Emergence patterns of Coenagrion hastulatum (Charpentier) in northern Germany (Zygoptera: Coenagrionidae)

The emergence patterns were followed closely at a pond E of Braunschweig. The emergence period lasted 24 days and the EM50 was reached after 11 days. Due to its emergence phenology. C. hastulatum is classified as a summer species. The date of emergence was negatively correlated with head width in 9 2 but not in