CUPID0. By Dr. C. Aurivillius. 
475 
**. Discal spot 4 of forewing rounded off like the others. Hindwing beneath without the black marginal 
spot in area 1 c. — Wings above uni-coloured brownish-grey, with narrow black median spots 
and an indistinct black marginal spot in area 2 of hindwing. C. neavei. 
B. Forewing beneath without submarginal streaks and marginal spots. 
a. Hindwing without a tail; beneath without a marginal spot in area 1 c. —$. Wings above light greyish- 
blue with a small marginal spot in area 2 of the hindwing. C. mashunus. 
p. Hindwing at vein 2 with a tail, on both sides with a black, green-scaled spot in area 1 c. — Wings 
above of a bright coppery brown. C. cupreus. 
All the <$<$ have male scales (androconia) of the usual shape and with a broadly rounded off apex. 
The $$ of all the species are above similarly coloured and marked. They are above light blue with dark veins, 
at the costal margin on both wings as far as the discal cell brown and with a broad dark marginal band which, however, 
is generally more or less brightened up by the white bordering of the large roundish marginal spots. The median spots are 
large and very distinct. The dark submarginal band is distinct also in case it be absent beneath. 
C. giganteus Trim (74 a) is the largest African species of Cupido and is known from the Mashona giganteus. 
Land, Rhodesia, and the district of the Victoria-Nyanza. 
C. stormsi Robbe (74 b) is very similar to the preceding, but at once discernible by the marks stated stormsi. 
above. Southern Congo District and on Lake Tanganyika. 
C. rhodesensis(ae) B.-Bak. Only the male is known. The submarginal line of the under surface is dull rhodesensis. 
grey or yellowish and indistinctly defined. North-Eastern Rhodesia. 
C. delicatus B.-Balc. (74 b) is very similar to rhodesensis, but it also differs in the submarginal line delicalus. 
beneath being more distinct and blackish. The $ is above also at the hind-margin of the hindwing broadly 
darkened and sometimes almost totally brown. Nyassa Land and Portuguese East Africa. 
C. mashunus Trim. The is above very similar to the two preceding species. Mashona Land. mashunus. 
C. peculiaris Rogenh. (74 d, e) is the species of this group, which was known first, and distinguished peculiaris. 
from the other species by the dark upperside of the <$. Distributed from Rhodesia, Nyassa Land and Manica 
Land to Mombasa and Nairobi in British East Africa. 
C. neavei B.-Bak. can only be distinguished from C. peculiaris by the above-mentioned marks. Nyassa neavei. 
Land and Portuguese East Africa. 
C. cupreus Neave (74 c) is a species well distinguished by the small tail of the hindwing, the absence cupreus. 
of the markings at the margin of the forewing beneath, and by the colouring of the upper surface in the 
North-Eastern Rhodesia. 
Fifteenth Group, 
Euchrysops- group. 
Bethune-Baker has published this year a most excellent monography on the African species of this 
group, in which he distributes them among two ,,genera“ Neochrysops B.-Baker and Euchrysops Bull. In spite 
of my having carefully compared the descriptions of the two genera with each other, I have not succeeded in 
finding any solid difference between these ,,genera“. Nor does the author state any differences with respect 
to the genital organ of the $ and the androconia, and the comparison of the figures neither supplies any clues 
for the separation of the genera. The liarpagines may apparently differ amongst the species of the same genus 
just as much as they do between the species of the two genera; the same is the case with the androconia. 
Butler’s genus Euchrysops , moreover, is something different from that of Bethune-Baker. Butler 
characterizes his genus: ,,Secondaries invariably tailed’ 1 and .,eves cpiite smooth instead of hairy”. Though 
Bethune-Baker also says in the description of the genus: ,,A short fine tail from the end of vein 2“, yet 
he places several tailless species, such as albistriatus and malathana, to Euchrysops. He also reckons some 
species with hairy eyes among this genus. As I myself was neither able to discover any essential differences 
between ,, Euchrysops^ and Neochrysops, I was forced to combine them here in one group with the exception of 
the species of the fourteenth and sixteenth groups. 
Eyes hairy or bare. Frons white with two rows of black bristles. Palpi covered with appressed scales, 
generally with none or but few black bristles on the underside of the second joint. Forewing with 11 veins (vein 
8 being absent), vein 11 being quite separate and almost straight. The marking beneath is very characteristic 
and rather similar in all the species. Forewing as far as the apex of the discal cell without markings; a white- 
edged, brown transverse streak or spot at the end of the discal cell; discal spots generally roundish, encircled 
with white and contiguous; submarginal streaks and marginal spots distinct and bordered with white. Hindwing 
without basal dots, but invariably with 3 round, jet-black subbasal dots encircled with white in 1 a, 7, and 
