
Whatever you do, don’t smack it!
Besides things like anime, kimono, tea ceremony, and more, Japan is famous (or should I say, “infamous”) for its insect population. Cockroaches, ants, and bees grow to frightening sizes and can be as harmful as they are gross, and the summer in particular is dangerous when it comes to bugs. One of the critters you should be avoiding at all costs is the yakedo mushi (火傷虫), or “burn bugs,” which have the scientific name “Paederus littoralis.”
These “burn bugs” are part of the Staphylinidae type of insects and emerge to terrorize Japan in the summer months. They’re about 6-7 centimeters (2.5 inches) in length, and their heads and behinds are black while their middles are orange in color. They look a little like ants.
What’s frightening about them is their, well, everything. One nasty touch from one of these little buggers can have your arm looking like this.
https://twitter.com/jQdVh6UHKJiOYdV/status/754396437887102976They can excrete their venom in an almost thread-like manner that sticks to your skin with a burning sensation.
If you’re reading this, maybe it’s because you have one on your arm right now. Before you panic, read some of these tips on how to avoid getting a very painful and unattractive welt.
- First of all, don’t smack it. That may work for mosquitoes, but not for burn bugs. Try blowing air on it or gently transferring it off of your person.
- Try as hard as you can to not touch it directly, since its venom transfers through direct contact. Even dead burn bugs carry poison!
- So, what should you do if you end up touching one? Run the affected area under water as soon as possible, just like you do with regular burns.
Be aware of harmful bugs in Japan (and wandering Pokémon hunters) and have a safe, burn-free summer!

Better than mosquito repellent – The most eco-friendly (and spiritual) way to repel pests in Japan
W.T.F. Japan: Top 5 creepiest Japanese insects 【Weird Top Five】
Famous Tokyo cherry blossom spot installs view-blocking screens to fight overcrowding[Video]
Picturesque Tokyo park plays host to millions of flowers and soap bubbles this spring
Uniqlo announces new T-shirts for One Piece, Naruto and more for manga publisher’s 100th birthday
Rumors say this is Japan’s very best McDonald’s branch, but what makes it special?[Taste test]
Final Fantasy invites you to adventure in Fukushima with Fukushima Fantasy Chocobo fun[Video]
Japan now has a special desk for people who work at home with a pet cat[Photos]
Fatal stabbing at Pokémon Center in Tokyo reignites concern over rising stalking cases in Japan
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Create a tiny Ghibli anime world on your bookshelf with new miniature papercraft art kits
Japanese kindness restores our faith in humanity after a highway bus accident in Tokyo
Krispy Kreme releases Super Mario doughnuts in Japan for a limited time
7-Eleven Japan releases a crazy new viral sandwich: Chocolate Sprinkles and Whipped Cream
Japan now has a “for foreign tourists only” Mt. Fuji sightseeing train[Video]
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Studio Ghibli releases the My Neighbour Totoro tea caddy, with a magical self-closing lid
Stunning central Japan wisteria festival is like a purple fantasy straight out of a Ghibli movie
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Cherry blossoms begin blooming in Japan with record-early starts for sakura season
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says