The ecological study of synchronous firefly from the genus Pteroptyx was conducted at Sungai Rembau, Negeri Sembilan. It involved year–long sampling efforts during night time from November 2017 until October 2018. A total of 20 sampling stations were selected along 5.59 km stretch of the river with an interval ranging between 100 to 500 m. Sampling was carried out using sweeping net, randomly for one minute at each sampling station. The collected specimens were brought to the Centre of Insect Systematics UKM (CIS) for identification and reposition. A total of 1161 individuals represented by three species of firefly namely Pteroptyx tener Olivier (1148 individuals), Pteroptyx malaccae Gorham (11 individuals) and Pteroptyx asymmetria Ballantyne (2 individuals). Mostly these species were recorded on Sonneratia caseolaris. The highest percentage of firefly abundance were recorded in December 2017 (38%) while the lowest was in April 2018 (2%). Wind speed had affected significantly the firefly variation temporally while air temperature and humidity spatially affected the population of insects (p 0.05). This study helps in the monitoring of firefly population in Sungai Rembau to ensure the survival of these species.

中文翻译：

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马来西亚森美兰双溪林堡同步闪光萤火虫的丰度和物种组成

对来自 Pteroptyx 属的同步萤火虫的生态研究是在森美兰州的双溪林堡进行的。它涉及从 2017 年 11 月到 2018 年 10 月在夜间进行的长达一年的采样工作。 沿 5.59 公里的河流段共选择了 20 个采样站，间隔在 100 至 500 米之间。采样采用扫网方式，每个采样站随机采样一分钟。收集的标本被带到英国昆虫系统学中心 (CIS) 进行识别和重新定位。共有 1161 只萤火虫，分别是 Pteroptyx tener Olivier（1148 只）、Pteroptyx malaccae Gorham（11 只）和 Pteroptyx asymmetria Ballantyne（2 只）三种萤火虫。这些物种大多记录在 Sonneratia caseolaris 上。萤火虫丰度百分比最高的是 2017 年 12 月（38%），而最低的是 2018 年 4 月（2%）。风速在时间上显着影响了萤火虫的变化，而气温和湿度在空间上影响了昆虫的数量（p = 0.05）。这项研究有助于监测双溪林堡的萤火虫种群，以确保这些物种的生存。