Variable Bluet

Coenagrion pulchellum is a small damselfly with a slender body marked in blue and black, males displaying distinctive "wine-glass" markings on the second abdominal segment that distinguish them from closely related bluet species. Females are typically greenish or brownish with dark dorsal patterning. Adults are weak fliers that remain close to dense emergent and submerged vegetation, where they hunt small flying insects.

Larvae are aquatic predators, feeding on other invertebrates, and their presence supports fish, amphibians, and birds further up the food chain, making them useful indicators of freshwater habitat quality.

The species has an extensive range across Europe and into parts of western and central Asia, with records extending to Kazakhstan, Iran, and Kyrgyzstan, and isolated occurrences noted in Canada and Australia. It inhabits still or slow-moving freshwater bodies such as ponds, ditches, canals, and fens with abundant aquatic vegetation.

Despite its broad distribution, population numbers are declining in many regions due to agricultural runoff causing eutrophication, drainage of wetlands, pollution linked to urban expansion, altered water levels from climate change, and habitat degradation from invasive plants. These pressures reduce the structural complexity of vegetation the species depends on for breeding and shelter.

Conservation responses include wetland restoration projects, water quality monitoring, and habitat protection measures within protected areas across parts of its European range, alongside national-level monitoring programs tracking damselfly populations.

Its current population trend is unknown, reflecting inconsistent monitoring across its wide range. Given the combination of ongoing habitat degradation and water quality pressures, the species' long-term outlook remains uncertain without sustained wetland conservation efforts.

The Variable Damselfly inhabits shallow, well-vegetated freshwater bodies including ponds, ditches, canals, and slow-flowing streams with abundant emergent and submerged vegetation. It shows a strong preference for calcareous waters with stable water levels and requires areas with diverse aquatic plant communities that provide both oviposition sites and shelter for developing larvae.