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Essential Dobsonfly Information

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Types of Dobsonflies

Dobsonflies are large, aquatic insects belonging to the order Megaloptera, and they are best known for their impressive mandibles and intimidating appearance. While there are numerous species across North and South America, the most well-known in the United States is the Eastern Dobsonfly (Corydalus cornutus).

Here are a few notable types of dobsonflies:

  1. Eastern Dobsonfly (Corydalus cornutus)
    This species is found in the eastern U.S. and is the largest dobsonfly in North America. Males have extremely long, curved mandibles, while females have shorter but more powerful jaws.

  2. Western Dobsonfly (Corydalus texanus)
    Native to the southwestern U.S. and Mexico, this species resembles the Eastern Dobsonfly but inhabits different ecological zones and prefers warmer, arid climates.

  3. Central American Dobsonflies (e.g., Corydalus luteus)
    Found throughout Central America, these species often have varying colors and slightly different life cycles adapted to tropical conditions.

  4. South American Dobsonflies
    Many large and colorful dobsonfly species exist in the Amazon and surrounding regions. These include some of the most visually striking varieties, though they are less studied.

Dobsonfly larvae, known as hellgrammites, are aquatic and live under rocks in clean, flowing streams. They are often used as fishing bait due to their size and movement. While dobsonflies may look frightening, they are harmless to humans and play a vital ecological role in freshwater ecosystems.

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Dobsonfly Removal Services

What’s the best way to eliminate dobsonflies?

How Homezies Helps Get Rid of Dobsonflies?

While dobsonflies are not typically harmful to humans, their large size and intimidating appearance can make them unwelcome guests—especially when they gather around lights or make their way indoors. At Homezies, we specialize in helping homeowners keep these creepy-looking insects where they belong: outside.

Here’s how Homezies helps get rid of dobsonflies:

  1. Thorough Property Inspection
    Our pest experts begin by assessing your home’s surroundings, especially areas near water sources like creeks, ponds, or drainage ditches where dobsonflies and their larvae (hellgrammites) typically thrive.

  2. Moisture and Habitat Control
    We help reduce conducive conditions around your home—addressing standing water, sealing gaps, and recommending landscape modifications to deter future infestations.

  3. Light Management Solutions
    Dobsonflies are attracted to light. We offer practical guidance and services to modify exterior lighting or install bug-resistant lighting systems that minimize attraction.

  4. Exclusion Techniques
    We seal entry points such as gaps around windows, doors, and vents to keep dobsonflies from entering your home.

  5. Targeted Treatments (if needed)
    Although pesticide use is rarely necessary for dobsonflies, we use eco-friendly, localized treatments if their presence becomes a recurring nuisance.

  6. Ongoing Prevention
    Homezies offers follow-up services and long-term prevention plans tailored to your environment, especially if you live near bodies of water where dobsonflies are common.

Whether they’re hovering around your porch lights or creeping into your home, Homezies ensures dobsonflies stay out of your living space—for good.

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Frequently Asked Questions

Dobsonflies are large, winged insects commonly found near streams, rivers, and other freshwater sources. Their larvae, called hellgrammites, live in water and are indicators of a healthy aquatic environment.
While their appearance is intimidating—especially the large mandibles on males—dobsonflies are not harmful to humans. They do not bite or sting and are not known to spread disease.
Dobsonflies are attracted to bright lights at night. Homes near water sources may see them congregate around porch lights, windows, and other illuminated areas during their mating season.
Dobsonflies do not infest homes in the traditional sense. However, they may accidentally enter through open windows or poorly sealed doors while seeking light, especially during warm, humid weather.
Use yellow or sodium vapor bulbs outdoors to reduce attraction, seal windows and doors, and keep exterior lights off when not needed. Installing screens and limiting moisture around your home also helps.
Homezies provides expert inspection, light management strategies, and sealing solutions to minimize dobsonfly entry. While they don’t require chemical treatment, our prevention measures keep them from becoming a nuisance.

Remove existing pests and stop future infestations from happening.

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