Explanation of Plates. 315 
EXPLANATION OF PLATE XIX. 
Ancestral females of Papilio dardanus. 
All the figures are about 3% of the natural size. 
Fie. 1. Papilio dardanus, sub-sp. tibullus, 2 f. trimeni, n. f. 
Zanzibar, Lieut. Turner, 1884: in the Hope Department, 
Oxford University Museum. 
In this highly ancestral form of female the colour of 
the central part of the wings is not so white as in the 
hippocoon form, but very pale buff and thus far nearer 
to the colour of the male. The subapical patch is also 
imperfectly divided from the main pale patch of the 
fore-wing. 
2. Papilio dardanus, sub-sp. merope, Q f. hippocoon. 
Gaboon, Hewitson Coll., in Brit. Mus. 
The exceptional variety of the hippocoon form here 
figured exhibits distinct rudiments of “tails” to the 
hind-wings. It is of much interest that this ancestral 
character should be associated with the ancestral pattern 
of the hippocoon form. 
3. Papilio dardanus, sub-sp. merope, 2 f. hippocoon. 
W. Africa, Crowley Coll, in Brit. Mus. 
This specimen of hippocoon also exhibits traces of the 
lost ‘tails, although to a much less extent than in the 
last figured specimen, 
TRANS. ENT. SOC. LOND. 1906.—PART II. (SEPT.) 21 
