NYMPHALIS ERITHONIUS.

Plate XV. fig. 1, 2.

ORDER: Lepidoptera. SECTION: Diurna. FAMILY: Nymphalidæ, _Swains_.

GENUS. NYMPHALIS, _Latr. God._ Papilio (Dan. Festivi), _Linn. Drury_.

NYMPHALIS MEDON. Alis dentatis, supra fuscis; anticis utrinque fasciâ

obliquâ luteâ, apice albo; posticis fasciâ violaceo-coerulescenti,

singulis subtùs punctis tribus. (Expans. Alar. 3 unc. 7 lin.)

SYN. Papilio (Nymph.) Erithonius, _Fabr. Ent. Syst._ III. 1. _p._ 82.

_No._ 255. _Latr. & God. Enc. Méth._ ix. _p._ 390. _No._ 142. (Nymphalis

Er.)

Papilio (Dan. Festivi) Eupalus, _Fabr. Ent. Syst._ III. 1. _p._ 48. _No._

148.

Papilio Harpalyce, _Cram. pl._ 145. _fig._ D. E.

Papilio (Equ. Achiv.) Medon, _Drury, App. vol._ 2. (Exclus. Syn. _Linn. &

Fabr._)

HABITAT: Sierra Leone.

_Upper Side._ Antennæ black, lighter at the tips. Head black. Thorax and

abdomen dark brown. Anterior wings dark red brown, tipped with white; but

next the shoulders of a purplish hue, with a dark yellow streak near the

tips, extending obliquely from the anterior towards the external edge.

Posterior wings also red brown; but towards the middle and shoulders of a

purplish blue, which they reflect more or less according to the position

they are held in.

_Under Side._ Palpi and breast yellow. Anterior wings olive brown, tipped

with white; but along the external edges of a hazel colour, and near the

shoulders having three round black spots on each. Posterior wings similar

to the anterior, being of a brown olive, variegated, and clouded, with

three small spots placed near the shoulders, as in the superior ones. All

the wings are a little dentated.

There are several African species closely allied to the present insect,

which was regarded by Drury as the Medon of Linnæus. I have followed the

Encyclopédie Méthodique in rejecting this reference; although it will be

seen that the Linnæan description of that insect, "alis supra nigris

primoribus fascia lutea apiceque albo; posticis disco coerulescentibus,"

does not disagree with the character of this insect.

According to Mr. Smeathman this species was taken at some distance inland

upon the continent of Africa; adding, "there are several Papiliones nearly

of this colour, that is to say, with the upper sides of the wings having a

changeable purple, and the under sides being inclinable to green, sometimes

with marks of the most beautiful crimson. The differences between them

arise so gradually, that he thinks them varieties of the same species,

some, apparently very different, being found coupled together. They are all

found congregating in the paths, and in the thick shade of a forest, ten or

a dozen in a circle round a little puddle or moist spot, and seem to like

the most gloomy places."

{30}HESPERIA IPHIS.

Plate XV. fig. 3, 4.

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