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



bordered with black above, being usually dotted at the ends 

 of the nervures. It differs chiefly in colouring, the wings 

 being bright lemon-yellow above instead of gamboge. The 

 largest examples of T. brenda show a somewhat greater 

 expanse of wings than the largest examples of T. senegalensis, 

 but size alone is of little consequence. 



33. Terias anemone. 



Terias anemone, Felder, Wien. ent. Monatschr. vi. p. 23 (1862). 



Terias mandarina, De Lorza, Lep. Jap. p. 18 (1869). 



Terias Mariesii, Butler, Trans. Ent. Soc. 1880, pi. vii. figs. 1-6. 



Terias hybrida, Bull. I. c. figs. 7-11. 



Terias connexiva, Butl. I. c. figs. 12-15. 



Japan and Chusan Island, round the south-eastern coast of 

 China from Shanghai to Hong-Kong. 



T. Mariesii is the wet-season form, T. anemone, hybrida, 

 and connexiva intergrades, and T. mandarina the dry-season 

 form. 



The transitions from wet to dry affect both surfaces simul- 

 taneously in this species, and thus at once distinguish it 

 from T. hecabe and T. suava, in which the upper surface 

 varies enormously at all seasons. The wet form (T. Mariesii) 

 differs from the parallel variety of the wet form in T. suava 

 in the more abrupt costal termination of the apical patch on 

 the upper surface. Our series of this species is represented 

 by 127 selected examples. 



34. Terias Hobsoni. 

 Terias Hobsmi, Butler, P. Z. S. 1880, p. 668. 



S.E. Corea, Japan, the Chusan Archipelago, Eastern 

 China from Hang-Chow southwards to Foo-Chow and 

 Formosa. 



It is possible that this may be a variation of the preceding 

 species, in which the outer border is equally well marked 

 on the primaries, but wanting on the secondaries : the dry 

 form is unknown to me. 



35. Terias unduligera. 

 Terias unduligera, Butler, P. Z. S. 1880, p. 668. 



Foo-Chow and N. Formosa. 



The dry form is quite unlike that of T. anemone, approach- 

 ing closely to that of T. hecabe. It is possible that this 

 may be inseparable as a species from T. hecabe, from which 

 it differs much as T. nicobariensis does from T. suava ; it does 



