Britain's Longest Dragonfly Lands on Conservation Officer's Thumb

When you work in conservation, you hope for moments that remind you why the job matters. For Sarah Hawkes, a conservation officer with Buglife Wales, that moment arrived on a cool morning near the Ceiriog River—when one of Britain’s most spectacular insects decided her thumb was the perfect landing pad.

The golden-ringed dragonfly that touched down on Hawkes’hand is no small creature. At up to 4 inches long with a wingspan to match, it’s the longest dragonfly species in Britain. Yet size doesn’t tell the whole story. These insects are architectural marvels—built for speed, agility, and a hunting prowess that belies their delicate appearance. They’re voracious predators that feast on large insects like wasps, beetles, and bumblebees—and yes, even other dragonflies.

What makes Hawkes’encounter particularly special is where it happened. The Ceiriog River tumbles down from the Berwyn Hills in Wales, part of a landscape where golden-ringed dragonflies thrive. These insects are found mainly in Wales, Scotland, and North West England—regions where their specialized habitat exists. They breed in acidic rivers and streams that cross sandy soils and rocky terrain, the kind of water that’s become increasingly precious as human development spreads. The Dee River Catchment, which includes the Ceiriog, is designated as one of Britain’s Important Insect Areas for good reason.

The dragonfly’s lethargy that morning tells its own ecological story. Insects rely heavily on external heat from the sun to power their movements. On a cool dawn, even Britain’s longest dragonfly becomes sluggish—which is exactly why Hawkes was able to coax it onto her thumb without harm. It’s a reminder that these powerful predators are still vulnerable to their environment, dependent on warmth, clean water, and the right habitat to thrive.

Perhaps most remarkable is the patience required to become a golden-ringed dragonfly. The larvae spend up to five years buried at the bottom of streams, ambushing prey as it drifts past. They’re menacing hunters even in their nymph phase, waiting in darkness for their moment to transform. By the time one emerges on the wing between May and September, it’s earned every bit of its predatory prowess.

Moments like Hawkes’encounter matter because they bridge the gap between us and the natural world. A dragonfly landing on a thumb isn’t just a photo opportunity—it’s a tangible connection to ecosystems we depend on, even when we don’t realize it. In protecting places like the Ceiriog River, we’re protecting not just a species, but the intricate networks of life that make those rivers worth visiting in the first place.