528 
XANTHODISCA; PARDALEODES. By Dr. C. Aurivillius. 
aurea. 
hollandi. 
vibius. 
reg a. 
sierrae. 
C. aurea Ham. Bruce (79 f, g) is very similar to the preceding and chiefly only differs by the dark 
under surface and the somewhat smaller spots of the forewing. In the $ the spots of the forewing are white 
instead of yellow. Congo District: Kassai. 
C. hollandi B.-Bak. is unknown to me, but it evidently belongs to this group. The description says: 
forewing blackish with a small spot at the end of the discal cell; two smaller ones behind each other near 
the apex behind the veins 8 and 7, a dot behind vein 6 nearer at the margin, another one nearer at the base 
behind 5, and one more behind 4 more proximad; on the hindwing the base and the costal margin as far 
as vein 6 and the margin blackish; the other parts lemon-coloured, at the margin faintly orange. Under 
surface: forewing blackish, yellowish along the costal margin and in the apical part; all the spots of the upper 
surface are present and encircled with black; hindwing lemon-coloured with a narrow brown costal margin 
and a brown spot at the apex; a brown dot at the apex of the discal cell, with a brown spot on each side (in 
front and behind); two dots on the basal side of the apical spot; a spot in the centre of the fold and a 
dot in area 2 near the margin; nearly all the spots are pupilled yellow. Expanse of wings: 38 mm.“ Toro: 
Fort Portal. 
17. Gattung: Xanthodisca gen.nov. 
The forms of this genus have hitherto been ranged among the genus Pardaleodes. But in order to be able 
to define this genus, I was forced to establish a new genus for it. All the forms are very closely allied and 
differ from Pardaleodes also by the shape, colour and marking of the wings. In the structure of the veins 
they are distinguished by vein 2 of the forewing rising far before the centre of the cell. Hind tibiae with 
4 spurs. Antennae long, projecting far beyond the centre of the forewing, antennal club elongate with a 
moderately long tip. Last palpal joint short, conical, little projecting. Vein 2 of the forewing rises near the 
base of the wing, 4 almost in the centre between 3 and 5, 11 is well separated from 12. Vein 5 of the 
hindwing is distinct. Forewing short, triangular, with an almost straight margin. Hindwing above uni-coloured 
black without markings. Forewing black with a large orange or reddish discal area. 
X. vibius Hew. (79 f). The large yellow discal area of the forewing neither reaches to the costal margin 
nor to the anal margin and is posteriorly defined by the vein 1; it consists of a long triangular spot filling up 
almost the whole discal cell, a similar though smaller spot in 3 covering the whole basal half of area 3, a long 
rectangular spot in 2 extending just as far towards the margin as the spot in 3, but not quite reaching to the 
base of area 2, and of an almost just as large spot in 1 b. The base of area 2 is in the $ filled up by a blackish- 
grev mealy spot, and behind the base of rein 1 there is a similar black mealy streak. Gabun to Ruwenzori and 
the Rutchuru-plains. $ unknown to me. —- rega Mab. is described as follows: ,,Forewing black, in the centre 
reddish-yellow; the black colour on all the margins forms a regular marginal band despatching below the apex 
a square black spot which separates three apical yellow spots; a small, elongate, black spot at the base. 
Hindwing black with a greyish-yellow lighter part between the veins. Under surface similar though lighter. 
Hindwing between the veins with a bent yellowish transverse band which is more distinct than above. Body 
above blackish. Abdomen and palpi yellowish. Sierra Leone.“ Tin's form seems only to differ from vibius 
by the small yellow preapical spots on the forewing and the row of spots on the hindwing. — sterrae Holl. 
(79 f) is an insignificant form of rega only different by the large yellow discal spot of the forewing reaching 
to the anal margin. Hinclwing with or without spots. Sierra Leone. 
18. Gattung: Pardaleodes Bilr. 
Antennae long, projecting beyond the apex of the discal cell of the forewing, the moderately long tip 
turned down. Third palpal joint short, slightly projecting beyond the bristles of the second joint. Margin 
of forewing distinctly bent. Vein 2 of the forewing rising at or behind the centre of the cell, vein 11 is bent 
towards vein 12. Vein 3 of the hindwing from the posterior angle of the discal cell, vein 5 distinct, midway 
between 4 and 6. Hind tibiae with 4 spurs. 
Wings above black with yellow areas or spots. Hindwing sometimes above without markings. The 
species can be divided into two groups, the first of which is very similar to Xanthodisca by the marking, but 
it shows the very same structure of the veins as Pardaleodes. 
Review of t h e S p e c i e s. 
A. Hindwing above uni-coloured black without distinct markings. 
1. Forewing above with a broad yellowish-red or orange-yellow transverse band reaching or almost reaching 
to the costal margin. P. fan. 
