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Dobsonfly Facts & Information

Protect your home or business from dobsonflies by learning techniques for identification and control.

Dobsonfly illustration
Order Megaloptera


How do I get rid of dobsonflies?

What Orkin Does

Keeping pests out of your home or building is an ongoing process, not a one-time treatment. Orkin’s exclusive A.I.M. solution is a continuing cycle of three critical steps—Assess, Implement and Monitor.

Orkin can provide the right solution to keep dobsonflies in their place and out of your home or business.

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Frequently Asked Questions

Behavior, Diet & Habits

Understanding Dobsonflies


Adults typically do not feed. They are attracted to lights and may been seen resting on walls near outdoor light fixtures. Larvae are aquatic and predators of other aquatic organisms. Fisherman sometimes use them as bait for fish.

Habitat & Reproduction

Females lay eggs in fast-moving streams and rivers. Dobsonfly larvae emerge and often hide under rocks and in crevices. They go through a series of molts until they pupate into adults. The larvae become adults after an underwater stage known as hellgrammites.

Larvae Bites: Signs and Symptoms

Typically living under rocks in flowing rivers and streams, hellgrammite larvae feed on small, soft-bodied insects. Their heads are equipped with sharp pincers capable of delivering painful bites to humans. While hellgrammites are not aggressive, bites from these larvae often pierce the skin and cause very minor bleeding.

Additional Fly Types

Black Flies

Cluster Flies

Crane Flies

Crane Fly Larvae

Deer Flies

Face Flies

Flesh Flies

Life Cycle of Flesh Flies

Green Flies

Horn Flies

Horse Flies

Sand Flies

Sparaerocierid Flies

Yellow Flies

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