Division of Science Education and Institute of Science Education; Jeonbuk National University; 54896; Jeonju; South Korea.
Zootaxa. 2023 Jun 8;5301(1):124-136. doi: 10.11646/zootaxa.5301.1.6.
A new species of Collembola, Ptenothrix koreanensis sp. nov., is described and illustrated based on specimens from South Korea. It was found in a coniferous forest dominated by the Korean pine Pinus koraiensis Siebold & Zuccarini. Ptenothrix koreanensis sp. nov. is characterized by a peculiar color pattern in which most of its median dorsal side of the large abdomen is plain milky white. This new species also has the formula of 1, 1, 2, 2, 1, 3 of median spiny chaetae on the clypeal area of the head, and the formula of 6, 5, 5, 4 of prelabral and labral chaetae. These characteristics make it easy to distinguish the new species from other two possibly related species, P. ciliophora Yosii & Lee and P. saxatilis Yosii & Lee. Apart from these characteristics, the new species can also be separated from another possibly related species, P. higashihirajii Yosii, by the morphology of ps1 and pi2 chaetae on the small abdomen of the female. An identification key for the East Asian species of Ptenothrix is also provided.
一种新的弹尾目昆虫，即 Ptenothrix koreanensis sp. nov.，是基于来自韩国的标本描述和说明的。它是在以朝鲜松 Pinus koraiensis Siebold & Zuccarini 为主的针叶林中发现的。Ptenothrix koreanensis sp. nov. 的特征是一种特殊的颜色模式，其大部分大腹部的中线背面是纯乳白色。这种新物种还具有头部唇区中线刺刚毛的 1,1,2,2,1,3 公式，以及前唇和唇区刚毛的 6,5,5,4 公式。这些特征使其容易与其他两种可能相关的物种，即 P. ciliophora Yosii & Lee 和 P. saxatilis Yosii & Lee 相区别。除了这些特征之外，新物种还可以通过雌性小腹部的 ps1 和 pi2 刚毛的形态与另一种可能相关的物种 P. higashihirajii Yosii 相区别。还提供了东亚 Ptenothrix 物种的鉴定钥匙。
