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. 2024 Nov 5;5536(3):492-500.
doi: 10.11646/zootaxa.5536.3.9.

A survey of the Sumatran Ctenidae (Araneae). 4. A new species of Acantheis Thorell, 1891 with unique copulatory organs morphology

Alexander A Fomichev  1 , Mikhail M Omelko  2 , Yuri M Marusik  3
Affiliations

A survey of the Sumatran Ctenidae (Araneae). 4. A new species of Acantheis Thorell, 1891 with unique copulatory organs morphology

Alexander A Fomichev et al. Zootaxa. .

Abstract

A new species, Acantheis kazantsevae sp. nov., is described from Sumatra Island (Indonesia) on the basis of both sexes. The male of the new species possesses unusual palp with a twisted tegular apophysis having two arms: a large boomerang-shaped anterior one and a posterior one with a deep cavity. Diagnosis, description and illustrations are provided. Systematic placement of the new species within Acantheis Thorell, 1891 is discussed.

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