Acanthosia kruegeri, Volynkin, 2025

Volynkin, Anton V., 2025, Contribution to the knowledge of the Afrotropical Archithosia Birket-Smith generic complex with the description of a new genus, nineteen new species and a new subspecies, and introduction of new combinations (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Ecologica Montenegrina 82, pp. 1-63 : 14-15

publication ID	https://doi.org/10.37828/em.2025.82.1
publication LSID	lsid:zoobank.org:pub:35522E72-ABB8-47C1-AB07-3B7BF7391755
DOI	https://doi.org/10.5281/zenodo.16961897
persistent identifier	https://treatment.plazi.org/id/1D5087DA-FFED-2140-FF1E-F9C34488FE67
treatment provided by	Felipe
scientific name	Acanthosia kruegeri
status	sp. nov.

Treatment

Acanthosia kruegeri View in CoL sp. n.

https://zoobank.org/ urn:lsid:zoobank.org:act:0F8DE63F-EDBF-4F82-B9FE-F1E4881791A2

( Figs 21 View Figures 16–30 , 105 View Figures 102–105 )

Type material. Holotype ( Figs 21 View Figures 16–30 , 105 View Figures 102–105 ): male, [ Equatorial Guinea, Bioko Island ] “Fernando Po: | Moka. | 28.i.–3.ii.1933. | W.H. T.Tams. | B.M.1933-39.” / QR- code label with unique ID: “ NHMUK 010914608 About NHMUK ” / “Slide | NHMUK010313061 About NHMUK ” [prepared by M. Krüger] ( NHMUK).

Diagnosis. The forewing length is 13.0 mm in the male holotype. The male genital capsule of A. kruegeri sp. n. is similar to A. pervolgata sp. n. but differs in the proximally narrower uncus, the thinner and shorter basal saccular process, and the markedly longer and thinner proximal lobe of the distal saccular process. As the vesica of the single holotype specimen was not fully everted, it is currently impossible to compare the vesica structures of the two species but in A. kruegeri sp. n. the cornutus has a remarkably broader base than in A. pervolgata sp. n.

The female is unknown.

Distribution. The new species is currently known only from its type locality on Bioko Island, Equatorial Guinea.

Etymology. The new species is dedicated to the memory of the late Dr Martin Krüger (1963– 2019), an outstanding taxonomist specialising in the African Geometridae and Lithosiina and author of the generic classification of Afrotropical Lithosiina ( Krüger 2015). The name is a noun in the genitive case.