Architesma nyonie, Volynkin, 2025

Architesma nyonie View in CoL sp. n.

https://zoobank.org/ urn:lsid:zoobank.org:act:8150FB72-0AE6-4A65-976A-264A01E46FA6

( Figs 45 View Figures 43–52 , 115 View Figures 114–117 )

Type material. Holotype ( Figs 45 View Figures 43–52 , 115 View Figures 114–117 ): male, “ Gabon 10m | Nyonié (Lowland forest) | 0˚2'22''S, 9˚20'25''E | 23–28.viii.2019 MV Light Trap | Albert, J.-L., Aristophanous, M. | Bie Mba, J., Dérozier, V., | Moretto, P. Leg. | ANHRT:2019.17” / “ANHRTUK | 00155741” / “Slide | AV8989 ♂ | A. Volynkin ” ( ANHRT).

Diagnosis. The forewing length is 15.0 mm in the male holotype. Architesma nyonie sp. n. is externally distinct from the other taxa in the genus Architesma due to its dark brown forewing ground colour and reduced pattern consisting of two black dots (vs. an angular transverse line in other Architesma ), and is most reminiscent of species of the genus Acanthosia , but considerably larger and has a darker, greyish-brown abdomen with a pale, ochreous tip whereas the males of Acanthosia have a more unicolorous ochreous brown abdomen. Compared to species of the genus Asbolopsyche , to which the new species is also similar, A. nyonie sp. n. has a pale ochreous tip of the male abdomen, which is dark fuscous with an admixture of ochreous scales in Asbolopsyche . The male genital capsule of A. nyonie sp. n. is most similar to the recently described and externally dissimilar A. henricus ( Figs 46 View Figures 43–52 , 116 View Figures 114–117 ) but distinguished by the longer uncus, the longer editum-costa complex, the more apically tapered valvula, the proximally thicker basal saccular process, and the longer and straighter distal saccular process, which is tapered and slightly upcurved only apically whereas it is strongly medially upcurved with a gradually distally tapered distal section in A. henricus . The phallus of the new species is somewhat narrower and less medially curved than in A. henricus . In the phallus vesica, A. nyonie sp. n. differs from A. henricus in the shorter distal diverticulum lacking the dorsal subdiverticulum, and the smaller terminal cornutus.

The female is unknown.

Distribution. The new species is currently known only from its type locality in Gabon.

Etymology. The specific epithet is derived from the type locality of the new species. The name is a noun in the nominative singular in apposition.