Marusik Yu.M.1,2,3, Omelko M.M.4,5 2025. Redescription of a monotypic genus Arctobius belonging to a monotypic subfamily from the northern Holarctic (Aranei: Amaurobiidae: Arctobiinae) // Arthropoda Selecta. Vol.34. No.3: 387–395 [in English].
1 Institute for Biological Problems of the North, Far Eastern Branch, Russian Academy of Sciences, Portovaya Str.18, Magadan 685000 Russia.
2 Altai State University, Lenina Pr., 61, Barnaul 656049 Russia.
3 Department of Zoology & Entomology, University of the Free State, Bloemfontein 9300, South Africa.
4 Federal Scientific Center of East Asia Terrestrial Biodiversity, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690022 Russia.
5 Far Eastern Federal University, Laboratory of Ecology and Evolutionary Biology of Aquatic Organisms (LEEBAO), Institute of World Ocean, Vladivostok 690091 Russia.
Yuri Marusik: yurmar@mail.ru https://orcid.org/0000-0002-4499-5148
Mikhail Omelko: omelkom@gmail.com https://orcid.org/0000-0002-1556-6248
doi: 10.15298/arthsel.34.3.10
ABSTRACT. Amaurobius agelenoides (Emerton, 1919), a species with almost Circumholarctic distribution is redescribed in detail. It belongs to monotypic genus Arctobius Lehtinen, 1967 and monotypic subfamily Arctobiinae Leech, 1972. The male palp of this species is examined thoroughly for the first time. It possesses a unique shaped embolic division not known in the RTA lineage. Brief comments on Altellopsinae Lehtinen, 1967 are provided. A distribution map based on all known records is presented.
KEY WORDS: Araneae, monotypic genus, male palp structure, north Holarctic, cribellate spider.