72 Dr. A. G. Butler on the Old-World 



Terias Templetoni, Butler, Ann. Sc Mag. Nat. Hist. ser. 5, vol. xvii. 



p. 218 (1886). 

 Terias simulatrix, Semper, Reisen Arch. Philipp. ii. vol. v. pi. xli. 



figs. 7-9 (1891). 

 Terias tecniessa, De Nic^ville, Jouru. Asiat. Soc. Bengal, Ixiv. p. 498 



(1896). 



Burma, Pegu, N.E., Central, and Southern India, Ceylon, 

 Andamans, N.E. Sumatra, Philippines *. 



The character by wliich the late Capt. Watson proposed 

 to distinguish T. silhetana from other species of the T. hecahe 

 group is that it has an extra black dot near the base of the 

 discoidal cell on the underside of the primaries. Unfor- 

 tunately this character is not always present, though usually 

 so in the narrow-bordered forms of the species. 



T. silhetana separates fairly easily into two types, the first 

 with a broad border to the secondaries at all seasons, the 

 second with a narrower border in the wet-season, which almost 

 or quite disappears in the dry-season. 



Broad-bordered type. 



The wet-season form is unnamed ; the dry-season form is 

 T. citrina=T. simuIatn\v = T. tecmessa (the latter being the 

 drier and commoner variation). 



Narrow-bordered type. 



The wet-season form is T. rotundalis = valUvolans= Tem- 

 pletoni ; the intermediate form is T. heliophila ; the dry- 

 season form is T. silhetana= T. icnlformis. 



41. Terias Moorei. 



Tei-ias Moorei, Butler, Ann. & Mag. Nat. Hist. ser. 5, vol. xvii. p. 216, 

 pi. V. fig. 1 (1886). 



Camorta. 



The late Capt. Watson regarded this as an extreme 

 variety of T. silhetana (to which, as my figure shows, it 

 bears not the faintest resemblance), solely on the ground that 

 the black dot, which lie believed to be confined to 2\ silhetana^ 

 occurs in our two examples, although not in the same part of 

 the cell. As a fact, the cell-markings on the under surface 

 of the species of Terias are eminently variable both in 

 number and position, sometimes on opposite wings of the 

 same individual. 



* We have a female said to have been obtained at Afghanistan over 

 fifty years ago ; but this is probably an error. 



