254 
ACRAEA. By Dr. C. Auriyillius. 
forewing are bright sulphur-yellow; the veins of both wings very broadly edged with black at the distal margin; 
the streaks on the interneural folds are very short and thick, more like spots, and do not nearly reach the 
dewitzi. distal margin; cell of the hinclwing only with one black dot. Congo and Uganda. — f. dewitzi Auriv. 
only differs in having the median band on the upperside of the hindwing red-yellow and the white spots in 
1 b and the cell of the fore wing smaller. Congo region: Kassai. 
A. penelope differs from the following very similar species in the abbreviated streaks on the underside 
of the hindwing, which do not reach the distal margin; the cell of the forewing is sometimes unicolorous dark 
without spots, sometimes more or less diaphanous; the forewing in 1 b—6 with light or transparent spots, 
which are often united into a transverse band; the hindwing above at the base broadly darkened (occasionally 
in the $$ very slightly) and then with a red or red-yellow (occasionally light yellow) median band and 
broad black marginal band. The under surface of the hindwing is light coloured, usually yellowish, and has in 
the basal part the usual dots, 2 in cellule 7 and 1—3 in the cell. The species is very variable and the forms 
penelope. intergrade without any sharp dividing-line. — penelope Stgi. (57 b). Wings thickly scaled, ground-colour 
black; the spots in cellules 1 b—3 of the forewing small, free, rounded, red or reddish, the one in 3 often 
absent; those in cellules 4—6 are also small and form a sharply defined, whitish transparent subapical band; 
hindwing with narrow red median band, beneath light yellow with thick black streaks proximally often united 
on the veins. Specimens in which spots 1 b and 2 are larger, lighter and more or less transparent constitute 
argeniea. transitions to the following forms. Congo and Uganda. — $-ab. argentea Eltr. Spots transparent and conti¬ 
nuous, forming a transverse band, which, however, does not entirely cover the base of cellules 3—6; those 
in cellules 1 b and 2 proximally tinged with reddish; median band of the hindwing red-yellow, about 5 mm. 
in breadth; dark marginal band of the upper surface with distinct black longitudinal streaks; under surface 
exalbescens. except in the middle with silver-grey ground-colour. Uganda. $-ab. exalbescens Eltr. resembles the type-form 
in pattern, but all the red markings are replaced by yellowish white and the marginal band on the upper 
surface is as broad as in argentea, 3—4 mm. Ground-colour of the under surface yellowish white. Uganda. 
sulphures- —- $-ab. sulphurescens ah. nov. closely approaches the preceding form; spots 1 b and 2 of the forewing elon- 
cens • gate-rounded, thinly scaled with yellowish, 3—6 diaphanous; median band of the hindwing above about 5 mm. 
in breadth, of exactly the same colour as in servona ; under surface coloured quite as in servona. Very like a 
small A. servona ; but the cell of the fore wing without light spot and the marginal streaks on the under surface 
penella. abbreviated and distally pointed as in penelope. Uganda: Sesse Islands. — $-ab. penella Eltr. Forewing 
above at the base reddish almost to the apex of the cell, then with a hyaline median band about 5 mm. in 
breadth, which, however, does not cover the base of cellules 4—6, so that there is a blackish spot at the end of 
the cell: marginal band black-brown, about 2 mm. in breadth. Hindwing above only narrowly darkened 
at the base and with narrow marginal band, only 2 mm. in breadth, the red-yellow median band consequently 
much widened, in the middle about 10mm. in breadth; hindwing beneath strongly suffused with reddish in 
vitrea. the basal half and with much lighter median band. Uganda. — vitrea Eltr. Fore wing above black with sharply 
defined diaphanous transverse band about 4 mm. in breadth, which does not fully reach the base of cellules 
2—6 and is tinged with reddish in 1 a and at the proximal side of the spots in 1 b and 2; the hindwing 
w ith red-yellow median band about 7 mm. in breadth and black marginal band about 2 mm.; under surface 
derubescens. as in the type-form with the ground-colour light yellow. British East Africa. — derubescens Eltr. (57 b; as 
peneleos). Forewing above almost as in vitrea, the diaphanous spots, however, often reaching the base of cellules 
2—6; liindwlng with bright red median band, only 4.5 mm. in breadth, and black marginal band 5 mm. in breadth, 
hindwing beneath light greenish at the base and the distal margin, light yellow in the middle. Togoland. 
translucida. — translucida Eltr. (60 a) differs from the other forms in having the forewing diaphanous and only at the mar¬ 
gins and the base narrowly blackish ($) or dark grey ($); hindwing in the $ almost as in the type-form, but 
with red-yellow median band 7 mm. in breadth, in the $ very little darkened at the base and with grey marginal 
band, not sharply defined, hence almost the entire upper surface light reddish yellow. Lagos. 
pelopeia. A. pelopeia Stgr. is nearly allied to the two following species, but differs from peneleos in having 
the ground-colour of the hindwing beneath uniform yellowish, not or but little darkened at the base and the 
distal margin, and the rays on the interneural folds much longer and with the proximal ends quite free; in ad¬ 
dition the darkening of the veins on the under surface of the hindwing is much thickened into black knobs at 
the distal margin, which does not occur in peneleos, or only in a slighter degree. By this character and the long¬ 
er streaks on the under surface pelopeia can also be distinguished from parrhesia, to which it is very similar 
above. Viewed directly from above the forewing is semitransparent with black apex and margins and veins 
2—4 broadly edged with black, but when looked at very obliquely from the inside it appears quite black 
with a reddish longitudinal streak in 1 b, a small, rounded red-yellow spot in 1 b, 2 and 3 near to the distal 
margin and diaphanous spots in 4—6; hindwing red-yellow above, darkened at the base as far as veins 2 
and 5 or 6, with distinct black dots and often with free black dot in 2, 5 or 6; marginal band narrow, 
about 2 mm., black; hindwing beneath slightly tinged with grey-greenisli at the base, at the distal margin 
only somewhat darkened by the marginal band of the upper surface showing through. $ unknown to me. 
tropicalis, Congo; rare. — tropicalis Black, apparently only differs in having the under surface of the hindwing somewhat 
darker with the veins less strongly thickened and quite evidently belongs to this species. Ogowe. 
