Dobsonflies are aquatic insects that spend nearly all their lives in water. But when they come out – are Dobsonfly dangerous? Their huge size and pincers certainly indicate so, but let’s be sure.
Huge pincer-like jaws on a giant insect are a clear indicator of how dangerous it is, right? Wrong.
The jaws may look dangerous, but the bigger the jaws are, the more effort it takes to generate a sharp, biting force.
Dobsonflies are the best example of this. These insects have extremely long jaws, but surprisingly, they can barely cause any damage to humans through their bites.
But the same is not true for all kinds of dobsonflies. Confused? Well, don’t be. In this article, we will discuss which dobsonflies can hurt humans and how dangerous they are.
What Are Dobsonflies?
Dobsonflies are one of the largest insects found in various regions of North America. They have pincer-like mandibles that can almost grow up to an inch in length.
However, if you look closely, adult males have comparatively bigger mandibles than females. This gives them a scarier appearance.
The various species of dobsonflies are aquatic insects; they prefer to stay near clean water bodies.
Also, they are nocturnal in nature and are active throughout the spring and summer.
If we exclude the size of the jaws, an adult dobsonfly can easily range from 2-4 inches in length. The Eastern Dobsonfly has an enormous wingspan of 5 inches.
The overall appearance of the body adds to the frightening factor. They are usually dark in color and have grayish-brown wings with distinct vein-like patterns.
Are Dobsonfly Dangerous To Humans?
Male adult dobsonflies might look fearsome with their enormous mandibles, but these jaws are just for show.
The chewing muscles are not strong enough to transfer a strong enough force to the tip of the mandibles to generate a strong bite force.
The female has shorter mandibles and can hurt humans by biting.
Can They Bite Or Sting?
Yes, they can bite, but as mentioned above, the males are not capable of delivering painful bites. The female dobsonflies have smaller jaws and can generate enough biting force to break past the human skin and trigger pain.
Are They Poisonous?
No, dobsonflies are not poisonous. Yes, the bites from the female can be a little too painful to handle, but they won’t show any long-term fatal effects on your body.
Are They Dangerous To Pets or Other Animals?
No, these types of insects are not harmful to pets. The bites can be an alarming factor here, but they won’t have any long-term effects.
Since these insects live mostly around clean aquatic bodies, the chances of your pet encountering one are less.
Are Dobsonfly Larvae Dangerous To Humans?
Larvae of dobsonflies are called hellgrammites. These aquatic insects are underwater predators and are found in clean and cool bodies of water.
Hellgrammites prefer to hunt in high water currents. Unlike adult males, hellgrammites have small and sharp pincers.
Adding to that, they are blessed with strong chewing muscles that help them to generate strong biting forces.
This means dobsonflies, during their larval stage, can hurt humans through their bites.
But again, these bites are not poisonous, and moreover, you are unlikey to meet one unless you steup into water.
Symptoms of Larval Bites?
When a hellgrammite bites, you will feel a strong surge of pain near the wound. The bites are strong enough to cause bleeding, irritation, swelling, and redness.
Thankfully, these symptoms are temporary; the pain will subside quickly.
What To Do If You Get Bitten?
If you get bitten by a dobsonfly, there is no need to panic. Yes, you will feel pain, but it won’t last long. Wash the wound with clean water and apply some antiseptic to avoid allergic reactions.
How To Get Rid Of Dobsonflies?
We have already mentioned that these aquatic insects are not dangerous for humans. Therefore if you find them near your house, it is okay to leave them be.
They won’t cause any damage, and since they have a short life cycle as adults, they will disappear quickly.
Also, dobsonflies prefer to lay egg masses near water bodies. The chances of them laying eggs indoors are close to zero.
If you are hell-bent on driving them out instantly, you can use the and powdered insecticide.
Create a solution of it by mixing an ounce of the insecticide with one-gallon water. Put the solution in a spraying bottle and sprinkle it on areas where you spot these insects.
Also, they are attracted to light sources. Therefore try to keep the porch lights off at night to avoid them.
Frequently Asked Questions
What Is A Dobsonfly Good For?
Dobsonfly larvae can be used to determine the quality of water in various streams, ponds, lakes, and more. The insects prefer to live in clean waters and well-oxygenated waters.
If the water is polluted, the larvae won’t be able to survive. A good dobsonfly population in water is an indicator that the water is clean.
Why was a Dobsonfly in my house?
Dobsonflies usually do not enter homes, but if you find one loitering inside your house, it must have been lured in by lights.
These insects are nocturnal and get instantly attracted to a light source in the dark. As soon as they spot a source, they start flying toward it.
What does a Dobsonfly eat?
Adult dobsonflies do not eat. They prefer to survive using the fat storage built during the larval stage. The immature dobsonflies, on the other hand, are great hunters.
They live in fast-flowing water and are excellent at hunting small aquatic insects and fishes. They, too, have sharp pincers-like jaws to clamp the prey and tear to tear it down.
How painful is a dobsonfly bite?
Male dobsonflies are harmless. Despite having enormous mandibles, they can’t generate strong enough biting force to cause pain.
Female dobsonflies have shorter mandibles but can produce enough biting force to break past the human skin and cause bleeding.
The bites are painful, but they don’t cause any long-term fatal effects.
Lastly, the larvae, ie, hellgrammites, can bite and yes, their bites are painful as well piercing to the human skin.
Where do dobsonflies lay their eggs?
They always lay eggs near water bodies. Female dobsonflies prefer to lay eggs on various structures or objects flowing above the water surface.
Sometimes if they don’t find a nearby floating object, they switch to the rock near different clean water bodies like streams.
Wrap Up
Dobsonflies may look like tiny demons, but they are a classic example of why appearances can be deceptive.
The males in particular, are entirely harmless. The female can have the capacity to deliver painful bites, but these bites won’t cause any fatal injuries or illness.
Adding to that, these aquatic insects barely invade homes and will cause no damage to household items and crops.
In fact, they are great for determining the water of various streams and lakes.
Use the information given in the article to identify which dobsonflies can bite and try to be careful around them. Thank you for taking the time to read the piece.
