



'Challenger * Lepidoptera. 427 



b. Species large, the red natch touching the anal margin, slightly suffused 



with white in some examples. 



Phyllodes roseigera, Butler, P. Z. S. 1883. Andamans. (Fig. 1.) 



c The red patch more rounded, of a more crimson tint, with a conspicuous 



snow-white centre. 



Phyllodes consoltrina, Westwood, Cab. Or. Ent. 57, pi. xxviii. fig. 2 

 Silhet. (Fig-. 2.) ^ 



Hind wings of Phyllodes (reduced). 



rf. The red patch considerably larger, the white patch within it also 



larger, extending nearly to the inner edge of its red zone. 



if* 



Mindanao. (Fig. 3.) 



the 



e. The red patch crescent-shaped, only extending halfway round 

 white patch, -which is rounded and very large ; apex cinereous. 



Phyllodes Jloralis, sp. n. Borneo. (Fig. 4.) 



f. The red patch still more abbreviated, so as only to encircle one third 



of the white patch ; the latter oblong. 



Phyllodes Verhuellii, Vollenhoven, Tijd. voor Ent. 1858, p. 159. Java. 

 (Fig. 5.) 



#. The red patch dark, elongated, not suffused with or interrupted by 



white ; the apex of secondaries broadly ash-grey or white. 



5 . Phyllodes conspicillator, Cramer, Pap. Exot. ii. pi. xcvii. figs. A, B 

 (1779)= dP. inspicillator , Guenee. Amboina. (Fig. 6.) 



In Cramer's figure the white patch appears to have travelled quite 

 across the secondaries, from the centre of the red anal patch to the apex ; 

 moreover, as the white emerges from the red it seems to give off atoms in 

 advance, so that the apical patch becomes gradually larger and whiter 

 from its commencement in P. Jloralis (in which species the white is 

 first seen to emerge from the red). Dr. Leu timer proposes the term " chro- 

 matropy " for this alteration in the position of colour-patches. 



We see in this case how important it is to describe all the local forms 

 which are known to be constant, since only by so doing can we hope to 

 discover the laws which regulate the disposition of the colours and mark- 



ings on the Lepidoptera. 



29* 



