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Issue: Vol. 5380 No. 6: 5 Dec. 2023
Type: Article
Published: 2023-12-05
DOI: 10.11646/zootaxa.5380.6.4
Page range: 562-576
Abstract views: 293
PDF downloaded: 15

Two new species of the spider genus Agyneta (Araneae, Linyphiidae) from Uruguay and Brazil

Sección Entomología; Facultad de Ciencias; Universidad de la República; Iguá 4225; PC 11400; Montevideo; Uruguay
Sección Entomología; Facultad de Ciencias; Universidad de la República; Iguá 4225; PC 11400; Montevideo; Uruguay
Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP); Departamento de Morfologia e Fisiologia Animal. Via de Acesso Prof. Paulo Donato Castellane km 05 14884-900 Jaboticabal; São Paulo; Brazil
Sección Entomología; Facultad de Ciencias; Universidad de la República; Iguá 4225; PC 11400; Montevideo; Uruguay
Sección Entomología; Facultad de Ciencias; Universidad de la República; Iguá 4225; PC 11400; Montevideo; Uruguay
Sección Entomología; Facultad de Ciencias; Universidad de la República; Iguá 4225; PC 11400; Montevideo; Uruguay
Araneae taxonomy Micronetinae Neotropics Pampa biome Atlantic forest

Abstract

Agyneta hum Cajade, Rodrigues & Simó n. sp. and Agyneta unguiserrata Cajade n. sp. are described and illustrated from Brazil and Uruguay based on males and females. Males of A. hum differ from the related A. adami (Millidge 1991) by having apical and posterior pocket of paracymbium, presence of dorsal tibial apophysis and the shape and surface of the cymbial tubercles. Females of A. hum differ from A. adami in having the margins of the proximal part of the scape parallel and the presence of a pit hook depression. Males of A. unguiserrata distinguished from all other congeners by having a dorsal tibial apophysis claw-shaped with denticles on the retrolateral margin. Females of A. unguiserrata distinguished from all other congeners by the presence of two elliptical processes in the epigynum. Illustrations of somatic and genital characters and distribution maps of the species are provided. These species constitute the first report of the genus for Uruguay.

 

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