366 Mr. A. R. Wallace on 



7. Tachyris formosana, Wallace. 

 Piensformosaria, Wall. Proc. Zool. Soc. 186G, p. 356. 



//at.— Formosa (Coll. V/all.) ; Siam (Coll. W. W. Saunders). 



This species has tlie lower wings of the male beneath edged 

 and washed with yellow, showing a beautiful transition from the 

 preceding species to T. hippo and T. ada. A specimen from 

 Siam in Mr. W. W. Saunders' Collection agrees closely with this, 

 and one in the British Museum (locality unknown) has a pale sul- 

 phur-yellow tint spreading over most of the surface of the wing. 



8. Tachyris andrea, Eschscholtz. 



Pieris andrea, Esch. Voy. Kotzebue, pi. x. f. 23 a, b, $ . 



Female. — Above, dusky, tlie uppers with two white oval spots 

 at the end of the cell as in the Timor form, and three elongate 

 patches separated by the median nervules; the lower wings with 

 a diffused discoidal white band. Beneath, as in the Timor speci- 

 mens, but the posterior band is rather wider, and the costa of the 

 hind wings has a margin of rich yellow, which is enlarged at the 

 outer angle, where it joins the dark band. 



/Tat.- Philippine Islands (Coll. Wall., W. W. Saunders $). 



The male figured by Eschscholtz has very elongated and pointed 

 fore wings. 



9. Tachyris hippo, Cramer. 



Papilio hippo, Cr. 195 B, C, $. Pieris hippo, Bd. Sp. Gen. p. 53 i; 



Voll. Mon. Pier. p. 42. 



Papilio phryne, Fab. Ent. Syst. III. i. p. 19G, $. 



Pieris elconora, Bd. Sp. Gen. p. ■181. 



Hah. — N. India, Ceylon, Singapore, Sumatra, Philippine Islands 

 (Coll. Wall., B. M.). 



Tliis species is distinguished from its allies by the clear ochre- 

 yellow colour of the under surface of the lower wings in both 

 sexes. A female from N. India in Mr. Moore's Collection has 

 the wings coloured nearly as in the male, except that the apical 

 spot is absent; the under side of the hind wings is ochre-yellow. 

 The Ceylouese specimens are more richly coloured beneath. 



10. Tachyris enarete, Boisdiival. 



Pieris enarcfe, Bd. Sp. Gen. p. 480, S; Guer. Voy. Favorite, 



pi. ii. f. 1. 

 Mab.—Borneo (Coll. Wall.). 



Well described by Boisduval, who gives " Moluccas" as the 



