IOLAUS. By Dr. C. Aurivillius. 
397 
tips; small tails black, at the apex white and at the ground with white fringes; anal lobe white with two 
black dots and a hemochrome spot speckled in a light bine, almost touching the basal side of the black dots; 
proximal margin dark greyish-brown. Under surface chalk-coloured with a faint silky lustre, forewing with 
apically dark fringes and traces of a hemochrome submarginal line; hindwing with a hemochrome postdiscal 
line being angular at the veins 6 and 3 and terminating at vein 2, where it coheres with a thin submarginal 
spot formed of hemochrome and light blue scales; anal lobe black, proximally bordered by two hemochrome 
bows and one bluish bow; within the anal spot some few black streaks and small dots, a blackish postdiscal 
line from the proximal margin to vein 2; body beneath white. British East Africa: Kikuyu. — The species 
very closely corresponds with the 2 of -silas and seems only to differ by its bright blue colour above and the 
colouring of the anal lobe. 
I. ismenias King (68 d). Both wings above white, at the base faintly lnied light bluish; forewing 
at the costal margin as far as the discal cell, at the apex (very broadly) and at the distal margin blackish; 
hindwing with a fine black marginal line, from the apex to vein 3 more or less broadly blackish-grey, in 
the area 2 with a large red submarginal spot and in area 1 c with a black one; anal lobe small, red, distallv 
scaled black and bluish; in the a small, light grey, sharply defined mealy spot covering the base of 
area 6 and the parts close at the discal cell and area 7. Both wings beneath white; forewing uni-coloured without 
markings, hindwing with a black postdiscal line broken iip into streaks, an orange-red submarginal spot in 
2 and an anal spot coloured as above. The $ is without the bluish colouring at the base on the forewing above 
and the meaty spot on the hindwing, but otherwise it hardly differs from the ty It occurs in the northern 
part of the Ethiopian region from Lagos to Nubia. 
L piaggiae Oberth. is very closely allied with ismenias and presumably represents a geographical 
race or a $-form of it. Only the $ is known; it differs from that of ismenias by the hindwing showing a broad 
orange submarginal band being also continued on the forewing as far as vein 3; besides both wings above 
are at the base broadly covered with blue, and the forewing shows a black streak at the end of the discal cell. 
Abyssinia. 
The two following, closely allied species deviate from all the species of this group mentioned hitherto by the o fore¬ 
wing having only 11 veins; they thereby belong to the ,,genus 4 ‘ Epamera H. H. Ere. They are moreover distinguished by 
the mealy spot of the hindwing above being small and white and immediately bordering on the lustrous blue ground-colour. 
The blue colour of the forewing above is distally irregularly defined, and in the areas 1 a and 1 b distinctly extended towards 
the margin. The anal lobe of the hindwing is above at the margin broad white, proximally black and not or but little scaled- 
red. The small tail at vein 3 is about 4 mm long and the margin sometimes also at vein 4 distinctly angled. Hair- 
pencil on the forewing beneath black. Forewing in the $ beneath at the proximal margin in 1 a and 1 b more or less blackish. 
I. laon Hew. (67 g). <$. Forewing above lustrous blue, at the costal margin, at the apex (very broadly) 
and at the distal margin black; the blue colour covers the discal cell, the base of the areas 4 to 2 and the 
greatest part of the areas 1 a and lb; in lb it distinctly projects towards the margin from which it 
is only separated by a black marginal band of about 2 mm width. The blue colour of the hindwing covers 
the areas 1 c to 6 and the discal cell (except the meaty spot and is separated from the margin only bj 7 
a fine black line which, however, is at the apex expanded to a width of 3 mm; a rounded, black submarginal 
spot in 1 c sends a black transverse streak into 2; proximal margin blackish-grey, scaled whitish. Wings 
beneath white; forewing at the margin broadly darkened or with three dark transverse bands being contiguous 
at the costal margin; hindwing with a broad orange submarginal line in 1 a to 6, a black submarginal spot 
in 1 b and 2 and a fine, sharply dentate black postdiscal line between the proximal margin and vein 5. 
The $ deviates above by the black marginal bands being much broader, the hindwing showing three large, 
black submarginal spots (in 1 b, l c and 2) and a thick, black, discal transverse streak in 1 c and 2, and beneath 
by the sharply defined and almost black marginal band of the forewing. Gold Coast to Gabnn. 
I. adamsi Lathy (68 d) is very much like laon (67 g) and differs only by the absence of the dark marginal 
band on the forewing beneath, and by the reddish-yellow submarginal line on the hindwing beneath being 
very fine or indistinct in the areas 3 to 6. Nigeria. — emma Suff. is probably identical with adaynsi; the figure 
only deviates by the black submarginal spots on the hindwing above being smaller and the submarginal spot 
in area 2 beneath larger. The fine, black postdiscal line on the under surface of the hindwing seems to be absent. 
Togo. 
1. inores Hew. (67 g, 68 a) is a very peculiar, very rare species reported to originate from Gabun, 
The $ differs from all the other species by the forewing beneath being clad with long black hairs along the 
whole proximal margin. Both wings above as far as the margin of a bright sky-blue, the apex of the forewing 
jet-black in a width of 11 and a length of 9 mm; wings beneath brown, forewing at the anal margin broadly 
light blue; hindwing with a black dot bordered with red in area 2, a black dot at the anal angle and an indi¬ 
stinct, dark postdiscal line; 2 extremely fine, small tails; body above bright blue. 
ismenias. 
piaggiae. 
laon. 
adamsi. 
inores. 
