Novelo-Gutiérrez Rodolfo, Sites Robert W
Instituto de Ecología, A.C. Red de Biodiversidad y Sistemática. Carretera Antigua a Coatepec 351, El Haya, 91070 Xalapa, Veracruz, MEXICO.
Zootaxa. 2019 Nov 20;4700(3):zootaxa.4700.3.6. doi: 10.11646/zootaxa.4700.3.6.
The larva of Phaenandrogomphus tonkinicus (Fraser, 1926) is described for the first time based on several F-0 larvae collected in Chiang Mai and Nan provinces of Thailand. The larva of P. tonkinicus differs from that of P. asthenes Lieftinck, 1964 by having the 3rd antennomere mesal margin strongly convex, 4th antennomere vestigial and dome-like, postclypeus thick and shelf-like, S8 lacking a posterolateral spine, and cerci usually shorter than the epiproct. New Thailand province records of P. asthenes also are provided.
基于在泰国清迈和难府采集的几只F-0幼虫，首次描述了东京翡蛉（Phaenandrogomphus tonkinicus (Fraser, 1926)）的幼虫。东京翡蛉的幼虫与1964年利夫廷克描述的柔弱翡蛉（P. asthenes Lieftinck）的幼虫不同，其第三触角节的内侧边缘强烈凸出，第四触角节退化且呈圆顶状，后唇基厚且呈搁板状，第八腹节没有后外侧刺，并且尾铗通常比肛上板短。还提供了柔弱翡蛉在泰国新的省份记录。
