Earwigs and scorpions both have prominent pincers, which explains why a quick glimpse can create confusion. The easiest distinction is where those pincers sit. An earwig has six legs and a pair of forceps at the rear of its abdomen. A scorpion has eight legs, large pincers at the front, and a segmented tail ending in a stinger. Once you know which end of the animal carries the pincers, an earwig vs. scorpion identification usually becomes straightforward.
Earwig vs. Scorpion: The Pincers Are on Opposite Ends
The feature that makes an earwig look vaguely scorpion-like is also the best way to tell them apart. An earwig’s characteristic forceps, or cerci, project from the rear of its abdomen. Most female European earwigs have relatively straight-sided forceps, while males usually have a more curved, pincer-like pair.
A scorpion carries its obvious pincers at the front instead. These are modified appendages called pedipalps, and scorpions use them to grasp prey. Behind the body is a segmented tail that curves upward and ends in a stinger. That combination of front pincers and a stinger-tipped tail creates the familiar scorpion silhouette.
This gives you a simple orientation test. Rear forceps with no stinging tail indicate an earwig. Large front pincers plus a segmented tail and stinger indicate a scorpion.
That distinction matters more than how curved the pincers appear. A female earwig’s straighter cerci can look less dramatic than the strongly curved forceps people associate with earwigs, but they are still located at the back of the insect.
Count the Legs When the Pincers Are Hard to See
Leg count gives you another strong identification feature. Earwigs are insects, so they have six legs. Scorpions are arachnids related to spiders, ticks and mites, and they have eight walking legs.
That difference is particularly useful with a small specimen. A dark animal disappearing beneath a stone may not give you enough time to inspect its pincers or tail, but a clear photograph can reveal the number of legs. A scorpion’s two front pedipalps should not be mistaken for another pair of walking legs.
Body shape provides another clue. The European earwig has an elongated, relatively flat body that ends at its forceps. A scorpion has a broader front body, prominent pedipalps and a distinct segmented tail extending beyond the abdomen.
We would rely on these structural features before color. Scorpions occur in shades including yellow, brown, gray and black, while the European earwig is dark reddish brown. Consequently, a brown specimen is not enough to decide between them.
Scorpions Can Be Much Larger, but Size Is Not the Best Test
An adult European earwig is about 12 to 16 millimeters long, or roughly half an inch to five-eighths of an inch. Some scorpions are substantially larger, making the difference obvious at a glance. However, scorpion size varies considerably by species. Immature scorpions are also smaller than adults. That makes a rule such as “small means earwig” unreliable.
The better approach is to use size only as supporting evidence. Even a small scorpion still has the basic scorpion body plan, including eight walking legs, front pedipalps and a segmented tail. An earwig retains its six-legged insect body and rear forceps.
There is another reason not to judge from apparent size alone. People often see these animals at night, beneath objects or while they are moving quickly. Perspective can make a small animal look larger in a photograph, while only part of a scorpion may initially be visible from its hiding place. Anatomy survives those viewing problems better than a size estimate does.
Earwigs and Scorpions Can Hide in Similar Places
Location alone can actually make this comparison harder. Both animals can spend daylight hours concealed beneath objects and become active at night.
European earwigs hide in dark, moist crevices and can occur beneath boards, bark and other protected objects. Their nighttime activity means someone moving a flowerpot, board or piece of outdoor clutter during the day may suddenly expose one.
Scorpions also shelter during the day. Depending on the species and environment, they may hide under stones, boards, debris or wood. They emerge at night to hunt prey. Some can also enter buildings through openings around doors and windows.
So finding a mysterious pincer-bearing animal beneath a board does not settle the identification. The location fits both possibilities. This is one of those comparisons where anatomy is far more useful than asking where you found it.
The Tail Is the Feature You Should Never Ignore
People sometimes focus so heavily on the pincers that they miss the more important difference at the opposite end of a scorpion. A true scorpion has a segmented tail, called the metasoma, ending in a telson that contains the stinger and venom glands.
An earwig has nothing comparable. Its abdomen ends in the paired cerci responsible for its “pincher bug” appearance. Those structures are used for defense and handling prey, but they are not a scorpion tail or stinger.
That difference also changes how carefully you should approach an unidentified specimen. Scorpions possess venom and can sting. The medical importance of a sting depends heavily on the species and circumstances, so identifying a suspected scorpion is more than a cosmetic distinction.
Earwigs are a very different household concern. Their intimidating rear forceps can make them look more threatening than they are, and our separate guide covers whether earwigs are dangerous to humans without confusing their defensive pincers with a venomous stinger.
What to Do When You Cannot Tell Which One You Found
Do not handle an unidentified pincer-bearing animal with your bare hands. Instead, keep your distance and inspect it visually if you can do so safely. A clear photograph taken without approaching closely can preserve details such as leg number, pincer position and the presence or absence of a segmented tail.
For a suspected scorpion, those three features should be your priority. Look for eight walking legs, front pincers and a stinger-bearing tail. Scorpions also fluoresce under ultraviolet light, which is why ultraviolet flashlights are commonly used during nighttime scorpion inspections.
An earwig should instead show six legs and forceps at the rear. If earwigs repeatedly appear indoors, the issue becomes one of finding entry points and favorable conditions rather than treating the animal as a scorpion. Our guide to keeping earwigs out of the house covers that problem in more detail.
When a specimen might be a scorpion and you cannot identify it confidently, avoid direct contact and have the animal identified by a qualified local pest professional or entomology service. Scorpion species and their medical significance vary geographically, so guessing from color or size is not worth the risk.
Other Questions About Earwigs and Scorpions
Are earwigs related to scorpions?
No. Earwigs are insects in the order Dermaptera, while scorpions are arachnids. The resemblance comes largely from their prominent pincer-like structures rather than a close taxonomic relationship.
Can a baby scorpion look like an earwig?
A small scorpion may make size less useful for identification, but its basic anatomy remains different. It has eight walking legs, front pedipalps and a segmented tail. A young earwig remains a six-legged insect and lacks the scorpion’s stinger-bearing tail.
Do scorpions glow under ultraviolet light?
Yes. Scorpions fluoresce under ultraviolet light, often producing a greenish or blue-green appearance. This feature can make a ultraviolet flashlight useful for finding scorpions at night, but you should still use body structure to confirm what you found.
Can earwigs and scorpions be active at the same time?
Yes. Both can be active at night and spend daylight hours in protected hiding places. Their overlapping activity pattern is one reason behavior alone is less useful than checking the legs, pincers and tail.
Could I find an earwig and a scorpion in the same yard?
Yes, where the geographic range and local habitat support both. Each can use protected outdoor hiding places such as spaces beneath objects or around debris. Finding one therefore does not rule out the presence of the other.