ABSTRACT The behavioural ecology of ultrasonic-singing katydids is not well understood, and the general bioacoustics, barely known for a few Neotropical Meconematinae, tends to be overlooked for species from Southeast Asia. These include Asiatic species of Phlugidini, commonly known as crystal predatory katydids. One of its genera, Asiophlugis consists of 16 species for which acoustic signals and stridulum anatomy are broadly unknown. These characters can be used to understand species boundaries. Here, we sampled Asiophlugis from five sites in Malay Peninsula and Borneo Island, recorded the acoustic signals of five species plus one subspecies using ultrasound sensitive equipment, and examined their stridulum anatomy. The calling songs of the taxa involved were documented for the first time. We found that the stridulum anatomy (e.g., tooth distributions, tooth length and tooth density) is distinct between species but less so between subspecies. In contrary, songs of different taxa are different based on acoustic parameters (e.g., pulse duration, peak frequency) and descriptive patterns, even between the subspecies. We also did not observe that song signals are more different in sympatry than in allopatry. Whether this can be generalised requires further sampling, highlighting the need for more research on the ultrasonic acoustic communication in Asiatic katydids.

中文翻译：

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Asiophlugis 水晶掠食性 katydids (Tettigonioidea: Meconematinae: Phlugidini) 的超声波歌曲和 stridulum 解剖

摘要 超声波会唱歌的蝾螈的行为生态学尚不清楚，而且一般的生物声学，几乎不为少数新热带 Meconematinae 所知，而东南亚的物种往往被忽视。这些包括亚洲物种的 Phlugidini，通常被称为水晶掠食性 katydids。它的属之一， Asiophlugis 由 16 个物种组成，其声学信号和 stridulum 解剖学广泛未知。这些字符可用于了解物种边界。在这里，我们从马来半岛和婆罗洲岛的五个地点采样了 Asiophlugis，使用超声波敏感设备记录了五个物种和一个亚种的声学信号，并检查了它们的 stridulum 解剖结构。所涉及的分类群的呼唤歌首次被记录在案。我们发现 Stridulum 解剖结构（例如，牙齿分布、牙齿长度和牙齿密度）在物种之间是不同的，但在亚种之间则不太明显。相反，不同分类群的歌曲基于声学参数（例如，脉冲持续时间、峰值频率）和描述模式是不同的，甚至在亚种之间也是如此。我们也没有观察到歌曲信号在同种中比在同种中的差异更大。这是否可以概括需要进一步采样，突出需要对亚洲猫科动物的超声声学通信进行更多研究。我们也没有观察到歌曲信号在同种中比在同种中的差异更大。这是否可以推广需要进一步采样，突出需要对亚洲猫科动物的超声声学通信进行更多研究。我们也没有观察到歌曲信号在同种中比在同种中的差异更大。这是否可以概括需要进一步采样，突出需要对亚洲猫科动物的超声声学通信进行更多研究。