378 
PSEUDALETIS. By Dr. C. Attrivillitjs. 
silenus. 
corax. 
ficedula. 
sharpei. 
subornata. 
dermaptera. 
**. The transverse line of the hindwing beneath almost coherent and formed of straight, black transverse 
streaks bordered with white at least in 1 b and 1 c towards the base. M. subornata. 
p. Hindwing beneath at the anal angle with three large, red, contiguous sub marginal spots in the areas 
1 b, 1 c and 2; the transverse line is black, bordered with white and continuous, but it only reaches vein 
3 or 4. M. dermaptera. 
M. silenus F. (68 a). Wings above black, at the base as far as the apex of the cell and in the basal 
part of the areas 1 a to 2 on the forewing and 2 to 6 on the hindwing of a bright blue; the blue colour 
in the $ less extensive than in the before the margin between the veins 1 and 7 or 2 and 7 ($) with 
a yellowish-brown submarginal band being 5 mm broad in the middle. The black marginal band of the hind¬ 
wing is broad and anteriorly very much expanded, in the area 5 four (<J) to seven ($) mm broad. Hindwing 
beneath at the proximal margin speckled grey, particularly behind the cliscal line. — The larva, according 
to Lamborn, is green with white tubercles and lives on a species of ficus. Sierra Leone to the northern Congo 
District; Uganda, Equatoria and Abyssinia. — ab. $ corax Cr. According to Cramer’s figure the forewing 
above in the marginal half is one-coloured black and the hindwing above black with a bluish-grey marginal 
line. Under surface entirely as in silenus. Unknown to me; probably only an aberration of the $. ,,Guinea“. 
M. ficedula Trim. (66 e, i) only deviates from silenus by the ferruginous band on the forewing above 
reaching the margin and the black marginal band on the hind wing above being much narrower particularly 
in the $. It probably only represents the southern and eastern form of silenus. Specimens from the intermediate 
district of the middle Congo, however, are unknown to me. Angola to the Cape Colony and on the eastern coast 
to the Somali Land. — The larva lives on ficus-species. Eggs emerald-green, ball-shaped. 
M. sharpei Bale. (66 f). Wings above black; forewing in the posterior longitudinal half of the discal 
cell and at the base of the areas 2 and 3 dark blue; hindwing with a dark blue transverse band covering the 
basal part of the areas 2 to 6 and almost reaching the margin in 2. Uganda. 
M. subornata Lathy (66 f) only differs from sharpei by the marks stated in the review; in the rf, however, 
the blue colour above is more extensive; anal lobe of the hindwing above at the base liemochrome. — Larva 
on ficus-species. — Nigeria and Adamaua. 
M. dermaptera Wallengr. (66 f). Wings above as in the two last species; the blire colour, however, is 
less extensive and may sometimes be absent altogether in the §. — Pupa dark brown. -— Natal to British East 
Africa. 
5. Genus; I*seitdaletis Ham. Bruce. 
A very singular genus being quite isolated and peculiar of West Africa. The forewing compared with 
the hindwing is longer than it is usual in the Lycaenids, and convex at the margin; hindwing with two small 
tails (at 1 b and 2). The $$ have a posterior body thickened at the end and there covered with densely packed 
up hair (,,anal wool”); with these hair the deposited eggs are probably covered. 
The stages of development are unfortunately not known. All the species have a ,,mimetic” colouring 
and marking and belong to the greatest rarities of the Ethiopian lepidopteral fauna. They are, therefore, as 
yet quite insufficiently known. 
Review of the Species. 
A. Wings of a reddish-yellow or red-brown ground-colour or black with reddish-yellow markings. Hindwing 
at the anal angle with three white spots in the black marginal band. 
a. Forewing above orange-yellow, at the costal margin and distal margin narrowly, at the apex very broadly 
black with white submarginal spots in 4 to 6. Hinclwing with a black, white-spotted marginal band, 
at the costal margin not black. Ps. agrippina. 
(3. Forewing above black with an oblique, orange-yellow discal band and two orange-yellow spots in the 
cell, one at the apex and a triangular one at the base. Hindwing orange, at the costal, distal and proximal 
margins black. P. arrhon. 
B. Wings white or yellowish-white (creamy) with black markings or black with white spots. 
a. Hindwing above beyond the middle white or creamy without markings (the markings beneath sometimes 
show through above), at the margin with a black marginal band, at the costal and proximal margins, 
however, neither darkened nor spotted. 
*. The black marginal band on the hindwing above at the anal angle about 3 mm broad, anteriorly 
abruptly quickly tapering and terminating pointed at vein 6. Ps. clymenus. 
Ps. zebra. 
