Yeldosia anomala, Volynkin, 2023

Volynkin, Anton V., 2023, Yeldosia, a new footman moth genus for a new species from Vietnam (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Ecologica Montenegrina 69, pp. 17-23 : 22

Yeldosia anomala sp. n.

https://zoobank.org/ urn:lsid:zoobank.org:act:47C382EA-F94E-4C09-860D-32C2353B30BA

( Figs 1, 2 , 9 , 13 )

Type material. Holotype ( Figs 1 , 9 ): male, “N-Vietnam 1600m | [border of Lai Châu and Lào Cai Provinces] Mt. Fan-si-pan(Nord) | Cha-pa, Primärurwald [primary jungle] | 22.17'' N 103.44 ''E [22°17'N 103°44'E] | 20.–30.IV.1995 | leg. V. Sinjaev [recte: Sinyaev] & | Einheim. Sammler [local collector] | Museum Witt” / “Slide | ZSM Arct. | 2019-1091 ♂ | A. Volynkin ” (MWM/ ZSM).

Paratypes: VIETNAM: 6 males, 1 female, the same data as in the holotype , ♂ preparation in glycerol, and slide No. ZSM Arct. 2019-1120 ♀ (prepared by Volynkin) (MWM/ ZSM) .

Diagnosis. The forewing length is 13.0–13.5 mm in males and 15.0 mm in the female paratype. Yeldosia anomala sp. n. ( Figs 1, 2 ) is externally reminiscent of the sympatric G. vietnamica Dubatolov, 2012 ( Figs 7, 8 ) having fundamentally different genitalia of both sexes, but differs in the darker, lead grey forewing ground colour, and the male forewing cell bearing an elongate cluster of androconial scales proximally. The genitalia of both sexes ( Figs 9 , 13 ) are described and diagnosed above under the genus Yeldosia gen. n.

Distribution. Northern Vietnam (border of Lai Châu and Lào Cai Provinces).

Etymology. The specific epithet is derived from the Latin ‘anomalus’ meaning ‘anomalous’ and refers to the unusual male genitalia structure of the new species. The name is an adjective in apposition to the generic name.

Figures

Figures 1–8. Lithosiina spp.: adults; 3, 4, 7 and 8 are non-type species of the corresponding genera. Depositories of the specimens: 1, 2, 7 and 8 in MWM/ZSM; 3 and 4 after Bayarsaikhan et al. (2017); 5 and 6 in ANHRT.

Figures 9–12. Lithosiina spp.: male genitalia; 10 and 12 are non-type species of the corresponding genera. Depositories of the specimens dissected: 9 and 12 in MWM/ZSM; 10 after Bayarsaikhan et al. (2017); 11 in ANHRT.

Figures 13–16. Lithosiina spp.: female genitalia; 14 and 16 are non-type species of the corresponding genera. Depositories of the specimens dissected: 13 and 16 in MWM/ZSM; 14 after Bayarsaikhan et al. (2017); 15 in ANHRT.