526 MR. A. G. BUTLER ON THE GENUS TERIAS. [June G, 



5. A Revision of the Species formerly included in the Genus 

 Terias (Pierince). By A. Gr. Butler, F.L.S., F.Z.S., &c. 



[Received May 22, 1871.] 



My principal object in the present paper is to refer the species of 

 this very difficult group to the genera into which I separated it in 

 my "Revision of the Genera of the Subfamily Pierince" (Cist. Ent. 

 iii. pp. 33-58). I shall not, therefore, increase the difficulty of 

 determining the already numerous and nearly allied species by de- 

 scribing all the unnamed forms at my disposal, but shall rather 

 strive to lighten the labours of my fellow-workers by clearing up, to 

 the best of my ability, the somewhat confused synonymy already 

 existing. 



As one or two of the species of Elodina have been confounded by 

 some Lepidopterists with Terias, I shall introduce that little genus 

 into the present paper. 



Genus 1. Elodina, Felder, 

 Reise Nov. Lep. ii. p. 215 ("1865"). 



1. Elodina egnatia. 



Pieris egnatia, Godart, Enc. Meth. ix. p. 138. n. 63 (1836). 

 Pieris cirrha, Boisduval, Voy. de 1' Astrolabe, pi. 2. f. 7 (1832). 

 Pieris parthia, Hewitson, Ex. Butt. i. Pier. 2. f. 12, 13 (1853). 

 Var.? Elodina hypatia, Felder, Reise Nov. Lep. ii. p. 216. n. 233 

 ("1865"). 



Var.? Elodina therasia, Felder, I. c. p. 215. n. 232 ("1865"). 

 Australia. Coll. B.M. 



2. Elodina bouruensis. 



Elodina bouruensis, Wallace, Trans. Ent. Soc. London, 3. iv. 

 p. 319. n. 4 (1867). 



Bouru (Wallace) ; id. 1 Aru (Wallace). Coll. B.M. 



Nearly allied to E. egnatia, but apparently distinct. 



3. Elodina angulipennis. 



Terias angulipennis, Lucas, Rev. Zool. p. 431 (1852). 



Pieris pallene, Hewitson, Ex. Butt. i. Pier. pi. 2. f. 8, 9 (1853). 



Richmond River, Moreton Bay, Port Macquarie. Coll. B.M. 



4. Elodina padusa. 



Pieris padusa, Hewitson, Ex. Butt. i. Pier. pi. 2. f. 10, 1 1 (1853). 

 Australia. Coll. B.M. 



Nearly allied to the preceding species. 



5. Elodina signata. 



Elodina signata, Wallace, Trans. Ent. Soc. London, 3. iv. p. 319. 

 n. 8(1867). 



New Caledonia. B.M. 



