On the genus Ammonius Thorell, 1899 (Mygalomorphae, Barychelidae): description of the female of A. pupulus, a new species and new distribution records

  • Hector M.O. Gonzalez-Filho Pós-graduação em Ecologia, Evolução e Biodiversidade, Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, SP13506-900, Brazil https://orcid.org/0000-0001-9614-8664
  • José Paulo L. Guadanucci Departamento de Ecologia, Evolução e Biodiversidade, Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, SP13506-900, Brazil
  • Antonio D. Brescovit Laboratório de Coleções Zoológicas, Instituto Butantan, São Paulo, SP05503-900, Brazil
Keywords: arachnid, Cameroon, Western Africa, new records

Abstract

Among the 40 genera of Barychelidae, only nine genera are described from the African continent. Thorell (1899) described Ammonius Thorell, 1899 based on a male from Cameroon. In 1965 Benoit added more information from the holotype, with detailed illustrations of the male palp bulb and the eye group. Since then, few taxonomic revisions or new species of Barychelidae have been proposed from the African continent. Ammonius can be distinguished by the strongly pronounced retrolateral lobe of the male cymbium and the aspect of the bilobed spermathecae of the female. We redescribe the holotype male of A. pupulus Thorell, 1899 and describe the female for the first time. Additionally, a new species is described: Ammonius benoiti sp. nov., from Ivory Coast. The morphology of the tarsal setae is presented through SEM photographs. New distribution records of the genus are provided.

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Published
2023-03-15
How to Cite
Gonzalez-Filho, H. M., Guadanucci, J. P. L., & Brescovit, A. D. (2023). On the genus Ammonius Thorell, 1899 (Mygalomorphae, Barychelidae): description of the female of A. pupulus, a new species and new distribution records. European Journal of Taxonomy, 861(1), 113–131. https://doi.org/10.5852/ejt.2023.861.2071
Section
Research article