Dragonflies in Washington: identification guide and best places to start

In Washington you will most often see the Common Green Darner (Anax junius), a large blue and green dragonfly that can reach 7.5 cm in length. The Four-spotted Skimmer (Libellula quadrimaculata) appears frequently, recognizable by its dark spots on each wing. The Striped Meadowhawk (Sympetrum pallipes) is also common in late summer, especially in open areas. Other species like the Widow Skimmer and Dancers are present but less numerous. For a full list of species, visit our dragonfly guide.

In Washington, successful dragonfly sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use the state wildlife hub and the route guide to narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.

Your best odds are around the many lakes and ponds in the Puget Sound lowlands, particularly around Seattle, Tacoma, and Olympia where shallow ponds and wetland edges attract high concentrations of dragonflies. The wetlands of the Columbia River Basin, including the Turnbull National Wildlife Refuge near Spokane, hold excellent populations, especially in summer months. The marshes of eastern Washington provide ideal breeding habitat for many species. Backyard ponds with native plants also attract them reliably. Check our Washington wildlife page for regional habitat details.

Most misses happen when people arrive at the wrong hour or expect nonstop activity. Build around what season or weather patterns help, keep one backup area in mind, and use the animal facts page plus tour planning ideas to compare what a realistic outing looks like in Washington. If movement slows, stay longer at one promising spot, listen for activity or watch for edge movement, and reset around weather, light, water, or feeding changes instead of jumping to a totally new area too early. Early morning and late afternoon, when temperatures are warmest and insects are most active, yield the most sightings.

The main dragonfly season runs from late May to early September. Warm, sunny days with light wind are ideal for activity. Dragonfly activity peaks in the hours after a summer rain when insects are most abundant and weather stabilizes. Some species, like the Common Green Darner, are also active on cooler overcast days. Early June through August offers peak season for most species.

Temperature matters significantly. Dragonflies become sluggish when temperatures drop below 60 degrees Fahrenheit. Humidity and wind also affect visibility and activity patterns. Overcast days can be productive because insects stay lower and are easier to observe. See our state animal guide for the next step.

The easiest difference is wing position at rest: dragonflies hold their wings out horizontally, while damselflies fold them over their body. Dragonflies also have larger, separated eyes positioned on the sides of their head, and a thicker, more strong body. Their eyes often have distinct colors, from emerald green to ruby red. Look for these cues near any water body. Many dragonflies share habitats with herons; see our heron guide for more on wetland birds.

Size is another quick clue. Most dragonflies are larger than damselflies, typically 1 to 3 inches long compared to damselflies at half that size. When at rest, dragonflies also hold their body more or less parallel to the ground, while damselflies hold theirs nearly vertical. Watching their flight style helps too: dragonflies are powerful, acrobatic fliers that hover and dart quickly, while damselflies have a slower, fluttering flight.

Dragonflies need calm freshwater for breeding and an abundance of flying insects for food. Ponds, slow streams, and marshes with emergent vegetation are best. In eastern Washington, natural lakes and irrigation ditches also hold good populations. Wetlands with cattails, rushes, and aquatic plants provide ideal egg-laying sites. Forest edges near water create zones where dragonflies hunt larger insects. Acidic wetlands and alkaline lakes each support different species, so habitat diversity across Washington means you have many options year-round.

Vegetation type matters greatly. Dragonflies lay eggs on plant stems in water, so areas with dense emergent plants (above the waterline) are essential. Ponds and lakes with both shallow weedy zones and deeper open water attract the widest variety. For more on Washington's diverse wildlife, explore our state hub.