Setechin, Bouyer, 2023

Bouyer, Thierry, 2023, The genera of the tribe Charaxini (Papilionoidea, Nymphalidae, Charaxinae), Metamorphosis 34 (1), pp. 59-78 : 67

Genus Setechin gen. nov.

urn:lsid:zoobank.org:act:88B3DA93-55C1-4400-9700-8E1EFA342F01

Type species of the genus: Charaxes nichetes Grose-

Smith, 1883.

Corresponds to the nichetes -group of Henning (1989: 380) and species-group Nichetes of Aduse-Poku et al. (2009).

Derivatio nominis. Setechin is the anagram of nichetes , the type species of the new genus.

pointed when being short, and spatulate when being

elongate.

Shape of the forewing elongated with the outer edge very sinuate and the apex clearly rounded (reminiscent of certain species of the genus Laodice ).

The brown or black markings on the upperside are composed of a cellular spot (sometimes discreet), a marked discocellular stroke, a discal series of more or less Sshaped interveinal spots, a postdiscal band (or submarginal) chevrons and a separate or contiguous marginal band at the edge of the wing of more or less conspicuous spots. The hindwing patterns are essentially composed of a discal band and a series of submarginal interveinal circles. The markings are more or less scattered, sometimes merged (depending on climatic conditions).

The underside is shiny with markings in fine reddishbrown lines. The two wings are crossed by a postdiscal dark band slightly straight and continuous.

A basically orange Charaxini with black or brown patterns on the upperside and underside. Hindwings not caudate except for some females with a tail at M3. This tail is The individual variation is strongly subject to climatic or seasonal conditions with the dark pattern on the upperside more extensive as the conditions get more humid. Females are caudate or not, sometimes even within a same population. These are dichromatic black and orange, sometimes trichromatic with the postdiscal orange part lighter, sometimes yellowish.

Early stages. The genus is linked to Uapaca foodplant (Euphorbiacae): Uapaca nitida Müll. Arg. and Uapaca kirkiana Müll. Arg. Description of early stages and illustration of final instar larva in Henning (1989: 382- 383).

The genus contains a single species which is divided into 6 subspecies.