nat. Hist., II, pi. 8, f. 1,2. . 



Fab., Ent. Syst., Ill, 1, p. 132, n. 408. 

 Papilio Salmasis, Herbst, Bek. Ins. Schmett.^VlI, pi. 166, 



[f. 5, 6. 



Papilio Omphale, Stoll, Suppl. Cram. Pap. Exot., pi. 26, 



[f. 1, la. 



Nymphalis Salmacis, Godt., Enc. Meth., IX, p. 397, n. 159. 

 Diadema Salmacis, Boisd., App. Voy. de Deleg., p. 592. 

 ,, DoubL, Westw., Hewits., Gen. Diurn. 



[Lep., pi. 39, f. 1. 



Chenu, Enc. d'Hist. Nat. Pap., f. 253. 



Expands 3 in. 7 lin. 4 in. 4 lin. 



$ . Dark-brown, inclining to black ; with white, broadly 

 violet-bordered bands. Fore-wing : glossed with pale-bluish 

 from base ; on costa, about middle, commences a moderately 

 broad, white, violet-bordered stripe, irregularly dentate in- 

 ternally, extending obliquely in the direction of anal angle, 

 but on second median nervule rather abruptly widening into 

 a broad blue-violet space, occupying outer half of inner- 

 marginal portion, but not extending to hind-margin ; on the 

 external edge of this violet space is a row of five or six white 

 spots ; close to costa, near apex, two oval white spots com- 

 mence a row parallel to hind-margin, usually interrupted just 

 above wide violet space, but continued to submedian nervure 

 by two or three white spots in the violet ; fringe conspic- 

 uously spotted with white. Hind-wing : from inner-margin, 

 a little before middle, a transverse, white band extending to 

 subcostal nervure bordered internally narrowly, outwardly 

 very broadly, with violet blue ; this latter colour radiating to 



