N E 0 G 0 E N Y R A. By. I)t •. C. Aurivillius. 
Ill 
1. The red area on the upperside of the forewing very large, surrounding Ihe eye-spot on 
all sides, and reaching the apex of the cell and posteriorly the middle of cellule 1 b. 
' iV. natalii. 
2. The eye-spot area on the upperside of the forewing either not red at all or only in its posterior 
part; the red colour reaching neither the cell nor the middle of cellule 1 b. N. extensa. 
** The distal boundary-line of the eye-spot area on the underside of the hindwing forms no 
deep loops. 
§ The forewing above without yellow or white area or with one which posteriorly does not 
extend beyond vein 2 and proximally does not reach the cell. 
o. The distal boundary-line of the eye-spot area on the upperside of the forewing runs 
parallel with the distal margin and reaches the hindmargin, but does not join the very 
indistinct line at the proximal margin of the eye-spot area; the latter consequently 
remains open. 
1. The eye-spots with red-yellow rings. The ring of the eye-spot on the forewing 
moderately thick and distally bordered with dark. N. gregorii. 
2. The eye-spots with whitish yellow rings. The ring of the eye-spot on the forewing 
very thick and not margined with dark. N. cooksoni. 
oo. The outer boundary-line of the eye-spot area on the upperside of the forewing is 
proximally bent at or before vein 2 and joints the inner, the eye-spot area being thus 
posteriorly narrowed and closed. 
1. Smaller species; 33—37 mm. 
a. The wings beneath without red spot in the cell and without red transverse lines. 
N. duplex. 
b. The wings beneath with a red spot in the cell and with red transverse streaks 
or lines. N. rufolineata. 
2. Larger species, 39 -44 mm. 
a. Eye-spot area on the upperside of the forewing small, almost circular and only 
reaching vein 3. rY. victoriae. 
b. Eye-spot area on the upperside of the forewing large, oblong and reaching vein 2 or 
at least the middle of cellule 2. N. extensa. 
§§ The forewing above with a large ochre-yellow or white area, which surrounds the inner 
side of the eye-spot, proximally reaching the cell and posteriorly vein 1 or at least the 
middle of cellule 1 b. 
1. The patch on the forewing ochre-yellow. N. jordani. 
2. The patch on the forewing white. N. fuelleborni. 
B. The white pupils of the large eye-spot on the forewing placed vertically, so that a line drawn 
through them would intersect the hindmargin. N. parallelopupillata. 
II. The under surface of the hindwing clouded, irrorated or striated with grey and brown. 
N. hechnanni. 
N. natalii Bdv. Both wings light grey-brown, beyond the middle, with a large orange-yellow area natalii. 
which completely encloses the eye-spots. Eorevving beneath almost as above; hindwing beneath with 4 eye- 
spots in cellules 1 c, 2, 3, 4 and 6; the outer boundary-line of the eye-spot area forms in cellule 4 and in 
cellule 5 a narrow, deep loop. Damaraland; Transvaal, Zululand, Matabeleland. 
N. bera Hew. (28 g, 29a.). Wings above grey-brown; the forewing with large, bluish-pupilled eye-spot bera. 
bordered with grey-yellow and black-brown, placed in a light grey, blackish-margined area; the hindwing 
above with two eye-spots with yellowish and dark brown rings in cellules 2 and 3. Forewing beneath almost 
as above but with the eye-spot area darker and posteriorly more elongated. Hindwing beneath light grey 
with an indistinct black transverse line in the middle and sharply marked boundary-line to the eye-spot area, 
the outer line forming a deep loop in cellule 4 and in cellule 5. The eye-spots with silvery pupils, sharply 
ringed with grey-yellow and black; the hindwing usually with 5 eye-spots, one each in cellules 1 c — 4 and 
6; those in cellules 3 and 6 a little larger than the others. Nyassaland and German East Africa. 
N. ypthimoides Btlr. Similar to the preceding species, above grey-brown, the eye-spot areas lighter grey, ypthimoides. 
the one on the hindwing posteriorly open, reaching the hindmargin. The under surface of both wings black- 
grey as far as the eye-spot area; the hindwing beneath with two eye-spots in 1 c and one each in 2. 3 and 0. 
sometimes also in 4 and 5; the eye-spots with a grey-yellow and a dark ring; outer boundary-line of the eye- 
spot area slightly undulate without loops. Nyassaland and German East Africa. 
