374 Mr. A. R. Wallace on 



lie omits to mention that the underside of the female is slightly 

 dusky, caused by a few groups of ashy scales, and that the yellow 

 maro-in is very indistinct. This is decidedly not the paulina of 

 Cramer, whose figure represents a different insect, to which Bois- 

 duval's description of the female perhaps refers. 1 had named 

 and described this species before receiving Dr. Felder's work. 



b. Liberia group. 



28. Tachyris celestina, Boisduval. (PI. VIII. fig. 6, Q a, ?.) 



Pieris celestina, Bd. Sp. Gen. p. 4Si ; Hew. Ex. Butt. vol. ii. 

 Pieris IV. f. 29, 30, $ ; Voll. Mon. Pier. p. 46. 



Female. — Above, bluish-white or rich yellow ; basal triangle 

 dusky; broad border and apical triangle black, with four sub- 

 apical spots of the colour of the disc. Beneath, the markings as 

 above ; in the white variety the disc pearly-white, the base of the 

 uppers and the abdominal margin of the hind wings yellow, the 

 costal margin of the hind wings chrome yellow, the apex of liie 

 upper and the outer margin of the hind wings purplish-ashy, tlie white 

 spots diffused ; in the yellow variety the border is deep and nearly 

 uniform purplish-brown, the disc and spots of the uppers yellow 

 as above, the disc of the hind wings pale ochre, with the costal 

 and abdominal margins yellow. Head and thorax blackish, with 

 dusky hairs. Antennaj dusky, obscurely ringed with white beneath. 



Hab. — (Males.) New Guinea, Salwatty, Waigiou, Mysol, Aru 

 Islands (Coll. Wall.). 

 (Females.) Aru Islands, Waigiou (Coll. Wall.). 



Tiie specimens described by Boisduval and VoUenhoven as 

 females are males, as can be easily seen by examining the anal 

 valves ; specimens exactly similar are in my collection. From 

 the close resemblance of the male to T. Jacquinotii, except 

 in colour, I am strongly inclined to believe that the specimens 

 above described are females of this species, a view which the 

 localities above given renders probable. 1 obtained several of 

 these females of both colours, varying somewhat in details, but 

 evidently forming two distinct types of that sex, as occurs in T, 

 faulina, and in both sexes in T. cycinna. 



29. Tachyris Clementina, Felder. 



Pieris Clementina, Feld. Sitz. Akad. Wiss. xl. p. 448, $ ; Voy. 

 Novara, tab. xxv. f. 6. 



iZ'r/t.— Amboina (Coll. Felder). 



