
Once a common sight above Japan’s rice paddies and wetlands, the tortoiseshell dragonfly (Libellula angelina) is now one of the country’s most endangered insects, found in only five of Japan’s 47 prefectures. But in Yamaguchi Prefecture, one park worker is on a quiet mission to bring this delicate creature back from the edge of extinction.
A Species on the Edge
The tortoiseshell dragonfly, known for its distinctively patterned wings and graceful flight, is rapidly disappearing due to habitat loss, pesticide use, and the drying up of wetland breeding grounds. Once widespread, it’s now barely clinging to survival in a handful of isolated regions.
But in Yamaguchi, efforts are underway at a local nature park where a dedicated staff member has taken it upon himself to create safe habitats for the dragonfly. His work includes:
- Restoring native wetlands
- Breeding the dragonflies in captivity
- Monitoring their life cycle and release into the wild
A Small Effort with Big Wings
This grassroots conservation effort is showing signs of hope. Several dragonfly larvae raised in protected conditions have successfully emerged into adults, giving experts renewed optimism.
“These insects are not just beautiful—they are indicators of a healthy ecosystem,” said the park worker, who has spent over a decade studying and protecting the species. “Saving them means saving the wetlands they depend on.”
With increased awareness, it’s hoped that other prefectures and conservation organizations will join in to protect the tortoiseshell dragonfly and its fragile wetland homes.
FAQs
Why is the tortoiseshell dragonfly endangered?
The primary threats include loss of wetland habitats, pesticide pollution, and climate change, all of which disrupt their breeding and feeding grounds.
How can people help protect this species?
Supporting wetland conservation, reducing pesticide use, and backing local biodiversity programs are key ways the public can help prevent extinction.
Quick Facts:
- Scientific Name: Libellula angelina
- Current Habitat: Only 5 prefectures in Japan
- Status: Endangered
- Key Threats: Habitat loss, pollution, climate shifts
- Hope Spot: Yamaguchi Prefecture’s local conservation initiative
The future of this dragonfly may rest on the fragile wings of community-led conservation—and Japan’s growing commitment to biodiversity.
Source:https://www3.nhk.or.jp/nhkworld/en/news/ataglance/3438/