About Coenagrion hastulatum (Charpentier, 1825)
Coenagrion hastulatum, commonly known as the northern damselfly or spearhead bluet, is a species of damselfly belonging to the family Coenagrionidae. This species is widespread and common across northern Eurasia. In western and southern parts of its range, it is only found at elevated sites or in bog-like habitats. In Britain, the species is limited to a small number of small lochans in Scotland. Adult Coenagrion hastulatum measure 31–33 millimetres (1.2–1.3 in) in total length. The species-specific epithet hastulatum comes from the Latin word hastula, meaning small spear. This name refers to the distinctive marking on the shape of a spear on the second segment of the damselfly's abdomen.
