Eastern Saltmarsh Mosquito

Aedes sollicitans · Also known as: saltmarsh mosquito, Aedes sollicitans

The notorious marsh breeder of the Mid-Atlantic coast. Hatches after high tides and moon phases can make Assateague evenings memorable for visitors.

Eastern Saltmarsh Mosquito (Aedes sollicitans) — Ocean City, Maryland
Photo via Wikipedia / Wikimedia Commons — Aedes sollicitans

Quick facts

GroupMosquito / biting fly
Likelihood nearby★★★★★
Habitats Salt marsh, Dunes, Ocean beach, Coastal bays, Assateague State Park, Assateague National Seashore, Inlet
Seasons (this coast)spring, summer, fall

How to recognize them

  • Small mosquito with banded legs and a pale-scaled thorax; not flashy, but unmistakable when swarms rise from marsh pools.
  • Rests on dune grasses and boardwalk railings after wind carries adults inland from the marsh.

Biology notes

  • Eggs laid on damp marsh soil; larvae develop in shallow pools after spring tides, storms, and lunar high tides.
  • Strong flier that travels miles downwind—beach towns feel marsh hatches even when local ditches are dry.

Where to see them around Ocean City

  • Assateague campgrounds and bayside trails within a few miles of open salt marsh.
  • Ocean City high-rise balconies on west-facing marsh breeze nights after new and full moons.
  • Marsh kayaking routes through Sinepuxent and Isle of Wight Bay edges at dusk.

When to look

  • May–October peaks; worst windows often 3–5 days after exceptional high tides or northeast storms.
  • Dusk and calm, humid evenings.

Viewing tips & etiquette

  • Check local mosquito-control advisories and Assateague ranger updates during hatch weeks.
  • Long sleeves, repellent (EPA-registered), and breezy beach walks beat swatting alone.

Sources & further reading