DIE8T0GYNA. By Dr. C. Aurivillius. 
163 
of only 2—4 mm.; the fringes of both wings are dark. In the $the hind wing and the basal part of the forewing 
are dark yellow-brown above and the apical part of the forewing nearly black with white transverse band 
and 4 white subapical dots; the white transverse band runs in the direction of the posterior part of the distal 
margin, from the costal margin to vein 3 continuous and of almost uniform breadth, then with an irregular, 
almost free spot in cellule 2; cell yellow-brown with distinct black transverse markings; the postdiscal spots 
of the hindwing are filled in with black and distally sharply bounded by a lunulate black line; beneath the fore¬ 
wing is dark umber-brown, suffused with grey in the cell and only yellow at the base of cellules la and 1 b, the 
white markings as above; the greater part of the hindwing beneath is suffused with grey, the basal area 
dark brown, beyond the middle in cellules lb, lc, 2, 5 and at the apex of the cell broadly tinged with 
yellowish, distally dentate and margined with very dark grey, in the base of cellule 4 a blackish spot; the inner 
margin and the anal area are very broadly suffused with whitish grey; the postdiscal spots are black- 
grey and distally next to the lunulate line yellowish; outside the lunulate line the marginal band is first yellowish, 
then dark red-brown. Cameroons, Gaboon and Landana. 
D. conjungens Auriv. (38 f) is only known in the male. In many respects this is intermediate between conjungens. 
atrovirens and atropurpurea. Above the wings are coloured and marked quite as in atropurpurea , dark black- 
brown with blue-greenish reflection and two rows of indistinct black spots before the distal margin; in the cell 
there are two indistinct oval blackish transverse spots and a spot beyond the end of the cell; the fringes of the 
forewing are white, but those of the hindwing almost entirely dark. The under surface of both wings agrees 
very nearly with that of the $ of atrovirens ; the forewing is black-brown, at the hindmargin broadly shaded 
with yellowish grey and between the cell and the apex more or less sprinkled with violet-grey scales; the white 
subapical dots, which are indistinct or absent above, are here more distinct; the hindwing is rather uniform 
black-brown, only at the anal angle more or less suffused with violet-grey; hence the basal area is ill-defined, 
it is bounded by small grey spots in cellules 1 c, 2, 3, 5 and 6 and encloses 3 or 4 yellowish grey basal 
spots in cellules la—1 c and 7, of which the last is the largest; the oval postdiscal spots are indistinct 
and characterized by a white dot at the proximal end of each. North-West Cameroons, discovered by A. Schultze. 
D. atropurpurea Auriv. (39 a) is in both sexes very similar to D. atrovirens above, but differs quite airopurpu- 
considerably beneath. The $ differs on the upperside in the distinct white subapical dots and white fringes rea - 
of the fore wing and in two rather distinct rows of spots before the distal margin on both wings; beneath the fore¬ 
wing is broadly yellowish dark grey at the hindmargin to vein 3, otherwise in the basal area dark brown 
and in the apical part reddish brown with violet-grey scales before the apex; the underside of the hindwing is 
variegated in colouring, the ground-colour dark purple-reddish, the basal area black-brown, reddish at the 
costal margin, and with a large light yellow spot at the base of cellule 7; beyond the basal area the ground¬ 
colour is brown-red and then before the postdiscal spots again black-brown, this black-brown discal band 
is in cellule 4 connected with the basal area by a dark transverse streak; the postdiscal spots are again brown- 
red with white dots at their proximal ends and indistinct yellow spots at the distal side; the marginal band is 
darker brown-red. The $ only differs above from that of atrovirens in having the basal part of the forewing 
somewhat darker and the white transverse band directed more towards the hinder angle; beneath the ground¬ 
colour of the forewing is more uniform dark grey and the hindwing, which in markings resembles that of the 
$ but is much lighter, is only somewhat suffused with grey at the anal angle (very narrowly) and in the basal 
part of the costal margin, but in all the light parts distinctly striated or irrorated with brown, which does not 
occur in the $ of atrovirens. Cameroons. 
D. obsoleta Griinb. (39a). In the $ the wings are dark brown above with rather indistinct black mark- obsoleta. 
ings, the posterior part of both wings predominantly black with slight dark blue gloss; fringes of the forewing white, 
of the hindwing dark brown. Under surface of the forewing yellowish brown with dark brown markings, par¬ 
ticularly in the basal half; the dark transverse streaks in the cell broad, edged with blackish; beyond the cell 
a broad light brown, dark-variegated median band, anteriorly much widened and occupying nearly half the 
costal margin from the apex onwards; its distal boundary is formed by a submarginal band composed of confluent 
dark brown spots, and accompanied again distally by a curved black line; distal margin dark brown; hind¬ 
wing dark red-brown with irregular light grey-brown markings; above the cell a basal spot, in the cell itself 
an isolated dark brown, light-edged spot, behind the cell below vein 2 likewise a larger light spot; beyond 
the cell are distinguishable of the quite irregular markings only a median row of dark brown spots and a sub¬ 
marginal dentate band, both rather indistinct. The $ is unknown; but if the $ figured 38 f as amaranta $ 
belongs to obsoleta , not amaranta, as is possible, the species should be placed in the third subgroup. Uganda. 
D. mawamba Baker (38 e), as the figure shows, is near to D. atropurpurea. In the 3 the wings are black- mawamba. 
brown above, with dark blue reflection, black transverse bands, which are distinguishable also in the middle 
of the forewing, and whitish fringes on the fore wing; on the under surface the basal area of the forewing is black- 
grey, its demarcation from the lighter grey distal half sharply defined and arcuate as far as vein 1, the in¬ 
distinct postdiscal spots are distally bounded by a dark lunulate line; outside this line the distal margin 
