Psammitis marmoratus (Thorell, 1875) Seropian & Mumladze, 2024

Seropian, Armen & Mumladze, Levan, 2024, A new Psammitis species (Araneae, Thomisidae) from an extinct volcano in Georgia with reevaluation of the generic position of Xysticus marmoratus Thorell, 1875, Caucasiana 3, pp. 119-126 : 119-126

Psammitis marmoratus (Thorell, 1875) comb. nov.

Xysticus marmoratus Mcheidze, 1997: 163 , figs 305–306 (♂).

Xysticus embriki Hepner et al., 2011: 38 , figs 5–10 (♂ ♀).

Note.

For full nomenclatural references see WSC (2023).

Comments.

This species is transferred to this genus due to the similarity of the male palp to the generotype, which possesses an anapophysate tegulum. As for the Psammitis spp. females, there seem to be no defined characters allowing reliable separation from Xysticus spp. The generic reevaluation is also supported by the phylogenetic tree generated within the preset study, which includes Xysticus marmoratus , a species not involved in a subset of the analyses performed by Breitling (2019), who supported the recognition of Psammitis as an independent genus. Our results suggest a close relationship between X. marmoratus and Psammitis spp. (Fig. 8 ); therefore, we propose a new combination, Psammitis marmoratus (Thorell, 1875) , comb. nov. (= Xysticus marmoratus Thorell, 1875 ).

Figures

Figure 8. Phylogenetic relationships are presented by the Neighbor-Joining tree based on the mitochondrial COI barcode using the p - distance model with other default parameters provided by Mega 11. The analyses involved 13 COI nucleotide sequences of 10 thomisid species. Numbers indicate bootstrap support values from 1000 replicates.