High species diversity of Phintella and Phintella-like spiders (Araneae: Salticidae) in Vietnam revealed by DNA-based species delimitation analyses

Salticidae (jumping spiders) usually exhibit pronounced sexual dimorphism in adult morphology, particularly body coloration and size and shape of the first legs. Consequently, the male and female from the same species might be erroneously assigned to different species or even different genera, which could generate synonymies in classification if only morphological data were used. Phintella is a species-rich genus of Salticidae, which currently exhibits 76 named species. However, the male–female counterpart is unknown for nearly half of the species. In this study, we used a molecular approach to delineate the species boundaries for Phintella and Phintella-like specimens collected in Vietnam, using morphological information as supporting data. We used three gene fragments (mitochondrial COI, 16S-ND1, and nuclear 28S) and biogeographical consideration for species delimitation. A total of 22 putative species were recognized: 18 species of the genus Phintella, one species of the genus Lechia..., , , # Title of Dataset:

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High species diversity of *Phintella* and *Phintella*-like spiders (Araneae: Salticidae) in Vietnam revealed by DNA-based species delimitation analyses.

## Description of the Data and file structure

beast_tree.nex: A final maximum credibility tree, it is generated by TreeAnnotator 1.10.4 from beast output.
alignments.nex: The concatenation of alignments of three genes used in beast: COI, 16S and 28S.

## Sharing/access Information

Links to other publicly accessible locations of the data:
Genbank accessions: LC105655-LC105663, LC105665-LC105672, OP178652-OP178891, OP204510-OP204520 and OP204522-OP204618