Sutthinun Chanaporn, Gattolliat Jean-Luc, Boonsoong Boonsatien
Animal Systematics and Ecology Speciality Research Unit (ASESRU), Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand..
Zootaxa. 2018 Feb 7;4378(1):85-97. doi: 10.11646/zootaxa.4378.1.5.
Platybaetis bishopi Müller-Liebenau, 1980 was originally described from Malaysia only at the larval stage. We provide the first description of the imaginal stage of P. bishopi based on materials from Thailand. The imago of this species can be separated from the known species by coloration of abdominal terga and coloration of wings. A new species, Platybaetis nayokensis sp. nov., is described based on male and female imagos and larvae from Thailand. The larva of this species is mainly distinguished by medium acute spines on the posterior margin of the abdominal terga and two apical setae on the glossa, which seem to be shorter than in other species. The imago can be separated by the abdominal color pattern. The larva of this genus is adapted to live on wet rocks projecting out of water; it prefers large stones near small waterfalls or areas between two large rocks in running water.
扁蜉属毕氏扁蜉（Platybaetis bishopi Müller-Liebenau，1980）最初仅在幼虫阶段于马来西亚被描述。我们基于来自泰国的材料首次描述了毕氏扁蜉的成虫阶段。该物种的成虫可通过腹部背板的颜色和翅膀的颜色与已知物种区分开来。一个新物种，纳约扁蜉（Platybaetis nayokensis sp. nov.），基于来自泰国的雄性和雌性成虫及幼虫被描述。该物种的幼虫主要通过腹部背板后缘的中等尖锐刺以及下咽上的两根顶端刚毛来区分，这两根刚毛似乎比其他物种的要短。成虫可通过腹部颜色模式来区分。该属的幼虫适应生活在从水中突出的潮湿岩石上；它更喜欢靠近小瀑布的大石头或流水区域中两块大石头之间的区域。
