Abstract This study provides the first biometrics analysis of exuviae from Moroccan populations of the Ibero-Maghrebian endemic dragonfly Cordulegaster boltonii algirica Morton, 1916 collected in the Rif Mountains. Among the biometric variables that were measured, tibia length was highly correlated with the exuviae body length (BL), and can, therefore, be used to calculate the BL of partially broken exuviae. The head width exhibited the smallest coefficient of variation for both males and females and, therefore, is a valuable measurement that can be used for biometric comparison of different populations. The data presented herein will be used for future comparison with other North African and European populations of C. boltonii algirica.

中文翻译：

---

Cordulegaster boltonii algirica Morton, 1916 (Odonata: Cordulegastridae) 蜕皮的生物特征

摘要 本研究首次对 1916 年在里夫山脉收集的伊比利亚-马格里布特有蜻蜓 Cordulegaster boltonii algirica Morton 的摩洛哥种群蜕皮进行生物识别分析。在测量的生物特征变量中，胫骨长度与蜕皮体长度 (BL) 高度相关，因此可用于计算部分破损蜕皮的 BL。头部宽度对男性和女性的变异系数最小，因此是一种有价值的测量方法，可用于不同人群的生物特征比较。本文提供的数据将用于未来与其他北非和欧洲 C.boltonii algirica 种群的比较。