402 
IOLAUS. By Dr. C. Atjrivillitjs. 
bilineata. I. bilineata B.-Bak. As only the $ of this species is known, I could not mention it in the review. 
Forewing brown with three quarters of the fold, the discal cell and the angle between the veins 2 and 4 whitish, 
proximally more or less tinged with a very light blue; hindwing brownish, the proximal two thirds covered with a 
1 ight bluish; a white submarginal line divides the broad, dark marginal band into two parts; anal spot red; a black 
marginal spot strewn with metallic scales. Both wings beneath white, forewing at the apex and margin darkened, 
with the two usual brown transverse lines; hindwing with a brown postdiscal line and a yellowish-brown sub¬ 
marginal line as far as vein 3; between vein 3 and the proximal margin a broad red band with a black dot 
in area 3 and at the anal angle; three small tails. Congo District: Makala. 
hemicya- 1. hemicyanus Em. Sharpe. To the marks of the <$ mentioned in the review we only need to add that 
nus • the hindwing is very convex at the costal margin, the wings beneath being white with the usual dark transverse 
lines and a fine transverse streak at the end of the discal cell of the forewing, and the black submarginal spot 
in area 2 and at the anal angle of the hindwing towards the base being broad reddish-yellow. Uganda. 
neavei. 1. neavei Ham. Drc. (68 h) is very much like the following species and seems only to differ by the 
formation of the first small tail of the hindwing. Cameroon. 
agues. I. agnes Auriv. <$. Frons above uni-coloured orange, below white. Tibiae and tarsi with very distinct 
black spots or rings. The blue basal area on the forewing above is very small and distally very slantingly and 
almost rectilinearly, sharply defined; it only covers the basal half of the discal cell, only reaching vein 2 and 
terminating at vein 1 and at the proximal margin about 3 mm distant from the margin. Hindwing at the costal 
margin as far as vein 7 and at the proximal margin in 1 a and 1 b black, otherwise deep blue with a very fine, 
black marginal line being feebly expanded in the area 6, and a blackish mealy spot. Both wings beneath white 
with the two usual blackish-grey transverse lines. Hindwing at the margin somewhat darkened; the postdiscal 
line of the hindwing at the proximal margin between vein 1 a and the centre of area 1 c distally broadly bordered 
with reddish-yellow; the submarginal line in area 2 passes over into the red bordering of the black submarginal 
spot and is then thickened as far as the proximal margin, reddish-yellow and decorated with some silvery bluish 
scales; anal lobe above white with a black transverse spot the proximal red bordering of which is almost entirely 
covered by the long black hair of area 1 b, beneath with a black and broad red anal spot, hindwing with 2 
small tails, at vein 3 only angled. $ unknown. Cameroon. 
belli. I. belli Hew. (68 g). A- To the marks stated in the review we may add that the mealy spot of the 
hindwing is rather small and does not extend beyond the discal cell, that the submarginal spot in 1 c is large 
and quadrangular, that in 2 being small and round; anal lobe above black, proximally red, at the margin white. 
Under surface white, postdiscal line of hindwing as far as the proximal margin black without the reddish-yellow 
bordering; the submarginal line between vein 3 and the proximal margin thickened and reddish-yellow; sub¬ 
marginal spot of area 2 large black, also on the sides broadly bordered with reddish-yellow. The $ differs above 
from the by .the blue colour of the foreAving being less extensive, at the anal margin 4 mm distant from the 
margin, the black costal margin of the hindwing reaching vein 5, the areas 1 c to 4 showing black submar¬ 
ginal streaks or spots, and the areas 1 c and 2 besides one rounded, black, postdiscal spot each. Sierra Leone 
to Cameroon. 
silanus. I. silanus Smith (68 h) is unknown to me, but it seems only to differ from belli by the marks 
mentioned in the review. The $ is described as follows: Upper surface, forewing light blue, towards the base 
grey, in the middle hued with white; apical third blackish-grey. Hindwing with the lower three quarters blue, 
lined with grey and towards the margin spotted white; costal margin and apex grey; an undulate, dark grey 
postdiscal line; anal spot black and red; broad black submarginal spots in 1 c und 2. German and British 
East Africa. 
sidus. T. sidus Trim. (68 h) differs very much from the other species. Frons almost entirely brownish-red 
with an indistinct white median line. Legs white, only the tarsi more or less spotted black. Abdomen beneath 
with an orange longitudinal fine. To the description of the under surface stated in the review we must add 
that the forewing shows a black transverse streak in 1 b near the margin and that the postdiscal line of the 
hindwing is fine and black between the veins 1 a and 2, the submarginal line, however, being there red or orange 
and thickened. <$. Wings above of a delicate light blue; the blue colour of the forewing reaches vein 4 and is 
distally almost rectilinearly defined; hindwing with a light yellow mealy spot encircled by black, and a red 
or black submarginal dot in 1 c; anal lobe almost entirely red. In the $ the blue parts of the £ are whitish- 
violet, at the base bluish; hindwing with a black costal margin, two dark postmedian transverse lines and an 
orange-red, black-pupilled submarginal spot also in area 2. South Africa, from Cape Colony to the Zululand. 
The following four forms are very closely allied to each other and form a peculiar natural group distinguished by the 
absence of the hair-pencil of the <7 forewing. The $ $ are known only of one species, whilst the <7 <7 are so much alike that- 
we may give here a collective description. Frons orange, below white. Palpi white, at the apex black. Forewing almost 
elliptical owing to the anal and distal margins being very much rounded, above black, in the basal part as far as A r ein 2 (or 3) 
