Home / Environment / Delhi Parks See Dip in Dragonfly Numbers
Delhi Parks See Dip in Dragonfly Numbers
20 Sep
Summary
- 11,154 dragonflies recorded, a decrease from previous year's count.
- Two new dragonfly species were sighted in Delhi's biodiversity parks.
- Erratic rains and dry conditions impacted dragonfly populations.
Delhi's seven biodiversity parks have recorded a decrease in dragonfly and damselfly populations. A three-day survey, conducted from September 17 to 19, 2026, found 11,154 individuals, a drop from the 13,253 counted in 2025. Officials attribute this marginal dip to erratic rainfall and increasing dry spells, which negatively impact the insects' diverse habitats.
Despite the overall decline, the survey also noted the exciting discovery of two new species. The Yellow-tailed Ashy Skimmer was sighted at Aravalli Biodiversity Park, and the Blue Grass Dart was observed for the first time at Yamuna Biodiversity Park. These sightings are significant as the presence of such species indicates a healthy ecosystem capable of supporting these delicate insects.
Dragonflies have complex life cycles and require clean, stable aquatic environments, primarily as nymphs in ponds and wetlands. Their populations are indicators of healthy wetland ecosystems, which in turn contribute to natural mosquito control in surrounding areas. The DDA's restored biodiversity parks are noted for providing these essential pristine environments.
