322 
LETHE. By H. Fruhstoreer. 
sumatren¬ 
sis. 
borneensis. 
durena. 
christophi. 
hanako. 
mataja. 
vanelia. 
diana. 
consanguis. 
celeja. 
whiteleyi. 
L. darena, the most richly coloured and most pronouncedly sexually dimorphic species of the genus, 
inhabits the Macromalayan region; already known from the three large Sunda Islands, its discovery on the 
Malay Peninsula will be only a question of the exploration of the mountainous regions, for it is only in these 
that this rare species seems at home. — sumatrensis Stgr. (98 d misprinted sumatrana ) in the $ nearly ap¬ 
proaches that of borneensis (98 e) and bears a broad yellow band, which becomes darker towards the hinder angle, 
shows a tendency to break up into round spots, and is proximally curved at the end. Forewing in addition 
with three light yellow subapical spots, of which the upper two are very small. Upper surface of the $ tinged 
with yellow-brown to beyond the cell. Locality the Battak Plateau in North-East Sumatra, where the species 
occurs all the year round. — borneensis Stgr. (98 e) differs from sumatrensis in the above in that the reddish 
ochre-coloured submarginal shading stops at the cell of the hindwing and does not enter it. The six wedge- 
shaped antemarginal patches of the forewing essentially larger, under surface differing considerably in the 
yellow subanal spot of the fore wing being longer than broad and the longitudinal bands of the hindwing much 
broader and darker cocoa-brown. The much larger ocelli are placed in a lighter distal area and are margined 
with lighter yellow. $ beneath decidedly approaching the pattern and colouring of chandica, with the same 
median nose-shaped marking, which is distally covered with yellowish longitudinal stripes. Ground-colour 
reddish brown with grey-violet tinge. The oblique band of the forewing very broad beneath also and pale straw- 
yellow. The habitat of this most beautiful of all the Lethe is Mt. Kina Balu. —- darena Fldr. analogous to 
sumatrensis in habitus and in the character of the colouring, but the submarginal light area on the upperside 
of the hindwing, as in borneensis, only extends to the cell-wall. Both wings beneath traversed by darker brown 
longitudinal bands, the ocelli more filled up with black and more distinctly white-pupilled. $ differing con¬ 
siderably from the two preceding races in the essentially narrower transverse band of the forewing, which is 
pure white on both surfaces, only extends to the submedian and before this has already a rounded patch separated 
off. Hindwing above lighter and brighter red-brown than in borneensis with beautiful yellow bordering to 
all the ocelli. Very rare on Java, found by me only in the west of the island, and there only on Mt. Gede. 
c) With sexual spots on the upperside of the hindwing. 
L. christophi Leech, hitherto only known from Omishan in West China, was discovered by my collector 
in Formosa, so that there are now two races to register: christophi Leech (vol. 1, b. 83, pi. 29 e), with very large 
glossy sexual spot on the hindwing, flying in July and August; and hanako Fruhst. (98 e), with somewhat 
smaller scent-area on the hindwing and beneath larger ocelli and stronger longitudinal bands. Flies in Sep¬ 
tember and'October, at about 1000 ft. Formosa. 
L. mataja Fruhst. (99 a), a completely isolated species without near allies and easy to recognize by 
the almost deep black ground-colour, a white oblique band on the forewing running as in verma Roll, and a 
tuft of long, black, glossy hairs on the upperside of the hindwing, set between the middle and lower medians. 
Hindwing with the ocelli showing through from the underside. Under surface: black-brown, band somewhat 
widened, purer white than above. Three subapical ocelli, of which the anterior is the smallest. Hindwing 
with a row of 5 ocelli, of which the upper four are placed close together, whilst between the fourth and the 
bi-pupilled ocellus there is a large space, as the area between the middle and lower medians remains free, i. e. 
encloses no eye-spot. Both the wings are traversed by a thin brown antemarginal and a broader, light grey 
submarginal band. The fore wing bears two longitudinal bands in the cell, the hindwing a fairly straight sub- 
basal band and a sharply angled median band. At the apex of the cell there is further a light-dotted streak. 
All these bands are dark brown. The yellow-ringed ocelli show also a pale violet-grey border. Upper sur¬ 
face of the hindwing below the ocelli with a long tuft of deep black, glossy radiating hairs, in which mataja 
differs from all its allies of the lanaris-baucis-naga group. $ somewhat larger, paler than the J 1 , the white band 
of the forewing about twice as broad. Under surface paler with somewhat larger ocelli. Rare on Formosa. 
Type from the Drachen Lake, afterwards received also from Polisha and Lehiku. Flies in September and 
October. 
L. sicelis Hew. (vol. 1, p. 84, pi. 31 b) inhabits the main island of Japan, whilst on the southern island 
of Kiushiu a distinct race occurs: vanelia Fruhst., characterized by the absence of the grey-or blue-violet bor¬ 
dering to the ocelli on the underside of the hindwing, which is always present in examples from Hondo and 
which both Hewitson and Seitz distinctly figure. 
Group Rangbia Moore. 
Both wings with sexual spots on the upper surface. 
L. diana Btlr., described from Hakodate, on the north island of Japan, where an extremely elegant 
form occurs, which is very rare in collections, of small size and with a distinct band traversing the entire under 
surface of the forewing, which is violet in the yellow-white in the $. — consanguis Btlr. refers to an aber¬ 
ration from Nikko on Hondo with large red foreground to the ocelli, whilst the normal form from Hondo, 
represented in vol. 1, pi. 31 a, is still without a name; I propose for it celeja subsp. nov. —- whiteleyi Btlr. is the 
