540 
GEGENES. By Dr. C. Aurivillius. 
I append the following species unknown to me and described as Chapra, from Delagoa Bay: 
marcus. P. marcus Strd. „<$. Upper surface brown, terminal half of the fringe lighter (on the forewing 5 or 
6 times interrupted by dark); forewing with the stigma peculiar of the a jet-black, 3 to 4 mm long, 1 mm 
broad oblique streak being feebly convex towards the base, 1.3 mm distant from the posterior margin and 
extending in front to the bases of the veins 3 and 4; before the point of the stigma, at a distance of 1 mm, there 
is a light punctiform spot, and outside of the point, at a distance of more than 2 mm, there is a similar 
one; both are rather indistinct. At the costal margin, rather vertically on it, at a distance of 4 mm from 
the apex of the wing, there is a straight transverse row of three small, but distinctly marked, whitish, 
elongate punctiform spots. Hindwing with traces of two lighter punctiform spots in the anterior half of the 
marginal area, forming a transverse row vertically placed on the costal margin; these spots will probably be 
sometimes absent altogether. —- Under surface of all the wings lighter brown with a faint greenish-yellow 
reflection and with more abundant and more distinctly marked whitish dotting: forewing at the costal margin 
with three dots forming a transverse row as above; at the apex near the margin a transverse row of 2 or 3 most 
indistinct, sometimes probably absent, whitish dots; in the areas 2, 3, 4 and 5 one white punctiform spot each, 
those in 4 and 5 being quite small and situate behind the apex of the transverse row, whilst the spot in area 
2 is much larger and in an oblique position, the row formed by these 4 spots is very oblique (at the 
anterior end 2, at the posterior and 4 mm distant from the margin) and very feebly bent towards the margin. 
In the cell near the discocellular a round punctiform spot forming, together with the two posterior ones of the 
oblique row, an isosceles triangle being turned longitudinally. Behind this an indistinct whitish diffuse patch 
fills up the terminal half of the anal-marginal area. Hindwing beneath with a transverse row of 6 or 7 small, 
oblong, white punctiform spots, being almost semicircularly curved convex towards the margin, in front about 
2, behind about 3% mm distant from the margin, and with one white punctiform spot each at the end of 
the cell and, somewhat nearer to the base, in the centre between this spot and the costal margin; the light 
fringes are not interrupted by dark. Body above dark brown, beneath greyish. Antennae black, with white 
rings, the curved tip red, base of club beneath whitish. Expanse of wings: 30 mm. Length of wings 15 mm. 
Length of body 16 mm.“ 
21. Genus: (*e§»eues Hbn. 
This genus is particularly distinguished by the very short antennae not reaching to the apex of the 
discal cell of the forewing, and a very short and fine, sometimes indistinct point of the antennal club. 
The middle and hinder tibiae are finely spined. Vein 2 of the forewing rising behind the centre of the discal 
cell. Last palpal joint hidden or coniform and shortly projecting. Wings in the GS above dark without any 
light spots, forewing in the $$ generally with light discal spots in 1 b, 2, 3, 4 (5), 6, 7, (8). 
Review of t he Species. 
A. Palpi below white or whitish-grey. Hindwing beneath with an ash-grey or whitislr-grey ground-colour 
or in 2 to 7 with grey scales on a brown ground. G. nostrodamus. 
Gf. monochroa. 
G. occulta. 
B. Palpi below yellowish. Hindwing beneath with a yellow ground-colour. G. niso. 
ostroda- G. nostrodamus F. (= gambica Mab.) has been described and figured in Vol. J (p. 349, plate 88 e). 
mus. Senegambia, Sahara, Nubia. — - karsana Moore is a local race distinguished by its light brown upper surface 
and intensely lustrous whitish-grey under surface. Arabia . 
i ochroa. G„ monochroa Rebel is only known from the Island of Sokotra and is very similar to the following 
species occulta. ,,Rather squat, palpi and chest below yellowish-white, the wings in b o t- h sexes above jet- 
black without any markings; beneath somewhat more brownish, forewing with quite extinct pale dots in the 
cells 2 to 5, and three costal dots below each other. Hindwing with hardly noticeable lighter dots particularly 
in cell 6.“ 
occulta. G. occulta Trim, is very much like G. nostrodamus and presumably only a southern race of that 
species. In the $ the forewing above is blackish in the basal half, whilst in the $ it shows whitish discal spots 
like in the $ of nostrodamus. 
niso. G. niso L. (= letterstedti Wallengr., brevicornis Plotz, hottentotta Trim.). The identity of this 
species with niso L. has been doubted. But the original drawing by Clerck, which is still preserved in the 
Library of the Academy of Sciences at Stockholm and which is denominated niso in Linne’s own handwriting 
(later on published by myself in Recensio crit. Lepid. Musei Luck Ulr.), sufficiently shows that no other Hesperid 
can have been lying before Linne. The short antennae and the yellowish under surface of the hindwing (which is 
unfortunately not so well done in my plate as in the original drawing) as well as the macular marking of 
