Five new species of the long-jawed orb-weaving spider genus Tetragnatha (Araneae, Tetragnathidae) in South America, with a key to the species from Argentina and Brazil

By

Castanheira, Pedro De Souza
Baptista, Renner Luiz Cerqueira.
Oliveira, Francisca Sâmia Martins

Type

Article

Date of Publication

2022-10-21

Original Publication

Evolutionary systematics

Volume

6

Series / Issue

Issue: 2

Pages

175--210

Subjects

Neotropical region , systematics , taxonomy , Tetragnathinae

Contributed by

Pensoft Publishers

Language

English

Published by

Hamburg Centrum für Naturkunde (CeNak) 2017-

Identifiers

DOI: https://doi.org/10.3897/evolsyst.6.91418

 

Abstract

Five new species in the long-jawed orb-weaving spider genus Tetragnatha Latreille, 1804 are described from South America: Tetragnatha amazonicasp. nov. (Venezuela); T. cristatasp. nov. (Argentina and Brazil); T. didoratasp. nov. (Brazil); T. oncognathasp. nov. (Brazil); and T. pradoisp. nov. (Argentina and Brazil). A key to the 21 species of Tetragnatha from Argentina and Brazil is provided, completing the revision of the genus for these countries. The female of T. cladognatha Bertkau, 1880 is redescribed and a neotype is proposed, and its male is described for the first time. Additionally, we update the taxonomic status of the following six South American species: Tetragnatha labialis Nicolet, 1849 and T. americana Simon, 1896 are considered new junior synonymies of T. nitens (Audouin, 1826); and Tetragnatha bishopi Caporiacco, 1947, T. linearis Nicolet, 1849, T. similis Nicolet, 1849 and T. sternalis Nicolet, 1849 are proposed as nomina dubia due to missing or juvenile type-material.