<i>Phenasurya daeng</i>, a new genus and species of plexippine jumping spider (Salticidae, Plexippini, Plexippina) from Thailand

We describe a new plexippine genus and new species, <i>Phenasurya daeng</i> <b>gen. et sp. nov.</b>, with a striking red face, from Thailand. Its placement within Plexippina is supported by ultraconserved element (UCE)-based phylogenomic analyses, supplemented with a broader four-gene analysis. Morphological evidence further justifies its generic status. <i>Phenasurya daeng</i> is recovered near cf. <i>Colopsus</i> and <i>Pancorius</i> but is morphologically distinct from both. These findings reveal a new red-faced lineage and settle the identity of a perplexing jumping spider.