Acanthocorona sattleri, Mey & Léger & Lien, 2021

Mey, Wolfram, Leger, Theo & Lien, Vu Van, 2021, New taxa of extant and fossil primitive moths in South-East Asia and their biogeographic significance (Lepidoptera, Micropterigidae, Agathiphagidae, Lophocoronidae), Nota Lepidopterologica 44, pp. 29-56 : 42-43

Acanthocorona sattleri sp. nov. Fig. 25A, B

Material.

Holotype ♂, Burmese amber, BUB 570, ( PM); paratype ♂, Burmese amber, James Ziegras Collection, JZC - Bu 203 ( AMNH).

Etymology.

The species is named in honour of Klaus Sattler, London, specialist of Microlepidoptera in the Natural History Museum, London, for his support and help during many visits of the first author to the Microlepidoptera collection in London.

Preservation.

Completely preserved in a flat, rounded and polished piece of amber, numerous small bubbles of air and two, minute midges ( Diptera ) present; wings overlapping, head, legs and postabdomen clearly visible in ventral view.

Description.

Length of forewings 2.9 mm, antennae light brown, very short, about 0.3 of forewing length, with 21 flagellomeres.

Male genitalia (Fig. 25 ): segment IX rounded dorsally, segment X with short, bifid median prolongation in latero-dorsal view (Fig. 25A ); rod-like spine long, accompanied by shorter spines on ventral apex of valvae, apical margin of valvae with row of denticules, additional denticules before margins; basal spikes of valvae paired, about half the length of valvae (Fig. 25B ). Phallus not extruded.

Figures

Figures 18 - 25. Acanthocorona spp.: 18 - 20. A. skalskii sp. nov.: 18. Wing venation; 19. Male genitalia, ventral; 20. Male genitalia, dorsal; 21. A. muelleri sp. nov., male genitalia, ventral, 22. A. bowangi sp. nov., male genitalia, ventral; 23. A. wichardi sp. nov., ventral; 24. A. kuranishi sp. nov., ventro-caudal, 25. A. sattleri sp. nov., male genitalia; A - ventro-lateral, B - dorso-lateral. Scale bars: 1 mm (18.); 0.5 mm (20., 22., 23., 25.).