Explanation of Plates. 313 



Fig. 7. Female offspring, irophonivs form : pupated July 6, 1904 ; 

 emerged August 26. The 13tli to emerge. A tyjjical 

 example of the southern form of truplwnius, here for the 

 first time bred from a twphonius female parent. 



8. Female offspring, cenea form : pupated June 12, 1904 ; 



emerged July 17. The 3rd to emerge. The discal patch 

 on the hind-wing is distinctly browner than usual, — a 

 result of trophoni^is parentage appearing in an otherwise 

 typical cenea 9 form. 



9. Female offspring, cenea form : pupated June 22, 1904 ; 



emerged July 29. The 7th to emerge. 



10. Female offspring, cenea form : pupated July 8, 1904 ; 



emerged August 24. The 11th to emerge. The right- 

 hand wings, being somewhat crippled, are only partially 

 shown in the figiire. 



11. Female offspring, cenea form: pupated June 11, 1904; 



emerged July 4. The 1st to emerge. The shape of the 

 principal spot of the fore-wing, and the development of 

 a liglit patch on its inner margin, as well as the evident 

 tendency of the two markings to fuse, show a distinct 

 influence of the troplionius parentage. 



Explanation of Plate XVIII. 



Female forms of Papilio danlanus. 



All the figures are about the natural size. The butterflies were 

 intended to be precisely of the natural size, but as a matter of fact 

 they are all slightly enlarged. Furthermore, probably in consequence 

 of the concurrence of minute errors, the figures on the right side, 

 3 and 4, are rather more magnified than those on the left, 1 and 2. 

 The error is well within the limits of individual variation. 



Fig. 1, Papilio clardanus, sub-sp. pohjtyop>lins, $ f. trimeni, n. f. 

 Kikuyu Escarpment, British East Africa, 6500-9000 feet. 

 W. Doherty, October — November 1900 : in the Hope 

 Department, Oxford University Museum. The specimen 

 shows distinct rudimentary "tails" to the hind-wing. 

 The pale tints are yellow and not white, while the 

 pattern is also very ancestral as compared with the 

 Jiippocoon form from ihe same locality (Fig. 2). 



