34 MR. A. G. BUTLER ON THE GENUS PIERIS. [Jail. 16, 



43. Delias zebuda. 



Pieris zebuda, Hewitsou, Exot. Butt. iii. Pier. pi. 7. figs. 49, 50 

 (1862). 



Celebes. B.M. 



44. Delias descombesi. 



Pieris descombesi, Boisduval, Sp. Gen. Le"p. i. p. 465. n. 39 

 (1836). 



Silhet ; Darjeeling ; Nepal ; Moulmein ; Penang. B.M. 



45. Delias sthenobsa. 



Pieris sthenobcea, Boisduval, Sp. Gen. Lep. i. p. 466. n. 37 

 (1836). 



Moluccas. 



Perhaps a variety of D. descombesi ; it differs only in the paler 

 yellow and absence of red basal patch on under surface of hind wings. 



46. Delias aruna. 



c?. Pieris aruna, Boisduval, Voy. del' Astrolabe, Lep. p. 48. n. 4 

 (1832); <J $,Hewitson, Ex. Butt. 2, Pier. pi. 3. figs. 20-22(1861). 



2 . Pieris bajura, Boisduval, Voy. de l'Astrolabe, Lep. p. 48. 

 n. 5 (1832). 



Papua ; Waigiou ; Batchian. 



47. Delias inferna. 



Delias inferna, Butler, Lep. Exot. 8, p. 63. n. 4, pi. 24. fig 6 

 (1871). 



North-western Australia. B.M. 



48. Delias belisama. 



Papilio belisama, Cramer, Pap. Exot. 3, pi. 258. figs. A-D (1782). 

 Java. B.M. 



49. Delias glauce. 



Pieris glauce, Butler, Proc. Zool. Soc. p. 431. n. 2, pi. 25. fig. 2 

 (1865). 



Borneo. B.M. 



50. Delias isse. 



Papilio isse, Cramer, Pap. Exot. i. pi. 55. figs. E, F (1779), iv. 

 pi. 339. figs. C, D (1782). 



Papilio bicolor, Gmelin, Syst. Nat. 1, v. p. 2261. n. 880 (1788- 

 91) ; Zschach, Mus. Lesk. Ent. p. 88. n. 31 (1788). 



Amboina, N. Ceram. B.M. 



51. Delias echo. 



Thyca echo, Wallace, Traus. Ent. Soc. London, 3, vol. iv. p. 358. 

 n.47, pi. 8. fig. 3 (1867). 

 Bouru. 



