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The Schmidt Insect Sting Pain Index: North America

Ever wondered how insects like wasps, bees, and ants deliver such ferocious stings? The bullet ant is notorious for its excruciating sting, described as a piercing, stabbing pain and considered one of the most intense experiences on the insect sting pain index. But what about other insects? This article explores the world of stinging insects through entomologist Justin Schmidt’s pain index, unraveling the secrets behind different insect stings and their varying pain levels.

Pain Level 1

pain index: 1
category: ant

Southern Fire Ant
(Solenopsis xyloni)

“It happens on the third day, as you reach for the light switch, and you’re wondering when you will ever learn.”

pain index: 1
category: wasp

Club-Horned Wasp (Sapyga louisi)

“Disappointing. A paper clip falls on your bare foot.”

pain index: 1
category: bee

Cuckoo Bees (Triepeolus sp.)

“Did I just imagine that? A little scratch that dances with a tickle.”

pain index: 1
category: bee

Sweat Bees (Halictidae)

“Light and ephemeral, almost fruity. A tiny spark has singed a single hair on your arm.”

pain index: 1
category: bee

Cactus Bee (Diadasia rinconis)

“A skewering message: get lost. Surprising, because you did not touch a cactus spine, until you realize it’s from a bee.”

pain index: 1
category: bee

Cuckoo Bee (Triepeolus distinctus)

“Touch of fear unrealized. Oh, and I wanted to show how brave I was!”

pain index: 1
category: bee

Giant Sweat Bee (Lasioglossum spp.) (1.5)

“Size matters but isn’t everything. A silver tablespoon drops squarely onto your big toenail, sending you hopping.”

pain index: 1
category: wasp

Great Black Wasp
(Sphex Pensylvanicus)

“Simple and presumptuous. Your younger sibling just nipped at your pinkie finger.”

pain index: 1
category: wasp

Iridescent Cockroach Hunter (Chlorion cyaneum)

“Itchy with a hint of sharpness. A single stinging nettle picked your hand.”

pain index: 1
category: wasp

Scarab Hunter Wasp (Dielis pilipes)

“Like a sip of tannin, bitterness lingers.”

pain index: 1
category: wasp

Water-Walking Wasp
(Polistes)

“Clever but trivial? A little magic in that you cannot quite figure out the difference between pain and illusion.”

pain index: 1
category: wasp

Mud Dauber (Sceliphron caementarium)

“Sharp with a flare of heat. Jalapeno cheese when you were expecting Havarti.”

pain index: 1
category: ant

Little White Velvet Ant (Dasymutilla sackenii)

“Deceptive, like the name. Immediate, rashy, you want to scratch away the kiss of itch. A sand crab pinched your toe while you tanned.”

pain index: 1
category: wasp

Pacific Cicada Killer (Sphecius convallis)

“Clean, concentrated dish detergent seeps into a freshly cut finger.”

pain index: 1
category: wasp

Western Cicada Killer (Sphecius grandis) (1.5)

“Pain at first sight, like poison oak, the more you rub it, the worse it gets.”

pain index: 1.5
category: wasp

A Yellow Potter Wasp (Abispa ephippium) (1.5)

“A surprising touch of nasty. Like a thorn hidden on the back of a rose stem as you clutch the bouquet.”

pain index: 1.5
category: ant

Nocturnal Velvet Ant (Mutillidae) (1.5)

“Itch, burn, and more itch. A toothpick dipped in both itch powder and hot sauce and stuck in your thigh.”

pain index: 1
category: ant

Elongate Twig Ant (Pseudomyrmex gracilis)

“Reminiscent of a childhood bully. Intimidating, but his punch only glanced your chin, and you live for another day.”

Did you know that while the pain of a sting is a deterrence to most creatures, some have gotten used to it (and in some cases, enjoy it)?

Skunks and bears are just a couple of animals that have learned to grin-and-bear it (no pun intended) when it comes to insect stings.

Skunks dig out yellowjacket nests to consume the wasps (tasty) and bears have a taste for the honey in bee hives.

Pain Level 2

pain index: 2
category: wasp

Western Honey Bee (Apis mellifera)

“Burning, corrosive, but you can handle it. A flaming match head lands on your arm and is quenched first with lye, then sulfuric acid.”

pain index: 2
category: wasp

Western Yellow Jacket (Vespula pensylvanica)

“Hot, smokey, almost irreverent. Imagine W.C. Field extinguishing a cigar on your tongue.”

pain index: 2
category: wasp

Bald-Faced Hornet (Dolichovespula maculata)

“Rich, hearty, slightly crunchy. Similar to getting your hand smashed in a revolving door.”

pain index: 2
category: wasp

Honey Wasp (Brachygastra)

“Spicy, blistering. A cotton swab dipped in habanero sauce has been pushed up your nose.”

pain index: 2
category: wasp

Long-Waisted Paper Wasp (Mischocyttarus sp.)

“A robust, full-bodied wake-up call. Imagine a pair of pliers latched onto your upper lip.”

pain index: 2
category: ant

Glorious Velvet Ant (Dasymutilla gloriosa)

“Instantaneous, like the surprise of being stabbed. Is this what shrapnel feels like?”

pain index: 2.5
category: wasp

Golden Paper Wasp (Polistes aurifer) (2.5)

“Sharp, piercing, and immediate. You know what cattle feel like when they are branded.”

pain index: 2
category: wasp

Bumble Bees (Bombus)

“Colorful flames. Fireworks land on your arms.”

pain index: 2
category: wasp

California Carpenter Bee (Xylocopa californica)

“Swift, sharp, and decisive. Your fingertip has been slammed by a car door.”

pain index: 2
category: ant

Large Tropical Black Ant (Neoponera villosa)

“Exquisitely sharp and expertly clean. Broadway’s favorite barber selects his next victim.”

While one sting is largely harmless, multiple stings can be lethal depending on your size.

If you’re a mouse, just four honey bee stings might kill you. If you’re a person? It might take up to 1,000 (but we don’t recommend testing that).

Pain Level 3

pain index: 3
category: bee

Red Paper Wasp (Polistes carolina)

“Caustic and burning, with a distinctly bitter aftertaste. Like spilling a beaker of hydrochloric acid on a paper cut.”

pain index: 3
category: wasp

Red Headed Paper Wasp (Polistes erythrocephalus)

“Immediate, irrationally intense, and unrelenting. This is the closest you will come to seeing the blue of the flame from within the fire.”

pain index: 3
category: bee

Huge Velvet Ant (Dasymutilla klugii)

“Explosive and long lasting, you sound insane as you scream. Hot oil from the deep fryer spilling over your entire hand.”

pain index: 3
category: bee

Florida Harvester Ant (Pogonomyrmex badius)

“Bold and unrelenting. Somebody using a power drill to excavate your ingrown toenail.”

pain index: 3
category: bee

Maricopa Harvester Ant (Pogonomyrmex maricopa)

“After eight unrelenting hours of drilling into that ingrown toenail, you find the drill is wedged in the toe.”

Some insects, like harvester and bullet ants, release odorous compounds to give off warning.

The chemicals released by harvester ants smell like nail polish remover, while a bullet ant releases chemicals that smell like burnt garlic.

Garlic to keep vampires away? More like garlic to keep us away.

Pain Level 4

pain index: 4
category: bee

Tarantula Hawk (Pepsis grossa)

“Blinding, fierce, shockingly electric. A running hairdryer has just been dropped into your bubble bath.”

Thatching ants don’t sting, but they do produce large amounts of formic acid – a corrosive and irritating chemical, especially for humans.

And they bite.

When the ant bites you and formic acid is sprayed onto the wound, that’s when you feel that familiar (and oh-so unpleasant) stinging feeling.

Southern Fire Ant (Solenopsis xyloni)

A stinger is the evolved version of an egg-laying organ called ovipositors. It has transformed into a sharp, needle-like weapon for insects, consisting of three parts: a central stylus and two barbed sliders that move back and forth like a see-saw. The venom, which is the pain-causing liquid, is stored in a venom sac and travels through these parts.

When an insect decides to sting, it uses the central stylus to pierce the skin. The barbed parts move up and down, driving the stinger deeper and squeezing out the venom from the sac into the target.

The Role of Venom

Venom plays a crucial role in a sting. It is a mixture of various chemicals that can cause pain, inflammation, and sometimes paralysis. Specific components in the venom, such as melittin in bees and solenopsin in fire ants, are responsible for the pain we feel.

Despite their small size, insects like wasps, bees, and ants possess a powerful and cleverly designed stinger. And understanding how their stingers work ensures we learn to give them their necessary space:

  • icon-bee Wasps: Wasps have smooth stingers without barbs, allowing them to pull out their stinger and use it repeatedly. They use their stingers for self-defense and to catch and paralyze prey.
  • icon-wasp Bees: Honey bees have a different strategy. Their stingers are barbed and get stuck in the target’s skin. This means the bee can’t survive after stinging, but it ensures continuous venom delivery even after the bee has died.
  • icon-ant Ants: Ants primarily rely on their stingers to deliver stings by injecting venom into their target. While some ants may bite before stinging, their venomous stingers are their primary method of defense and attack.

Why Do Some Stings Hurt More Than Others?

Curious why different insect stings feel different? It all comes down to two main factors: the type of venom and the amount of venom delivered.

Type of Venom

Not all insects have the same venom. Each species has its own unique blend of chemicals in their venom, designed to protect them by causing pain and deterring predators. Some venoms are more complex and contain stronger toxins, resulting in more intense pain. 

For instance, bee venom contains a toxin called melittin, which directly stimulates our pain receptors and triggers inflammation. On the other hand, bullet ant venom contains poneratoxin, a toxin that can cause excruciating pain and temporary paralysis.

Amount of Venom

The quantity of venom an insect injects also affects the intensity of the sting. Some insects deliver only a small amount of venom, while others can inject a larger dose. Generally, the more venom enters your body, the more painful the sting. That’s why a sting from a small bee might be less painful than a sting from a larger hornet, even if their venoms are equally potent.

The interplay between these two factors—the type and amount of venom—determines the severity of a sting. Different insects have evolved distinct venoms and stinging capabilities based on their size, environment, and threats. It’s nature’s way of maintaining balance.

However, remember that the best way to avoid the pain of a sting is to prevent stings altogether. Be cautious around insects and respect their space, as they generally only sting to defend themselves.

Trey Clawson

July 3, 2023
Trey is a Certified Applicator and an Authorized Speaker in the State of Texas. He has a wife of 13 years that he is madly in love with and 3 kids that he adores. He likes bringing home random pest findings, like nests and such, and dissecting them with the kids at the kitchen table! (It’s worth noting however, his wife is not too fond of him using the kitchen table…)

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