ZEPHTEUS. 375 
the secondaries have a broad central band represented as far as the median iiervure by two 
blackish-brown lines, below the median are some irregular-shaped blackish-browu marks ; 
the submarginal band is composed of two crenulated blackish-brown lines ; there is a large 
velvety-black spot surrounded with fulvous in the first median interspace, a similar spot at 
anal angle ; the latter is preceded by a fulvous patch, and there are streaks of the same 
colour a short distance along the abdominal margin and along tho submarginal band to the 
spot in median interspace ; marginal band interrupted, dusky, and not well defined. 
Expanse 52 millim. 
Female. Primaries blackish ; tho discoidal cell is filled up with bright blue, and there is a broad 
streak of the same colour in the submediau interspace ; an orange spot lies beyond the cell, 
and this is separated by the third median nervule from a similar spot in the second median 
interspace. Secondaries fuliginous. Fringes whitish. Under surface grey-brown : the 
primaries have a darker discoidal spot outlined with white, and a broad silvery central white 
band bordered on each side with a darker shade of the ground-colour, and terminating on the 
first median nervule ; submarginal line silvery white, preceded by an ill-defined whitish 
band : secondaries silvery white, clouded with grey-brown at the base ; central band dark 
grey-brown, interrupted below the median nervure, its continuation uniting with a patch of 
the same colour on abdominal margin ; the outer fourth of the wing dark grey-brown, 
thickly powdered with silvery-white scales towards margin ; submargiaal line silvery white, 
but very ill defined ; marginal line silvery white ; there is a large velvety-black spot, sur- 
rounded with fulvous, in the first median interspace, and a similar spot at anal angle, the 
latter is preceded by a fulvous patch, and there is a streak of the same colour along the 
abdominal margin and another along tbe submarginal line to the spot in median interspace. 
Expanse 4G millim. 
Appears to be an exceedingly rare species in Western China ; the only 
specimens that I have received are a male and a female taken by 
KricheldorfF at Moupin in Jnne. 
As will be seen from the figure of the male (pi. xxvii. fig. 5) the black 
margins of all the wings are much narrower than in typical ataxus ; but as 
I have only one example of this sex from Western China, I am unable to say 
whether this is a constant character. 
Mr. de Niceville [1. c.) states that Z. ataxus is very rare in India ; the only 
records that he has of its capture are from Massuri, where both sexes were 
taken in June and July at an elevation of 7000 feet, and a small example of 
the female taken by Capt. Young in Kulu. 
There were no specimens in the collection of the late Otto MoUer from 
Darjiling, now in my possession ; and Mr. Elwes does not include it in his 
List of the Butterflies of Sikkim, although Horsfield and Moore record it 
from Darjiling. Westwood says that the type came from Simla. 
There can be no doubt that the insects described by Hewitson as ataxus 
and katura are sexes of one sjiecies. 
3d2 
