392 LTaE^'iD-i:. 
but towards the apex the wings become dusky and the spots pale brown, margined with 
white, anal region pale orange, with two small black spots at the base of the tail, and one at 
the anal angle. Expanse of wings I5 inch. 
'• Two specimens taken by Mr. Jonas, near the Eiver Tokawa, about 140 miles X.W. of Tedo 
[Tokio], are all I have seen of this distinct species." {Janson, I. e.) 
The Western-Chinese form (Plate XXX. fig. 18) differs from the Japanese 
ill having two conspicuous white blotches on the upper surface of primaries ; 
the fringes of all the wings are pure white, and on the secondaries are 
preceded by a white line towards anal angle. Similar to the type on under 
surface. The white blotches of the Chinese specimens are represented in the 
Japanese examples by ill-defined pale brownish marks, and it is probably to 
these marks that Janson refers in his description of Z. enthea when he says 
*' disc of primaries lighter." 
One specimen from Omei-shan has the usually large basal spots on under 
surface of primaries replaced by a small black dot ; the first three spots of 
central series are confluent, and the orange colour on anal area of second- 
aries does not form a patch, but simply a dash before the black spot at anal 
angle and a ring round that in first median interspace. 
According to Pryer this species is on the wing in July, and is abundant at 
Asama-yama and not uncommon at Nikko. I took some very worn specimens 
in Yesso at the beginning of August. 
My collectors obtained specimens in Western China at Moupin and Omei- 
shan in June, at elevations ranging fi-om 4000 to 8000 feet. 
Christoph obtained it in Amurland, and Graeser states that he bred two 
fine females from some uniformly pale green larvte which he found feeding 
on JiKjlans mandscMrica. 
Zephyrus attilia. 
Thecla attilia, Bremer, Bull. Acad. Petr. iii. p. 469 (1861) ; Lep. Ost-Sih. p. 24, pi. ii. 
fig. 3 (1864) ; Pryer, Rhop. Nihon. p. 15, pi. iv. fig. 11 (1886). 
" Alae supra fuscaj ciliis albis, apicem anticarum versus fuscis ; aJse posticaj caudatae. 
" Alae subtus coerulescenti-albse ; anticte macula discoidali, fascia transversa, fasciis submar- 
ginalibus interruptis duabus (interiors obsoleta) lineaque ante cilia nigris. 
"AljB posticee fascia media recta (angulum analem versus angulum acutum formante) fascia 
interrupta submarginali lineaque ante cilia nigris, maeulis duabus anguU ani fulvis, nigro- 
notatis. 30 mm." {Bremer, I. c, Lep. Ost-Sib.) 
Pryer says that this is the most abundant " Thecla " in the neighbourhood 
of Yokoliama, and that it varies in the markings of both surfaces. 1 have 
