30 
PSEUDOPONTIA. By Dr. C. Aurtvilluts. 
paradoxa-. 
cepheus. 
* The hindwing with long and distinct precostal vein. The first two joints of the palpus clothed 
below with bristles* and hairs. 
1. Vein 6 of the forewing arises from vein 7 far beyond the apex of the cell. 
Pierinae. 
2. Vein 6 of the foreAving arises almost always entirely free from the apex of the cell or is only 
very shortly stalked. Teracoiinae. 
** The precostal vein of the hindwing is entirely absent or is only very short and curved towards 
the base. The palpi beneath smooth-scaled or rarely clothed with bristles and hairs. Vein 6 
of the forewing always from 7. Coliadinae. 
1. Subfamily: Pseudopontiinae. 
To this subfamily belongs only a single genus. The characters of the subfamily are consequently identical with those 
of the genus. 
1. Genus: IPscsHiogioiitia Ploiz. 
Very delicately built butterflies with broadly rounded Avings. Head rounded; the eyes seen from above 
somewhat converging anteriorly. Antenna short, scarcely reaching the apex of the cell, filiform, Avithout club, 
but distally with the segments slightly moniliform. Palpi very short and fine. Proboscis Avell developed. The 
middle cell of both Avings small and short, scarcely reaching to more than one-third. Vein 5 of the foreAving 
from the stem of 6 and. 7, 8 and 9 wanting, 11 at first directed almost straight towards vein 12 and then 
curved. Veins 5 and 6 of the hindwing stalked, vein 7 at first cpiite straight and touching vein 8 at a 
point, then curved round in almost a right angle towards the distal margin; vein 8 from the base onward 
bending aAvay from the cell and with distinct precostal vein, curved distad. — The most peculiar of all the 
known genera of butterflies. The differences in the build of the body are so great that some authors have 
placed the genus among the Heterocera. — Tbe early stages, Avhicli are at present unknown, Avill probably 
throw light upon the affinities of the genus. 
P. paradoxa Fldr. (10a). Unicolorous white without markings; the Avings thinly scaled, semitrans¬ 
parent and in certain lights strongly iridescent. On the Avest coast of Africa, distributed from Sierra Leone to 
Angola, and especially in some parts of the Cameroons not rare; probably occurs in the Avliole of the tropical 
forest region. The sexes are cpiite similar; the females, however, are somewhat larger than the males. 
P. cepheus Ehrm. This species, which is nnknoAvn to me, possibly does not belong to this genus. It 
is described by Ehrmann as folloAvs: ,,Both Avings above pure white; forewing at the apex with a sharply de¬ 
fined, quadrate black spot and before the apex with a moderately large, triangular black spot. The ground¬ 
colour of the forewing beneath the same as above; the black spots of the upper surface showingthrough slightly; 
the basal part is slightly greenish and marmorated with fine black bars. HindAving beneath Avhite AA r itli thin 
black bars“. Captured in Liberia near Grand Sess. 
2. Subfamily: Pierinae. 
The genera which belong here may be easily recognized by the pointed, bristly or rough-scaled palpi, the long 
stalk of veins 6 and 7 of the forewing and the well developed precostal vein of the hindwing. 
The six Ethiopian genera may be readily distinguished by the folloAving characters: 
A. The foreAving at most with 11 veins. The precostal vein of the hindwing straight or curved distad. 
a) Vein 5 of the foreAving arises from the upper angle of the middle cell, the middle discocellular being 
completely absent or only very short. 
1. Club of the antenna elongated, spindle-shaped, pointed. Forewing with only 10 veins. 2. Leptosia. 
2. Club of the antenna obtuse and short. Forewing Avith 11 veins. 3. Herpaenia. 
b) Vein 5 is separated from the upper angle of the cell by a long middle discocellular, which is ob¬ 
liquely directed proximad. 
1. The forewing with only 10 veins, vein 7 being quite simple and not forked; the first subcostal 
vein (vein 9) quite straight and completely parallel with vein 8. 4. Mylothris. 
2. The forewing usually with 11, rarely Avith only 10 veins (vein 8 being extremely small or absent; 
but in this case the first subcostal vein is undulate and not parallel Avith the second vein). 
a. The middle discocellular of the foreAAnng is distinctly curved and consequently forms a right 
angle or even an obtuse angle Avith the stalk of veins 6—8. 5. Appias. 
b. The middle discocellular of the forewing is quite straight or only very slightly curved and 
hence always forms an acute angle with the stalk of veins 6—8. 6. Pieris. 
B. The forewing Avith 12 veins. The precostal of the hindAving proximally curved. 7. Phyllocharis. 
