10 Horrifying Insects That Will Make You Reconsider Ever Visiting Japan

Japan is known as the land of everything kawaii these days. Even ugly things are made cute (check out Rachel’s article on kimokawaii). However, outside of the purikura booths and cosplay cafe’s of Tokyo and other large cities exist the brutal mountains of Japan where the wild things live (don’t worry though, sometimes they live in/near the cities as well!). I’m personally fascinated by these kinds of things, especially spiders (which have some kind of vendetta against me), so I thought I’d learn about the insects that help to make Japan a moderately terrifying place.

Here’s my top ten list of pants-peeing creepy crawlies that will give you a scare if you weren’t expecting them. On that note, here’s to hoping that you don’t run into too many of them on any visit to Japan you might take.

10. Cicada セミ

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“I am so kawaii.”

Even though they are commonly found in many regions of the world, cicadas are somewhat of an iconic symbol of Japanese wildlife. Their sounds are often played as background noise in Japanese movies and referred to in famous works of literature. Some people love ‘em, some people hate ‘em, but you can’t deny that they are kind of creepy. Before cicadas become obnoxious “tree crickets,” they live underground as nymphs (yes, I do mean mythological women). Once they hit puberty and start arguing with their parents, they burrow their way out of the ground and find a nearby place to molt where they leave their nasty exoskeletons for children to collect.

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Groups of cicadas can produce sounds up to 120 decibels – that’s louder than an Ozzy Osbourne concert. Cicadas are harmless, but if they mistake you for a tree they could grip you with their spiky legs and beak in an attempt to eat from you or lay their eggs on you. Overall, these are pretty cool, but they can definitely be freaky, especially with the whole molting thing.

Bonus Tip: They also die in great numbers, too. And, when they die, they fall from the trees like sakura blossoms in spring. Suffice to say, dead giant insects falling on you is a momentary panic-inducing situation.

9. Stink Bug クサギカメムシ

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Image by 一休さん

Kusagikamemushi… that’s a pretty big name for such a little stinker. Like fruit vampires, these bugs roam the land sucking the fluids from any vegetation they can find with their straw like appendage, called a proboscis. They usually don’t bother humans, but if you touch this little dude or intimidate him, you’ll end up covered in a nasty, cilantro-like odor. So, unless you want to walk home smelling like Mexican food (I know I do), I would avoid running into this bug.

8. Denki Mushi イラガの幼虫

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Image by 野歩朕

Awww isn’t it a cute little caterpie? That is, until you touch it. Run into one of these guys and you’ll be feeling like you stuck a paper clip into an electric socket. Although these bugs don’t really have electric powers (like real pokemon), the chemicals they release are said to feel remarkably like an electric shock. That’s why they’ve picked up the nickname “denkimushi” (electric bug) in Japanese. In short, these things are about as cuddly as a cactus. :D

7. Cockroach ゴキブリ

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Image by golden-rod

Cockroaches. That’s all I really have to say, isn’t it? These things are disgusting even without knowing much about them. But if you really must know, cockroaches can carry 33 types of bacteria, six kinds of parasites, and seven pathogens (that we know of). They are said to be the only thing that can survive nuclear warfare other than Twinkies, which may not be true, but they are hard to get rid of. Cockroaches can go 45 minutes without breathing, live a month without food, and sustain themselves off the glue from a postage stamp. And the worst part is: they really will eat your children. Or, at least your child’s hair, toenails, eyelashes, and eyebrows.

6.  Japanese Mountain Leech ヤマビル

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Image by Alpsdake

Leeches. Never a good thing, except maybe for sucking satan out of demon-possessed 12 year olds. Most of the the time people run into nasty encounters with leeches in bodies of water, but these little suckers are perfectly comfortable on land. Mountain leeches have a seemingly harmless inchworm-like gait, but when they really mean business they can come after you by somersaulting at high speed. They even climb trees to drop down on unsuspecting victims and hide in your shoes (only slightly disconcerting). These leeches are equipped with a sucker on one end that helps them to get get around and size up their victims. On the other end, they have strong jaws lined with thousands of tiny teeth which they use to inject you with an anti-coagulant and numbing compound so they can unknowingly feed on your blood- oh, and chew through your clothing . Yikes.

Another type of leech that lives in Japan is the Giant carnivorous mountain leech. These leeches, also comfortable above the water, could easily be mistaken for snakes due to their large size and the way they slither across the ground at high speeds in search of prey. The good thing is, these leeches don’t suck blood like you might think. Instead, they use their huge jaws to swallow worms whole. How charming.

5. House Centipede ゲジゲジ

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Image by Scott Akerman

The gejigeji looks downright prehistoric. If I didn’t know any better, I’d think I had been thrust into some horrible B-class syfy movie (THE LEGS). Luckily, however, the gejigeji is just a harmless little guy, unlike its evil cousin the Japanese Giant Centipede. All he wants is to be loved. That must be why he has so many long arms – to hug you with.

Gejigeji are actually good to keep around your house – if you can stand them that is. They eat all the other critters you don’t actually want around.

4. Giant Centipede ムカデ

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Image by Tod Baker

I don’t usually find centipedes scary (except maybe The Human Centipede), but this one deserves to be feared. A symbol of evil in Japanese mythology, the mukade can grow up to a length of 38 centimeters (that’s 15 inches!). It doesn’t just look scary, though, the mukade is poisonous too. If it gets its little chompers around you, you’ll be in a world of pain and probably have some pretty decent swelling. It usually won’t kill you, but get a bad enough bite and you’ll be straight to the doctor. So, I don’t recommend tempting one of these bad boys if you are trying to pull a Ferris Bueller. In Japanese lore, it is said that the mukade must be burned to get rid of it. So seriously, KILL IT WITH FIRE.

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Image by CookieM

Fire? Why not just barbeque them up? That’ll get rid of them. Who wants some spicy mukade? Mmm mmm, crunchy.

3. Huntsman Spider

アシダカグモ

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Image by pamsai

NOPE. Nope nope nope nope. That was my first reaction to this creepy crawly, if you can even call it that. I feel more inclined to call it SOMETHING FROM MY WORST NIGHTMARES. Pictures of this guy end up all over the internet, and for good reasons. It’s terrifying. More like a dark, hairy crab, the Huntsman Spider, or ashidakagumo, doesn’t spin webs to catch its prey. Instead, it uses its lightning-fast legs to chase down its food, beats it into the ground, then rips apart the its poor victim for its next meal. Oh, and did I mention they get up to a foot wide? I’m just sayin’, my cat wouldn’t even eat this. Check it out:

The only good thing about this spider is that its not poisonous to humans. Phew! Another thing I don’t have to worry about, except for the whole peeing my pants every time I see one thing.

2. Jorou Spider ジョロウグモ

Huge Queen Spider

The Joro spider is a member of the golden silk orb-weaver genus. If you couldn’t tell by the crazy rainbow jacket this dude flaunts, the Joro Spider is poisonous. Getting bit by one is about the same as getting bit by a black widow – not deadly, but not a kiss from Shirley Temple. Just looking at the Joro gives me the heebie-jeebies. I mean, look at it’s butt! You’d think the “golden” part of its name comes from its golden body, but actually it refers to the spider’s golden web. It’s as dapper as it is horrifying. People have even attempted to make high-end clothing from the Joro’s golden thread. Looks like Rumpelstiltskin’s got a new employee!

These things are so creepy, they exist in Japanese folklore as evil seducers. Jorogumo (referenced to in my favorite game, Okami) are said to have the ability to transform into beautiful women and ensnare unsuspecting men who they then string up for their next meal.

SekienJorogumo

So, what does this thing really eat, if it doesn’t eat your husband? How about birds? Yeah, that sounds good. That being said, I wouldn’t touch this thing with a 40 foot pole.

1. Japanese Giant Hornet

スズメバチ

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Image by onezilla

Hide your kids. Hide your wife. Hide your husband, too, cause the suzumebachi’s in town and he’s not happy. Wasps aren’t generally considered to be pleasant company, but this thing is on a whole other level. In Japanese, the “Japanese Giant Hornet” is known as oosusumebachi, which literally means “giant sparrow bee,” and we might as well call these things sparrows ‘cause they are that freakin’ big. Not only are these things huge, but they will also spray you in the eyes with a flesh-melting poison if you catch them on a bad day. Great. Oh, and did I mention that this poison is filled with pheromones that signal the rest of the hive to hunt you down and sting the living crap out of you until you can no longer move your limbs? Dear lord, I seriously wish guns were legal in Japan just so I could defend myself against these things. Oh, did I mention that they can fly up to 50 miles a day? They will track. you. down.

Suzumebachi are so brutal that they’d do Metalocalypse proud. Not only are they a threat to humans, but they treat other insects worse than Rebecca Black after her release of Friday. “Oh, our babies need food? Let’s feed them other insects’ babies.” says the suzumebachi. But that’s still not metal enough. The suzumebachi often raid beehives to collect bee larva for their young. Sounds difficult? Not for the suzumebachi. It only takes one wasp to find a beehive, signal over a few friends, and then it’s party time. Thirty suzumebachi can rip apart thousands of bees like it’s a Sunday walk in the park.

Damn nature, you scary.

You’d think wasps like these would only live in the most desolate regions of the globe, far away from karaoke bars and bubble tea. But no, the suzumebachi lives around many places in Japan, even the outskirts of Tokyo, and they claim as many as 40 lives a year. This monster ain’t nothin’ to mess with.

Well, I may have wet my pants now, so let’s call this a wrap. Let me know which one of these gives you the most nightmares. If you are a masochist and find this stuff interesting like me, I recommend following the Real Japan Monsters YouTube channel – that dude be cray. In the meantime, I’m going to go seal all my doors and windows with duct tape. They can’t get through duct tape, can they? No, seriously, can they??

Sources:
The 5 Most Horrifying Bugs in the World
5 Disgusting Facts about Cockroaches
Real Japan Monsters

  • http://www.twitter.com/christaran Chris Taran

    Great timing on this article as I’ll be leaving for Japan tomorrow. Now I have the strangest mix of excitement, terror, and anxiety heading in! :p

  • zachary T

    So Japan is like a secret Australia? everything wants to scare and kill you, its just no one talks about it? thanks Japan….thanks a lot.

  • Tylea

    Why did I read this? I got the eeber-jeebers now…The suzumebachi just made me cringe the most. The leeches? I’m just never going to the mountains or lakes. Nope. The spiders and centipedes? No. Just no. I can’t… :<

  • Alexa VanDemark

    Oh great, I’m studying abroad in Kyoto this year and I was all happy and fearless…now I’m terrified of the spiders. Sweet lord, I hope bug spray freaks them out.

  • DAVIDPD

    Yay For Micro Evolution!

  • http://www.codewidow.com lotusflwr

    Bless you 1,000 times over for softening the freaky, gross, panic & flail-inducing pictures with all the memes?!? ever.

    Also, since I’m already experiencing lovely creepy-crawly feelings in my hair and all over my skin after reading this, perhaps I can turn it into a learning experience and find out if the Japanese have a word for that? I know muzumuzu means itchy, but is there a better Japanese equivalent for creepy-crawlies/skeezed out/heebie jeebies?

  • http://amazingtemples.com/ Christian Schoen

    Wow – I like most the giant mountain leech … seems not to be as dangerous as the other guys…

  • Cody Dalton

    The orb spiders venom isn’t as powerful as black widows, so they aren’t really much of a concern (although jogging through their webs is unpleasant to say the least). I’ve seen some suzumebachi, a mukade, several gejigeji, cockroaches, and of course cicada are ubiquitous during Japanese summers (I like the sound they make, it’s very summer-y to me now)…but I live in what many people consider a semi-inaka (countryside) area. So if I haven’t even seen all of these then I imagine your chances are pretty low on a short visit here!

  • Cody Dalton

    Kimochigawarui. It’s what everyone says here. Never heard muzumuzu suru actually used though.

  • simplyshiny

    That stink bug looks humongous. Horribly Humongous. We had a horrible infestation of them a few years ago. At one point I counted nearly 30 ABOVE MY BED. Another time, I tried to drink from my water bottle beside my bed in the middle of the night and ended up with one in my mouth. I HATE STINK BUGS. Far more so than cicadas, which I haven’t seen in a while, but should be making a reappearance soon, I believe. Cockroaches I can deal with, I’ve seen those stinging caterpillar things before, I think. That house centipede thing could grow on me, the rest though? No thanks.

  • Mami

    OH MY GOOOOOOSH! Too creepy (:;)

  • Gee337

    As someone who hates insects, I fear for my life. Insects here are just so freaking big, compared to what I’m used to.
    My worst experience, that just happened two days ago: I was going to the toilet around 3AM – and apparently, a cicada made it into the dorm and was in the hallway… as I was going back into my room, it started flying around and making it’s sounds. It was… quite loud. Luckily, no one was around to witness me throwing away all my pride and running back into my room panicking.
    I really hope I will never ever see the hunstman spider.

  • André

    Leaving for Japan this saturday, thanks a lot for the information, now I can have nightmares.

  • corinnajune

    From the things I’ve read, Joro spiders aren’t particularly dangerous to humans. They are related to the spiders we call “Banana Spiders” here in Florida, which have very similar look/coloring. I love my resident Banana Spiders- they are actually pretty awesome. They catch a lot of the things I AM scared of, so I let them be. Their webs, however, are REALLY annoying to run into- VERY STRONG.

  • igo

    Nice, I’ve seen four of ten in just 6 weeks of holidays. By the way, I think that six of the bugs are not really insects.

  • Rachel

    There are cute bugs and there are get-the-hell-away-from-me bugs.
    Examples of cute bugs: grasshoppers, caterpillars, ladybugs, mantises.
    Examples of get-the-hell-away-from-me bugs: ALL OF THESE WHY WOULD YOU EVEN DO THIS I DON’T UNDERSTAND

  • Aya

    CAN’T UNSEE

  • Toumad

    Anything but centipedes… why this…

  • Mahou Keisatsu

    Holy god. What is even wrong with this post of today why Sarah I won’t have sleep for tonight why

  • Komodovaran
  • Jessica Marie Olmstead

    Ive seen the golden spiders….won’t go near them plus I saw a cockroach while I was out there. Guess I just have to be careful when I live there :/

  • Yikes

    I look forward to the author’s column about Japan’s giant crows.

  • Sarah

    YESSSS.

  • KaoriCamellia

    I am deeply, deeply frightened by wasps. Allergic to most vespids, so… I’ve seen one of those suzumebachi before. CIWS was invented for taking care of those.

  • Jesse Cadd

    Fun times: type “giant japanese” in google and look at all the suggestions…hours of fun!

    My personal anecdote: We had lived in Japan only a few months and it was spring, so things were beginning to warm up. We had heard there were occasional insects in our house from the previous tenants, but we slept on the second floor and I wasn’t too concerned. We don’t mind spiders (as long as they aren’t in our room when we go to sleep). My wife and I sleep on futons on tatami and we had just gone to bed and turned off the lights. I was lying there when I felt something drop onto my head. Instant horrified reaction as I flung it and myself around the room. I turned on the light and saw (what I now know was a fairly small) centipede. I attempted to murder it post-haste, and the details are bit fuzzy after that. I’ve never had that happen since, but we have had the occasional centipede smuggle itself in after we hang our futons out to freshen them up. Later that spring, I spied one on my wife’s clothing (in the house again). She fur-reaked out and flung it across the room where it attached itself to the wall. This one was *not* small. It was big. Large….ooooookii! We stared at it wondering how on earth to kill it as it I could see it wrapping its long body around any tissue I might use to try and grab it. I had the bright idea of using a knife to cut its head off thinking we could then dispatch of it easily. Hah! Turns out the body can function just fine for quite a long time without the head! Eventually we got it down the toilet, but jeez!

    Nothing has quite lived up to those first couple of experiences. We’ve had the occasional cockroach, but I’m used to those having grown up in the Philippines. We let the big spiders roam free, again, as long as they aren’t *in* our room when we go to sleep. No gejigeji’s yet, and thank God, no giant hornets, though I have friends who have encountered them.

    I found that mountain leech to be one of the most disturbing things I’ve ever seen personally…

  • Sarah

    What about the denkimushi? It’s cute, right? lol don’t hurt his feelings!

  • Johann Gambolputty

    Yeah but you don’t need to be prepared for the cute ones. Google “huntsman toilet paper” and you’ll understand why I’m glad to know about that thing’s existence BEFORE visiting Japan >_>

  • BANE McNut

    DON’T WANT TO UNSEE~ <3

  • Rachel

    WHY DID YOU MAKE ME DO THAT

    NOPENOPENOPENOPE

  • Rachel

    okay, that one is kind of cute (′ʘ⌄ʘ‵)

  • Johann Gambolputty

    Note to Self: Pack toilet paper

  • Robpoida

    My girlfriend and I are Australian and have been in Japan for 4 months now. We can safely say that Australian bugs have got NOTHING on those in Japan. We’ve had one of those house centipedes in our bed, which is now lurking in the room somewhere after I tried to get it out the window (we’ve named her Sally). Yesterday we had the bright idea to go bushwalking up near Sapporo. We got chased by a couple of those bloody giant hornets, and practically eaten alive by thousands of horse flies / mosquitos / a bunch of other unidentified things. The bugs here are just incredibly persistent. It doesn’t matter how many times you swat them away they just hang around you face (trying to fly into your eyes, we both squashed several in ours while blinking yesterday). Australia has hunstman spiders too, but they seem a little different. They’re freaky as to look at but I think they’re one of the meekest spiders ever. They keep to themselves and get rid of bugs and things for you. As long as they aren’t in the bedroom I usually let them be.

  • Luke

    That’s why I want to visit Japan during the winter time when those things aren’t around. (I’m from Canada so I think I can handle a Japanese winter :P )

  • Ryan Bounedara

    The Metalocalypse references make me feel a little better. A little… ;;>_>)

  • http://zoomingjapan.com/ zoomingjapan

    Haha, I wrote a similar blog post a year ago: http://zoomingjapan.com/life-in-japan/insects-and-other-pests/

    I think it’s important that people know about these before they come to Japan and also how to deal with them.
    On the other hand you won’t meet all of them very often.
    Very common are cockroaches and depending on where you live mukade (centipede).

    Personally I’m afraid of bees and wasps in general, but the “suzumebachi” is sooooooooooooooooo huge and aggressive.
    One of my co-workers was attacked by one. Luckily he could get an antidode quickly enough.
    Every year a lot of people die because of that creepy killer hornet! ;___;

    For all the ones I mentioned above, it’s good to know if you know how to deal with them, so if you’re interested you can read about it in my article.

    I had the first cockroach of the year in my apartment last week and the first mukade yesterday night! T____T ….

    There are a lot of other creatures around. Snakes are common as well depending on where you live.
    Really dangerous are only the ones in Okinawa, the Habu snake.

  • http://zoomingjapan.com/ zoomingjapan

    Just be careful if you wear shorts that no mukade is crawling up your legs! ;)

  • http://zoomingjapan.com/ zoomingjapan

    I’ve seen a few huntsman spiders. I usually don’t mind spiders, but that one is just too big and too gross! ;___;

    I don’t mind cicadas and luckily never had any issues with them.
    I find cockroaches disgusting, but have learnt to deal with them.
    I hate mukade and I fear suzumebachi like nothing else! :(

  • http://zoomingjapan.com/ zoomingjapan

    Well, luckily most of the insects in Japan are just huge and there are lots of them, but won’t be able to kill you.
    Mukade can do some harm.
    The only one to really look out for is the “killer hornet”, suzumebachi.
    They are extremely aggressive and will even chase you!

  • http://zoomingjapan.com/ zoomingjapan

    I hate mukade and geji, though luckily the latter hasn’t made an appearance in my apartment (yet).
    I usually use burning water on the mukade and then cut them with a knife. I tried a shock-freezing spray, but it doesn’t work.

    I wonder how you managed to live without ever meeting any killer hornet. No matter where I go or where I live, they’re always there. And they’re my greatest fear! Even before moving to Japan 6 years ago my biggest fear have been wasps, bees and the likes. Knowing that there is a super huge one in Japan that can even kill you, didn’t really help! ;_;

  • http://zoomingjapan.com/ zoomingjapan

    I’m also afraid of them and I’ve met them many times. They’re so huge and all I ever do is running away as fast as I can.
    What is “CIWS”?

  • http://zoomingjapan.com/ zoomingjapan

    You can’t really be careful.
    These creepy crawlers will visit you no matter what you do. You can just prepare yourself and make sure you have all the means to get rid of them as quickly as possible! :/

    Hokkaido has a cooler climate and thus a smaller number of insects compared to other parts of Japan.
    Living in the countryside also ensures that you’ll get more creepy crawlers.
    I’ve only ever lived in the countryside and I even had bats and mice inside of my apartment! -___-;

  • http://zoomingjapan.com/ zoomingjapan

    Oh, so you prefer to be chased by the killer hornet and then die? -_-

  • http://zoomingjapan.com/ zoomingjapan

    Most of these are only an issue from April – November …. ahem, ahem.
    You just need to learn how to deal with them! ^^;;
    Enjoy Japan! :)

  • http://zoomingjapan.com/ zoomingjapan

    I had the first centipede of the year in my apartment yesterday and the first cockroach last week.
    It’s just the same as every year.
    Last year I even had bats and mice inside.
    That’s Japan for you! T_T

  • Bananas

    I live in the Southeastern United States, and I am horrified to say that a striking number of these things have made it here, including a lovely encounter with a Japanese hornet at my father’s house (NOPENOPENOPE). Seriously, Japan…can you come take your death animals back? We have enough of our own. :/

  • Vicky

    … Greeeeeeat. Really wish I didn’t look at this. Because now I know the two giant spiders I saw (in two different towns) were actually poisonous. And that’s terrifying. You see these things and you think “the odds of seeing those are unlikely, I’m OK”. Well, apparently not! Here’s a picture I took.

  • Sarah

    Was I the only one who wanted to both laugh and scream at the image of a leech SOMERSAULTING TOWARD ME AT HIGH SPEED? (Great article, though, even if it will give me nightmares. That Giant Hornet is HORRIFYING, GOOD LORD.)

  • Lesa Kenner

    When I lived in Japan I got attacked by a Huntsman spider in my bathroom. Yes my bathroom. He jumped on my head and well I’m lucky to be alive. He didn’t make it though. My Japanese boss then told me that “they travel in pairs” sure enough the spouse came to visit the following week looking for it’s mate. I spent the whole week taping up all possible entryways into my apaato. It’s still hard for me to talk about. *shivers*

  • http://www.littlegaijin.net/ アナ

    WHY did I read this… WHY.

  • KaoriCamellia

    It’s a system that shoots down missiles on a naval ship. Missiles, suzumebachi,both equally awful.