Emerald Spreadwing

Known as the Robust Spreadwing, Lestes dryas is a dazzling, metallic-green gem of the insect world. Unlike most damselflies that fold their wings neatly along their bodies when resting, this species lives up to its name by keeping its wings wide open at a 45-degree angle. They are often found shimmering like living jewelry near the edges of ponds, acting as nature’s high-speed pest control.

🔍 How to Identify

• 👐 The "Spread" Stance: Its most defining feature is resting with wings held out and away from the body, a trait unique to the Spreadwing family.
• 💎 Metallic Sheen: Both males and females sport a brilliant, metallic emerald-green body that can shift to bronze as they age.
• ❄️ Powdery Blue: Mature males develop a "pruinescence"—a waxy, powdery blue coating—on the tip of their tail and the sides of their midsection (thorax).
• 💪 Sturdy Build: Compared to other damselflies, it has a noticeably thicker, more "robust" abdomen and thorax.

🌲 Habitat & Ecology

• 💧 Ephemeral Waters: These insects are specialists in "temporary" wetlands. They prefer shallow ponds, ditches, or marshes that might dry up in late summer, as these spots have fewer predatory fish.
• 🦟 Aerial Hunter: They are beneficial "friends" to humans. Both the aquatic larvae and the flying adults are voracious predators, feeding heavily on mosquito larvae, midges, and other small flies.
• 🌾 Perch Preferences: You will usually find them clinging to vertical stalks of rushes, sedges, or tall grasses near the water's edge, scanning for their next meal.

⚠️ Safety & Toxicity

• 🛡️ Harmless: The Robust Spreadwing is completely safe for humans and pets. They do not have a stinger and are not aggressive.
• 👄 Biting: While they have mandibles for hunting small gnats, they are far too small to bite a human. Even if handled, they are unlikely to even try.
• 🌿 Garden Friend: They are an excellent sign of a healthy ecosystem and pose zero risk to your plants; in fact, they help protect them by eating plant-damaging aphids and midges.

✨ Fun Fact

The Robust Spreadwing has mastered the art of time travel! To survive in ponds that dry up, the females lay their eggs inside plant stems above the water line. The eggs enter a state of "diapause" (suspended animation), surviving the winter freeze and only hatching when the spring rains return to flood the pond.