Pierine Butterflies of the Genus Delias. 163 
secondaries ; in some examples from Burma it almost fills 
the area included between the first and second median 
branches, leaving only four diffused spots between it and the 
costa; in others it is limited by the first median branch, 
leaving five diffused spots ; but all kinds of links between the 
two types also occur. 
79. Delias parthenope. 
Thyca parthenope, Wallace, Trans. Ent. Soc. ser. 3, vol. iv. p. 347 
(1867). 
Thyca ninus, Wallace, J. ¢. pl. vii. fig. 1. 
lephant Island, Malacca, Borneo. B.M. Sumatra 
(G. & §. coll.). 
The type from Malacca is in the Hewitson collection mixed 
with the preceding species. 
80. Delias pandecta. 
Delias pandecta, Staudinger, Iris, 1889, p. 2 
Two males and one female, Palawan, Four examples 
(Godman and Salvin coll.). 
We have a female from Nias which resembles this species 
in colouring, but differs above in having the greyish-white 
macular belt on the upper surface of the primaries across the 
end of the cell, so that it touches the white spot. This may 
possibly be nearer to LD. aglaia, but without the male it is 
impossible to decide. 
81. Delias pandemia. 
Thyca pandemia, Wallace, Trans. Ent. Soe, ser. 3, vol.iv. p. 846, pl. vi. 
fies. 4,4 a (1869). 
Palawan, Labuan, and Sarawak. B. M. 
Fourteen examples, of which twelve are from the Godman 
and Salvin collection. Wallace’s type is in the Hewitson 
collection. 
82. Delias henningia. 
Pontia henningia, Eschscholtz, Kotzeb. Reise, iii. p. 214, pl. ix. 
figs. 20 a, b (1821). 
Var. Thyca lucerna, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. iv. 
p- 243 (1869); Lep. Exot. p. 62, pl. xxiv. figs. 2, 5 (1871). 
Var. Thyca ochreopicta, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. iv. 
p. 244 (1869); Lep. Exot. p. 63, pl. xxiv. figs. 3 (2 ),4(¢) (1871) *. 
Twenty-six examples, of which fifteen are from the Godman 
and Salvin collection. They separate into the following 
forms :— 
* T transposed the sexes of the two variations of this species. 
