Habitat: Sierra Leone.
Upper Side. Antennæ black. Thorax and abdomen dark brown. Anterior wings sooty brown, with two white narrow lines running along the external edges. From the shoulders runs a long white streak to the middle of the wing, and a small one at the end of it; where are also six other white streaks placed transversely, one of which is very small. Posterior wings sooty brown, having the two narrow lines continued along the external edges from the anterior wings. A broad straight white bar crosses these wings, being a little indented on the lower side; beginning at the anterior edges near the upper corners, and meeting at the body on the abdominal edges.
Under Side. Palpi, breast, sides, and legs ash-coloured; all the white parts appearing broader and larger on this side than on the upper; the lines along the external edges are broader, and the dark parts of the wings have a few whitish marks on them that are not seen on the other side. The wings are a little dentated.
The Melicerta of Fabricius and the Encyclopédie Méthodique appears to be a distinct species, having the base of the anterior wings spotted with white. I have restored Drury's name to the present insect, as it has the priority.
ANTHOCARIS ARETHUSA.
Plate [XIX]. fig. 5, 6.
Order: Lepidoptera. Section: Diurna. Family: Papilionidæ, Leach.
Genus. Anthocaris, Boisduval. Pieris, Latr. &. God. Papilio (Dan. Cand.) Drury.
Anthocaris Arethusa. Alis rotundatis integerrimis albidis; supra anticis apice maculâque, posticis strigâ incurvâ punctisque marginalibus fuscis; anticarum subtus apice fulvo. (Expans. Alar. 1 unc. 10 lin.)
Syn. Papilio (Dan. Cand.) Arethusa, Drury, Append. vol. 2. Boisduval Hist. Nat. Lepidopt. 1. p. 582. (Anthocaris A.)