162 Dr. A. G. Butler on the 
Var. 9. D. tthiela 8,=D. berinda 9. 
Nineteen specimens from Darjiling (including the type), 
from the Khasia and Naga Hills and Assam ; thirteen of 
these were received from Messrs. Godman and Salvin. Also 
one example in the Hewitson collection. 
D. berinda agrees with our solitary female. 
Var. 10. D. adelma. 
Chang-Yang, Central China (Leech). 
This form is even blacker than D. cthiela, the white discal 
spots being replaced by grey streaks; the yellow at anal 
angle and on abdominal area of secondaries has, however, 
reappeared, 
Var. 11. D. patrua. 
Chang-Yang, Central China (Leech). 
Only differs from the preceding variety in the reduction of 
the yellow patch at base of secondaries above and of all the 
yellow markings below. It was most inconsistent on the 
part of my excellent friend Mr. Leech to regard it as a 
distinct species, and one of these days he will doubtless admit 
as much. It may be supposed that my present action is also 
inconsistent with that formerly taken by me; but this is not 
so. I have always followed the plan of regarding differently 
marked types, especially if they did not agree in form and 
had been received from different localities, as distinct species ; 
but whenever I have obtained series of intergrades which 
proved their identity, I have at once admitted the impossi- 
bility of keeping them separate. A very small difference in 
pattern may be of specific value, but a mere variation in the 
size of spots between two specimens taken in the same 
locality is most unlikely to be of importance. 
78. Delias aglaia. 
Papilio aglaia, Linnezeus, Syst. Nat. ed. x. p. 465 (1758). 
Papilio pasithoe, Linnzeus, Syst. Nat. ed. xii. p. 755 (1767) ; Donovan, 
Ins. China, pl. xxx. fig. 2 (1799). 
Papilio dione, Drury, Ill. Exot. Ent. ii. pl. viii. figs. 3, 4 (1773), 
Papilio porsenna, Cramer, Pap. Exot. i. pl. xliii. D, E (1776). 
Darjiling, Assam, Silhet, Nepal, Tenasserim, Burma, 
China. Thirty-four examples. B. M. 
Fifteen of the specimens were received from Messrs. God- 
man and Salvin; there are also four others in the Hewitson 
collection. This species varies a good deal as regards the 
amount of creamy yellow on the upper surface of the 
