In this study, the bactericidal properties of the wing surface of two different Psalmocharias cicada species, Psalmocharias querula (PQ) and Psalmocharias akesensis (PA), are examined based on the organization and nano-topographical characteristics of the wing nanostructure. The bacterial killing capacity of the wings was assessed by counting the colony-forming units (CFU). Atomic force microscopy (AFM), scanning electron microscopy (SEM), and contact angle measurements were utilized to reveal wings nano-topographical structures and their impact on bacterial contact-killing efficiency. The role of surface roughness parameters on bacterial cell attachments and bactericidal properties of the wings was evaluated by analysis of topography results using histogram height distribution and power spectral density (PSD) methods. It was found that the skewness and kurtosis values of the cicada wing nanopillars significantly correlate with their shear-inducing capacity, confirming the higher bactericidal activity for PQ wing surface compared to PA wing surface.

在这项研究中，两种不同的Psalmocharias cicada 物种Psalmocharias querula (PQ) 和Psalmocharias akesensis翅膀表面的杀菌特性（PA），根据机翼纳米结构的组织和纳米地形特征进行检查。通过计算菌落形成单位（CFU）来评估翅膀的细菌杀灭能力。利用原子力显微镜 (AFM)、扫描电子显微镜 (SEM) 和接触角测量来揭示翅膀纳米形貌结构及其对细菌接触杀灭效率的影响。通过使用直方图高度分布和功率谱密度 (PSD) 方法分析地形结果，评估表面粗糙度参数对细菌细胞附着和翅膀杀菌性能的作用。发现蝉翼纳米柱的偏度和峰度值与其剪切诱导能力显着相关，