biostudies-literatureUnknown13Dai C<h4>Background</h4>The spider genus <i>Trilacuna</i> Tong & Li, 2007, currently comprises 32 species known from China, of which 15 species are from Yunnan and one species, i.e. <i>T. wumanshan</i> Tong, Yang & Zhang, 2023 is recorded from the Nangunhe Nature Reserve, Yunnan.<h4>New information</h4>Two new <i>Trilacuna</i> species, <i>Trilacuna jimengi</i> Dai & Tong, sp. nov. (♂♀) and <i>Trilacuna nangunhe</i> Dai & Tong, sp. nov. (♂♀), are described, based on specimens collected from the Nangunhe Nature Reserve, Yunnan Province. Morphological descriptions and photomicroscopy images of the new species are given.Biodiversity data journale175820https://www.ebi.ac.uk/biostudies/studies/S-EPMC12673334biostudies-literatureTwo new species of the genus &lt;i&gt;Trilacuna&lt;/i&gt; Tong &amp; Li, 2007 (Araneae, Oonopidae) from the Nangunhe Nature Reserve, Yunnan Province, China.PMC12673334Yang ZDai CTong YYang TfalseTwo new species of the genus &lt;i&gt;Trilacuna&lt;/i&gt; Tong &amp; Li, 2007 (Araneae, Oonopidae) from the Nangunhe Nature Reserve, Yunnan Province, China.<h4>Background</h4>The spider genus <i>Trilacuna</i> Tong & Li, 2007, currently comprises 32 species known from China, of which 15 species are from Yunnan and one species, i.e. <i>T. wumanshan</i> Tong, Yang & Zhang, 2023 is recorded from the Nangunhe Nature Reserve, Yunnan.<h4>New information</h4>Two new <i>Trilacuna</i> species, <i>Trilacuna jimengi</i> Dai & Tong, sp. nov. (♂♀) and <i>Trilacuna nangunhe</i> Dai & Tong, sp. nov. (♂♀), are described, based on specimens collected from the Nangunhe Nature Reserve, Yunnan Province. Morphological descriptions and photomicroscopy images of the new species are given.2025-01-01T00:00:00Z20252026-05-22T03:25:16.82Z2026-05-22T03:16:08.537ZS-EPMC126733344134718410.3897/BDJ.13.e175820