The dobsonfly spends up three years as a larva, and only a week as an adult.
Dobsonfly Scientific Classification
Dobsonfly Physical Characteristics
Brown, Grey, Yellow
3-10 days
Dobsonfly Distribition

Dobsonflies are a team of insects that come from the family Corydalidae. Insects in this subfamily are big and terrifying- looking. They’re amongst the biggest water insects in The United States and Canada. Fishermens famously make use of the larvae of dobsonflies (hellgrammites) as fish lure. The larvae stay in streams. Grownups typically rest near water bodies.

Dobsonflies Species, Kind, and Scientific name

Dobsonflies are a subfamily of insects that come from the family Corydalidae and order Megaloptera– an order of insects which contain greater than 300 recognized species, consisting of alderflies and fishflies. There are 9 category of dobsonflies with 60 species of the insects. The beginning and significance of the name “dobsonfly” are unidentified.

Among the most effective- explained participants of this team of insects is the Corydalus that includes the eastern dobsonfly ( Corydalus cornutus). This big insect with a body size of concerning 2 inches suches as to hug water bodies.

The 9 category of dobsonflies are commonly organized right into 4 family trees. These consist of:

  • The Protohermes family tree: this consists of both category (Neurhermes and Protohermes). They stay in Northwest India, Indonesia, China, Japan, and various other components of Asia.
  • The Chloroniella family tree: this consists of just one genus Chloroniella that is unique to South Africa.
  • The Nevromus family tree: this consists of 3 category (Acanthacorydalis, Nevromus, and Neoneuromus) located in Northwest India to Southeast Asia.
  • The Corydalus family tree consists of 3 category: Platyneuromus, Chloronia, and Corydalus. They’re commonly located in the Americas.

Appearance: Exactly How To Recognize Dobsonflies

Female Eastern Dobsonfly (Corydalus cornutus)
An eastern dobsonfly, that makes The United States and Canada its residence.Jay Ondreicka/Shutterstock. com

Beside butterflies, grown-up dobsonflies are amongst the biggest insects in the pleasant areas of The United States and Canada. A lot of species have a typical wingspan of concerning 7 inches and action in between 2 to 4 inches in size from the top of the head to the idea of their wings. Nonetheless, some species, such as the Eastern Acanthacorydalis fruhstorferi, can get back at larger with a wingspan of approximately 8 and a fifty percent inches. Based upon this dimension, dobsonflies are the biggest water insects worldwide.

The shade of their wings is commonly grayish or brown- grey. The wings are greatly veined and are typically discovered. They have long and string- like antennae and normally hold their fly a roofing- like way over their body. In spite of the dimension of their wings, grown-up dobsonflies are not fantastic fliers.

Below the wings, they have a soft round body that is commonly concerning 3 inches in size. The shade of their body differs from yellow to brown. The males of some species have lengthy and bent jaws, which they make use of for protection and as a kind of reproductive display screen in some species. Because of the dimension of their jaws, the males can not utilize them to attack. Females, on the various other hand, have brief and greatly sclerotized jaws that can supply effective attacks when intimidated.

Environment: Where to locate Dobsonflies

The 60 species of dobsonflies are dispersed throughout different areas in The United States and Canada, South America, Asia, and South Africa. Hellgrammites, the larvae of this insect, project water residents that stay in streaming fresh water such as streams. They stay in well- oxygenated water and are typically consumed by fish such as bass. Fully grown larvae typically move to rotting greenery, damp dirt, or moss not much from the water, where they turn into pupae where grownups arise. The grownups do not take a trip also much from the water primarily since they’re not superb fliers. They’re mainly energetic during the night and might be drawn in to light.

Diet: What do Dobsonflies eat?

Grownup dobsonflies have a brief life-span, and they do not feed. The larvae of dobsonflies are vicious predators that eat different water insects and tiny invertebrates in the water. Their diet might include larvae of stoneflies, caddisflies, mayflies, and chironomid midgets.

What consumes Dobsonflies?”

Fishes, specifically bass, eat hellgrammites. Due to this and because of their dimension and vicious personality, fishermens typically choose them as lure for capturing bass and various other fishes. They have the ability to withstand for long on a hook and work for bring in fish.

Avoidance: Just how to do away with Dobsonflies

Dobsonflies are water insects that commonly live around streams, rivers, and lakes. Nonetheless, grownups might be a problem in residences because of their destination to lights. They rarely make up an issue, and they’re not hazardous. Nonetheless, they can be a little irritating.

You can do away with dobsonflies by using chemical pesticides around the border of your residence. This does away with the insects around your residence and stops them from returning. To stop future invasions, you must think about altering your outside lights to unique yellow pest light bulbs also.


  1. Iowa State University, Available here:
  2. Britannica, Available here:
  3. Wikipedia, Available here:
  4. University of Maine, Available here:
  5. Solutions Pest and Lawn, Available here:

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