Sriranan Patipan, Songsangchote Chaowalit, Sihavong Odeth, Sayavongsa Phoukhanh, Sidavong Keolamphanh, Satakoun Lilammone, Inkhavilay Khamla, Chomphuphuang Narin, Gabriel Ray
Department of Entomology and Plant Pathology, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand.
Spider Excellence Center of Thailand, Khon Kaen University, Khon Kaen 40002, Thailand.
Zookeys. 2025 Jul 22;1247:19-43. doi: 10.3897/zookeys.1247.155398. eCollection 2025.
A new species of Southeast Asian dwarf tarantula, Sriranan, Songsangchote & Chomphuphuang, , is described from Pakse, Champasack Province, Lao PDR. The species is placed within the group of the genus , which is characterized by the absence of maxillary lyra. Sriranan, Songsangchote & Chomphuphuang, can be distinguished from other species within the group by the unique morphology of the female spermathecae and the male embolus. The habitat and natural history of Sriranan, Songsangchote & Chomphuphuang, are also discussed, with specimens found in mixed deciduous forests near Pakse, Lao PDR, inhabiting various microhabitats such as soil walls, under rocks, and within tree hollows. An updated comparison of scopula characteristics and labial cuspule counts across species highlights the variability of these traits and their limitations as diagnostic features. Molecular phylogenetic analyses and species delimitation methods (ABGD and ASAP) further support the recognition of Sriranan, Songsangchote & Chomphuphuang, as a distinct species.
一种新的东南亚侏儒狼蛛，西里拉南狼蛛（Sriranan, Songsangchote & Chomphuphuang），在老挝人民民主共和国占巴塞省巴色被发现并被描述。该物种被归入狼蛛属的一个类群，其特征是没有上颌琴形器。西里拉南狼蛛（Sriranan, Songsangchote & Chomphuphuang）可以通过雌性交配囊和雄性栓的独特形态与该类群中的其他物种区分开来。文中还讨论了西里拉南狼蛛（Sriranan, Songsangchote & Chomphuphuang）的栖息地和自然史，在老挝人民民主共和国巴色附近的落叶混交林中发现的标本栖息于各种微生境，如土墙、岩石下和树洞中。对多个物种的跗节毛簇特征和唇尖齿数量的最新比较突出了这些特征的变异性及其作为诊断特征的局限性。分子系统发育分析和物种界定方法（ABGD和ASAP）进一步支持将西里拉南狼蛛（Sriranan, Songsangchote & Chomphuphuang）识别为一个独特的物种。
