462 PAPILIONID^. 
examples they are so broad that they give the outer half of the wings the 
appearance of being black marked with white lanceolate streaks in the 
nervular interspaces ; in other specimens the nervules of secondaries are not 
bordered with black at all. Sometimes the transverse band is entirely absent 
in the male. In several specimens of the female and a few examples of the 
male the under surface of secondaries is yellow. 
The melanic specimen figured was taken at Chang-yang. 
Judging from the enormous number of specimens that T have received 
3£. largeteaui would seem to be the most abundant member of the Pierinae 
occurring in Central and Western China at moderate elevations. From 
M. phryxe, Boisduval, it may be distinguished by the absence of the large 
black spot at end of the cell of primaries, and by the diff'erent character of 
the transverse band. 
Metaporia oberthuri. (Plate XXXVI. fig. l,s .) 
Pieris oberthuri, Leech, Entomologist, xxiii. p. 46 (1890) ; Obertliiir, Etud. d'Entom. 
xvi. p. 5, pi. i. fig. 2 (1892). 
Mali'. Wliite. Primaries : costa bordered with black ; nervules edged ou each side with black, 
expanding towards tlie outer margin, which appears in consequence to be deeply bordered. 
Secondaries black at outer angle and halfway along the costa; nervules bordered with 
black, and there are streaks of the same colour in the interspaces, pointed towards outer 
margin and bifurcated at their inner end. Under surface similar to above, but the streaks 
in interspaces of secondaries are connected with the borders of nervules ; a deep yellow patch 
at base of secondaries. 
Female. The black borders of nervules of primaries are not quite so broad as in the male, but 
otherwise there is no difference in the markings of the sexes. 
Expanse, S 80 millim., $ 92 millim. 
In one specimen the whole of the primaries is black with the exception of 
the discoidal ceU, a broad patch from the base between the median nervure 
and inner margin, intersected by the submedian and a curved series of five 
oblong spots beyond the middle of the wing. 
A fine series taken in May and June, at Chang-yang, Central Chiua, and 
Omei-shan, Western China. 
Allied to M. acnva, Oberth., but difi"ering therefrom in the character of 
the marginal borders. 
Metaporia (Pieris) hastata, Oberthiir (Etud. d'Ent. xvi. p. 5, pi. i. fig. G), 
from Yunnan, is very closely allied to M. oberthuri on the upper surface, but 
hardly separable from M. lotis on the under surface. It appears to be a 
