**Description:** A small dragonfly where mature males turn an intense jet-black; females are strikingly patterned in yellow and black.
**Size:** 0.8 to 1.2 inches long.
**Behavior:** A specialist of cooler environments. Their dark color allows them to absorb heat quickly in the mist-prone high country.
**Habitat:** High-elevation wetlands, acidic peat bogs, and cold glacial pools.