Pierine Butterflies of the Genus Terias. 65 



23. Terias Iceta. 



Terias lata, Boisduval, Sp. Ge"n. Le> i. p. 674 (1836). 



Terias Jageri, Me'ne'trie's, Cat. Mus. Petrop., Le"p. i. p. 84, pi. ii. fig, 1 



(1855). 

 Terias vagans, Wallace, P. Z. S. 1866, p. 357. 



India and Burma. 



Differs from T. Jierla chiefly in the more acute apex to the 

 primaries. The wet-season form of the species is T. vagans, 

 which the late Capt. Watson says "is possibly wrongly 

 identified in the British Museum " ; but, owing to the 

 fact (overlooked by him) that we possess Wallace's type, 

 it was not " possibly wrongly identified." The intermediate 

 form is T. Jcegeri and the dry form T. Iceta. 



24. Terias subfervens. 



Terias subfervens, Butler, Ann. & Mag. Nat. Hist. ser. 5, vol. xi. 

 p. 278 (1883). 



Japan, Southern Corea, and Eastern China. 



I based my description upon the extreme dry-season form 

 from Southern Corea, having incorrectly identified the wet 

 and intermediate forms from Japan as T. Jcegeri. The 

 species may readily be distinguished in all its forms from 

 T. Iceta by the much more prominent and acute apex to the 

 primaries and the distinctly narrower and far more regular 

 black border on the upper surface of these wings. 



T. smilax group. 



Characterized by the rounded apex to the primaries and 

 far more irregular abbreviated external border to these wings. 

 Donovan's figure is extremely slovenly and does not show 

 this irregularity ; indeed it far more nearly resembles a little 

 species which we have from the Bahamas ; nevertheless it 

 i has been generally admitted that it is intended to represent 

 the intermediate form of the Australian species. 



25. Terias smilax. 



Papilio smilax, Donovan, Ins. New Holl. pi. xx. fig. 3 (1805). 



Terias ingana, Wallace, Trans. Ent. Soc. 1867, p. 322 ; Butler, Cruise 



of the Cura9oa, p. 470, pi. xlix. fig. 3 (1873). 

 Terias parvula, Herrich-Schaffer, Stett. ent. Zeit. 1869, p. 78. 

 Terias varius, Miskin, Proc. Soc. Queensl. vi. p. 259 (1889), 

 Terias casta, Lucas, op. cit. vol. viii. p. 68 (1894). 



Eastern Australia and Baudin Island. 



T. casta = ingana is the wet-season form, T. varius appa- 

 rently = typical T. smilax intermediate, and T. parvula the 

 dry form. 



Ann. & Mag. N. Hist. Ser. 7. Vol. i. 5 



