1872.] MR. A. G. BUTLER ON THE GENUS PIERIS. 29 



Genus 2. Delias, Hiibner, 

 Verz. bek. Schmett. p. 91 (1816). 



1. Delias parthenope. 



Thyca parthenope, Wallace, Trans. Ent. Soc. London, 3 vol iv 

 p. 347. n. 8, pi. 6. figs. 5, 5 a (1867). 



Penang. BM 



2. Delias ninus. 



Thyca ninus, Wallace, Trans. Ent. Soc. London, 3, vol. iv. p 347 

 n. 9, pi. 7. fig. 1 (1867). V 



Malacca. 

 Possibly a variation of T. parthenope. 



3. Delias pyramus. 



Thyca pyramus, Wallace, Trans. Ent. Soc. London, 3, vol iv 

 p. 347. n. 7 (1867). 



Pieris thisbe, tf , Boisduval, Sp. Gen. Lep. i. p. 449. n. 16 (1836) • 

 Gray, Lep. Ins. Nepal, p. 8, pi. 6. fig. 1 (1846). 



Nepal. BM 



4. Delias thysbe. 



Papilio thysbe, Cramer, Pap. Exot. iii. pi. 233. fig. C (1782). 

 Pieris acalis, Godart, Enc. Meth. ix. p. 148. n. 106 (1819)" ' 

 China. v '' 



5. Delias crithoe. 



Pieris crithoe, Boisduval, Sp. Gen. Lep. i. p. 450. no. 18(1836). 

 Java - B.M. 



6. Delias pasithoe. 



Papilio pasithoe, Linnaeus, Syst. Nat. p. 755. n. 53 (1766)- 

 Donovan, Ins. China, pi. 30. fig. 2 (179y). ' 



Papilio aylaia, Linnasus, Syst. Nat. i. p. 465. n. 44 (1758). 



Var. Papilio dione, Drury, 111. Ex. Ent. ii. pi. 8. figs. 3, 4 (1773) 



Papilio porsenna, Cramer, Pap. Exot. i. pi. 43. figs. D, E (1776)'- 

 iv. pi. 352. figs. A, B (1782). ° L " '' 



Silhet; Nepal; Moulmein ; China; Borneo. B.M. 



7. Delias chrysorrh^ea. 



Pieris chrysorrhcea, Vollenhoven, Mon. Pier. d. 6 n 3 r>] 2 

 fig. 4 (1865). v ' l 



Sumatra. 

 A species allied to D. pasithoe. 



8. Delias egialea. 



Papilio egialea, Cramer, Pap. Exot. ii. pi. 189. figs. D E(1779) 

 Delias tyche et apriate, Hubner, Verz. bek. Schmett n 91 

 n. 957, 958 (1S16). v 



