Eastern Picridcs. 



363 



tlie manner of the genus Callidnjas. The Eastern species may 

 be conveniently ai ranged in the following groups : — 



a. Panda group. Male white or yellowish, fore wings elon- 



gated acute ; female dark-bordered, 

 wings more rounded. 



b. Liberia group. Male bluish or dark brown, fore wings 



acute ; female dusky, or white and 

 black. 



c. Nero group. Male red or orange, fore wings acute ; 



female dusky. 



d. Pandione group. Broader, colours white and black ; lower 



wings beneath dusky irrorated, with a 

 spot on the disco-cellular nervule. 



e. Polisma group. Wings broad, delicate, white and black, 



not irrorated beneath ; discoidal cells 

 short. 



a. Panda group. 

 1. Tachyris Hombronii, Lucas. 



Pieris Hombronii, Luc. Rev. et Mag. de Zool. 1852, p. 325; 

 Voll. Mon. Pier. p. 5, pi. 2J.^,^.. 

 ITaft.— Northern Celebes (Coll. Wall.). 



This very fine species must come into the present genus, 

 although at first sight it resembles Thijca hyparete and its allies. 

 The species to which it is most closely allied is Tachyris lynceola 

 (which inhabits Timor), of which it may be considered a large 

 and modified form. It possesses the characteristic abrupt cur- 

 vature near the base of the fore wings which is found in so many 

 of the Celebes butterflies. (See Trans. Linn. Soc. xxv. pp. 14 — 

 19.) 



2. Tachyris cardena, Hewitson. 



Pieris cardena, Hew. Ex. Butt. vol. ii. Pieris IlL f. 17, 18; 



Voll. Mon. Pier. p. 25. 

 Pieris hagar, Voll. Mon. Pier. p. 38, pi. 4, f. 6. 



Hah. — Malacca, Borneo, Sumatra (Coll. Wall.). 



My specimens are intermediate between Hewitson's and Vol- 

 lenhoven's figures, and I have no doubt but that they represent 



