Papilio dardanus (merope) and Acrea gohnstoni. 283 
Plate XVII, Fig. 8, about the same as No. IIT on p. 681. 
”? ” ” 9 \ 
10f » ” » » Nos. IV-V » 
Rete LD) 
The uniouredcripple; 9% 7%) 2» 
” 
The two cenea represented in Figs. 8 and 11, on Plate 
XVII, show the influence of trophonius parentage (see 
description of Figures, p. 315 
In the latter pages of this memoir these 11 specimens, 
both male and female, will be often referred to and 
compared with other forms. 
II. Papilio dardanus 2 f. trimeni, new form. 
In his Presidential Address to the Entomological Society 
of London in 1898 (Proc. 1897, pp. Ixxxviu, ‘xxxix) Mr. 
Roland Trimen, F.R.S., described a remarkable form of the 
female dardanus, sub-species tibullus, from Zanzibar, in 
the Hope Department. After expressing the opinion 
that the West African dionysos was the least modified as 
compared with the male of all the various tail-less conti- 
nental female forms known until that time,* he went on to 
describe the specimen from Zanzibar as “a much closer 
approximation to the masculine coloration. In this female 
the tranverse trace of black in the fore-wings is even 
fainter than in the dionysos form, and the colour of the 
wide pale spaces and the hind- marginal spots in all the 
wings is almost exactly of the pale creamy-yellowish tint 
of the male P. cenea; and on the under-side, while the 
pale yellowish of the fore-wings is better divided by 
blackish than on the upper-side, the colouring of the 
hind-wings corresponds much more nearly to that of 
the male than in any other female I have seen—the 
characteristic break in the submarginal brownish band 
being moreover very complete and ‘wide. There can be 
no doubt that in this specimen we have a marked case of 
reversion to the original colouring of the female, but it is 
unaccompanied by any inclination towards the recovery of 
the lost tail of the hind-wings.” In the same address 
(p. Ixxxvil) the distinguished African naturalist expresses 
the opinion that “we may not unreasonably hope to dis- 
* Speaking of dionysos, Mr. Trimen quotes his earlier paper in 
Trans. Ent. Soc. Lond. 1874. The reference is erroneously given 
as p. 178: it should be p. 148. 
TRANS. ENT. SOC. LOND. 1906.—PART II. (SEPT.) 19 
