Abstract：
We here propose a species group within the genus Platydracus, the brachycerus group, that is very likely associated with termites and includes three known species: Platydracus brachycerus Smetana & Davies, 2000; Platydracus juang Smetana, 2005; and Platydracus donnyi Rougemont, 2015. We also describe three new species belonging to this group, all from China: P. smetanai sp. n. (Zhejiang, Anhui, Hunan, Guangxi), P. gracilis sp. n. (Guangxi) and P. paragracilis sp. n. (Yunnan). Platydracus juang is newly recorded from Hunan, Guangxi, Guangdong and Hainan provinces. A key to species of the Platydracus brachycerus group is provided.
摘要：
我们在这里提出了鸭嘴兽属中的一个物种群，短节组,这很可能与白蚁有关，包括三个已知的物种：短尾龙和戴维斯，2000;PlatydracusjuangSmetana,2005年；和PlatydracusdonnyiRougemont，2015.我们还描述了属于该组的三个新物种，全部来自中国：P.smetanaisp。n.(浙江，安徽,湖南,广西），P.gracilissp.n.(广西)和副甘草。n.(云南)。Platydracusjuang是来自湖南的新记录，广西,广东省和海南省。提供了短颈桔梗属物种的关键。
