Within the damselfly subfamily Platycnemidinae, eight species are currently recognized in South-East Asia. The final stadium larvae of only three of them have been so far described. The final stadium larva of Copera chantaburii is described and illustrated for the first time, based on reared specimens, and new provincial records both of larvae and adults of C. chantaburii are also provided. The larva of C. chantaburii can be distinguished from known species by the following combination of characters: square or almost horizontal rectangular shape of the outer lobe of the labial palp and fimbriated caudal lamellae that are stout at the base and narrow to an acute tip. The final stadium larva of Pseudocopera ciliata is redescribed with possibly diagnostic characters, such as the shape of the distal margin of the labial palp, the ratio of the length of caudal lamellae length and body length, setae on the margin of caudal lamellae and the setae on the terminal filament of the caudal lamellae.

中文翻译：

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泰国的桔梗亚科（Zygoptera：Platycnemididae），描述了Copera chantaburii Asahina 的最终体育场幼虫，1984

在豆娘亚科 Platycnemidinae 中，目前在东南亚有八个物种。迄今为止，仅描述了其中三个的最终体育场幼虫。首次基于饲养标本描述和展示了Copera chantaburii 的最终体育场幼虫，还提供了C. chantaburii 幼虫和成虫的新省级记录。C. chantaburii 的幼虫可以通过以下特征组合与已知物种区分开来：唇缘外叶呈方形或几乎水平的矩形，尾部有流苏状薄片，基部粗壮，尖端窄至锐尖。Pseudocopera ciliata 的最终体育场幼虫被重新描述，可能具有诊断特征，例如唇缘远端边缘的形状，