Hudsonian Whiteface, Leucorrhinia hudsonica
The Hudsonian whiteface (Leucorrhinia hudsonica) is a species of dragonfly that can be found in a range that extends from Labrador to Alaska and from northern areas of West Virginia to the Hudson Bay, the areas from which it received its scientific name. This species prefers to reside near lakes, ponds, sloughs, fens, and bogs with sandy bottoms, which typically occur at higher elevations. Its flight season, when it is typically seen, occurs between the months of May and August.
The Hudsonian whiteface reaches an average length of up to 1.2 inches and both males and females have heads that are creamy white in color. Males are black in color and hold red markings on the abdomen and thorax. Females are dark brown in color and can hold yellow markings. The naiads, or larvae, are brown in color and typically hold three darker stripes along the underside of the abdomen.
The Hudsonian whiteface has been known to swarm in some northern areas of its range, but there is little known about the habits of the species. It is thought to hunt over vegetation along the shoreline of water sources, where adults consume soft-bodied flying insects like mosquitoes, moths, and mayflies. Aquatic naiads will consume other aquatic larvae by waiting in underwater vegetation, which protects them from predators. After breeding, males will protect females from other males while she lays her eggs in the water, which hatch into aquatic larvae after an unknown amount of time. This species is common across its range and holds no major threats.
Image Caption: Hudsonian Whiteface Leucorrhinia hudsonica). Credit: US Army Corps of Engineers/Wikipedia