Tetragnatha filigastra Mello-Leitão, 1943

Castanheira, Pedro De Souza & Baptista, Renner Luiz Cerqueira, 2020, Notes on slender species of the long-jawed spider genus Tetragnatha (Araneae Tetragnathidae) with description of three new species, Zootaxa 4768 (1), pp. 43-75 : 72

Tetragnatha filigastra Mello-Leitão, 1943 nomen dubium

( Figs 16C, D )

Tetragnatha filigastra Mello-Leitão, 1943: 192 , fig. 23 (Holotype male immature, wrongly indicated as female adult, from Rio Grande do Sul, Brazil, Pe. B. Rambo coll., deposited in MNRJ 42522, poorly preserved, genital area dissected and abdomen loose, examined).

Notes. Mello-Leitão (1943) described this species as an adult female, despite the large but undeveloped palps and small chelicerae of the immature male holotype ( Fig. 16C ; Mello Leitão 1943, fig. 23). The elongated and slen- der abdomen with lateral black patches is not enough to correctly ascribe this species to T. tenuissima or other slen- der species described in this paper, thus we decided to undermine the validity of this species as a nomen dubium.

Figures

FIGURE 16. Nomina dubia: A, T. exilima female holotype, habitus lateral view (detail, left chelicera inner view). B, T. exilima holotype label. C, T. filigastra male holotype, carapace lateral view. D, T. filigastra holotype label. E, T. lactescens holotype female, habitus lateral view. F, T. lactescens holotype label.