EUEIPUS. 
]49 
six spots, and by two or three small marginal sjiots near the apex, all pale yellow ; a semi- 
circular carmine spot at the anal angle. Underside very pale green : anterior wing from 
the base to beyond the middle dark brown (black -within the cell), with the spots as above, 
except that there is a white spot near the base, and three white spots between the bilobcd 
spot in the cell and the transverse band ; from the said band to the apex pale green marked 
by some ill-defined black spots ; the outer margin with pale green lunular spots (one spot 
bifid) : posterior wing pale green, with the spots of the upperside very indistinct. 
" Female. Differs little from the male : it is larger, is on the upperside without the blue, has the 
spots more deeply tinted with yellow, and is without the anal carmine spot; on the underside 
it is more deeply tinted with yellow. 
"Expanse, cJ -ig, ? in." (Ilewitson, I. c.) 
Var. COreanus, Leech. (Plate XVI. fig. 8, S •) Wings of male dark brown, the basal half suffused 
v.ith purple ; a straight white streak, originating at the base of fore wing, traverses about 
one third of its width; a submarginal row of spots runs round all the wings, terminating at 
the anal angle in a bright carmine elongated spot ; the discal area of both wings is traversed 
by two series of spots arranged irregularly, but concavcly to the base of the wings, besides which 
there are two (sometimes three) spots near the apex of the fore wing and near the anal angle 
of the hind wing, situated inside the submarginal band. The two discoidal spots are often 
confluent. All spots situated on the purple colouring are pure white, those on the remainder 
of the wing pale yellow. Wings of the female dark brown, spotted as in the male ; all the spots 
about the costa and disk of both wings white, the remainder pale yellow ; anal lunula carmine. 
Underside of both sexes — fore wings black; costa, apex, and outer margin pale bluish-green, 
all markings of the upper surface reproduced : hind wings pale bluish green ; veins very 
prominent, markings of the upper surface reproduced, mostly bordered with black ; anal 
lunule carmine. 
Expanse, c? 44, ? 5 inches. 
According to Pryer {I. c.) the typical form is not uncommon in Japan at 
Yokohama, Chichibu, and Yamato, but not easy to obtain in perfect condition. 
The same author adds : — " I have often seen several dozens in a day without 
being able to secure a single specimen. It is quite fearless, and the male has a 
favourite stand, often on the summit of a tall tree, from which it sallies forth 
and attacks any passing bird or insect, returning to its perch after it has 
chased the intruder away. Almost the only way to obtain it is to find an oak 
or chestnut which has been attacked by the boring Cossus or Hepialus, the 
fomenting sap from their burroAvs being very attractive to it. Each individual 
generally has its favourite tree, to which it descends to suck the flowing sap 
and fight the other insects which also crowd such attractive spots. Within 
the space of a few feet on the bole of a tree it may often be seen in company 
with two or three enormous Hornets and a crowed of Lethe sicelis, Stag- and 
other Beetles, which it buffets with its wings until its imperial claims are 
x2 
