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Mr. E. Doubleday on some new Diurnal Lepidoptera. 177 
vided by the nervures, commencing in the discoidal cell of the an- 
terior wing, and terminating on the inner margin of the posterior 
wings, of which it occupies fully two-thirds. This band is nearly 
straight on its inner side, but externally it is suddenly widened. be- 
low the radial nervure of the anterior wings, and much dentated on 
the posterior wings. It is preceded on the costa by a large sub- 
quadrate spot of the same colour divided into four by the nervures. 
At the apex of the anterior wings are two elongate green spots, 
followed on the outer margin by a series of geminate spots and 
a simple round one at the “anal angle of the same colour. On 
the posterior wings, towards the outer margin, are three rounded 
green spots, each followed by a small dot of the same colour 
(sometimes very indistinct). “These are succeeded by three ge- 
minate spots; the first rounded, the second elongate, the third 
rounded, mear the anal angle and almost touching the transverse 
band. Below fuscous, the anterior wings darker at the base ; to- 
wards the anal angle a marginal series of five or seven small 
white spots placed in pairs between the nervules, between which 
and the margin are two or three very minute white dots. Pos- 
terior wings with three black striz in the cell, a macular band 
of a pale gold colour near the outer margin, and two points of 
the same colour near the anal angle. 
Head and thorax black, spotted with white. 
Abdomen fuscous, above with the edges of the segments paler, 
below with five series of white spots ; anal valves rounded. 
This species is closely allied to P. Nireus, but has the band 
much wider and somewhat different in its direction, and the anal 
valves are much rounder. 1| may here remark that ‘the P. Nireus 
of Cramer, t.378. f. F.G, from the Cape of Good Hope, is quite 
a distinct species from the true Nireus of the west coast of Africa. 
The distinctions were clearly pointed out to me by Dr. Boisduval, 
who had placed the name Charopus to it in his cabinet about four 
years ago. This name having been lately used by Mr. Westwood 
for a species in my brother’s collection, the name cannot be now 
used for the Cape insect. I therefore propose for it the name of 
Lyeus. It may be known from P. Nireus by its generally smaller 
size, its cilia spotted with white, the apex of the anterior and disc 
of the posterior wigs below clouded with silvery gray, and by 
the band of the posterior wings not being macular. This band is 
wanting in the females, the whole of the disc and outer margin 
of the posterior wings, and the apex of the anterior being clouded 
with light brown with silvery reflections. Only having seen im- 
perfect specimens, when I drew up the catalogue of the Papilionide 
in the collection of the British Museum, T was afraid to sepa- 
rate the Cape specimens, not being then aware that Dr. Boisduyal, 
from the examination of numerous perfect specimens, had become 
Ann. & Mag. N. Hist, Vol. xvi. 
