(often called "hanging swamps" or "soaks").
Ogre Darner nymphs are . They dig vertical, mud-lined tunnels—up to 30 cm deep—into the saturated peat of their seepage habitat. The nymph waits at the tunnel’s mouth with only its eyes and the tip of its extendable lower lip (labium) exposed. It ambushes passing invertebrates and even small tadpoles, dragging them into the burrow. ogre darner dragonfly
This larval stage is extraordinarily long: (or possibly more). It’s a slow, patient, underground existence. Adult Behavior After half a decade underground, the mature nymph crawls out at night, climbs a fern or sedge, and emerges as an adult. The adult life, by contrast, is short—perhaps a few weeks to a month. (often called "hanging swamps" or "soaks")
Adults are , flying in dim light at dawn and dusk. They are strong, heavy fliers, patrolling low over their swampy breeding sites. Unlike many dragonflies that hawk prey high in the air, Ogre Darners hunt close to the ground, picking off other insects (flies, beetles, small moths) from the undergrowth. The nymph waits at the tunnel’s mouth with
These are not open ponds. They are acidic, peaty, slow-flowing channels of water hidden deep under dense canopy. The water is cool, clean, and rich in oxygen—and vanishingly rare. The true “ogre” nature emerges in its juvenile stage. Most dragonfly nymphs (naiads) are aquatic sprawlers that hide among plants. Not this one.