Description of a new Eukoenenia (Palpigradi: Eukoeneniidae) and Metagonia (Araneae: Pholcidae) from Brazilian caves, with notes on their ecological interactions

Rodrigo Lopes Ferreira; Maysa Fernanda V. R. Souza; Ewerton Ortiz Machado; Antonio Domingos Brescovit

doi:10.1636/Ha11-03.1

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1 December 2011 Description of a new Eukoenenia (Palpigradi: Eukoeneniidae) and Metagonia (Araneae: Pholcidae) from Brazilian caves, with notes on their ecological interactions

Rodrigo Lopes Ferreira, Maysa Fernanda V. R. Souza, Ewerton Ortiz Machado, Antonio Domingos Brescovit

Author Affiliations +

Rodrigo Lopes Ferreira,¹ Maysa Fernanda V. R. Souza,¹ Ewerton Ortiz Machado,^2,3 Antonio Domingos Brescovit²

¹Laboratório de Ecologia Subterrânea, Setor de Zoologia, Departamento de Biologia, Universidade Federal de Lavras, Lavras, Minas Gerais. CEP 37200-000, Brazil drops@dbi.ufla.br
²Laboratório de Artrópodes, Instituto Butantan, Avenida Vital Brazil, 1500, 05503-900 Butantã, São Paulo, SP, Brazil
³Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Brazil

The J. of Arachnology, 39(3):409-419 (2011). https://doi.org/10.1636/Ha11-03.1

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Abstract

Palpigradi comprises the most poorly known order within the Arachnida; hence, information regarding their biology and behavior is quite scarce. We document an interaction between a palpigrade of the genus Eukoenenia being preyed upon by a spider of the genus Metagonia in the Gruta do Vale, a cave in the municipal district of Felipe Guerra (Rio Grande do Norte, Brazil). The entire prey recognition and capture process by the Metagonia is described in full detail. Both species involved, Eukoenenia potiguar n. sp. and Metagonia potiguar n. sp., are also described. Metagonia potiguar n. sp. is the first Brazilian cave-dwelling Metagonia to be described.

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Rodrigo Lopes Ferreira, Maysa Fernanda V. R. Souza, Ewerton Ortiz Machado, and Antonio Domingos Brescovit "Description of a new Eukoenenia (Palpigradi: Eukoeneniidae) and Metagonia (Araneae: Pholcidae) from Brazilian caves, with notes on their ecological interactions," The Journal of Arachnology 39(3), 409-419, (1 December 2011). https://doi.org/10.1636/Ha11-03.1

Received: 19 January 2011; Published: 1 December 2011

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