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What's That Bug? does not endorse extermination

House Centipede

… The average is 1-1 1/2 inches. Please help!

Horrified in the Heartland

Central Illinois

House Centipede

Dear Horrified,

If you are not seeing any cockroaches, it is probably because these beneficial and harmless House Centipedes are feeding upon them at night.  Should you succeed in eliminating all the House Centipedes, you may find that the Cockroaches and Bedbugs and Silverfish will proliferate.  Our advice is to learn to live in harmony with the House Centipedes and allow …

House Centipede

Striped, Gangly, 30-legged bug!
November 6, 2009
My friend Brandon sent me the photo along with this message: “I was pouring myself a soda next to the kitchen sink, when I turned around and spotted this on the wall. Not what you want to see behind you after you turn the lights on.”
Its body is about 3cm long, and including the legs it’s about 10cm long. I became very curious after seeing the photo, I just had to submit it!
Laura L. W., Roseville, CA
Lake of the Pines, Auburn, CA

House Centipede

House Centipede

Hi Laura,
What Brandon has labeled the Bug of Doom is a harmless, beneficial House Centipede.  This nocturnal predator is not known to bite people, will run away when the lights are snapped on, and will eat cockroaches and other undesirable household intruders if left alone to forage.

House Centipede eats Mouse

Huge Bug Killed Mouse, what is it?
September 30, 2009
We found this when we were checking our mouse traps yesterday. As you will notice, it is about the same length of the mouse and its thorax (don’t no if I am using this correctly, but the width of its body not including the legs) was as wide as a pencil. The mouse trap is still set, but the mouse is dead, presumably at the hands of the creature seen next to it, therefore, it is possibly posionous as well. Can you help us figure out what this is, and is it dangerous. P.S. Our house has many small centipide looking things, at the absolute biggest they are 2 inches, but very narrow, could this just be a mutated version of those?
Person who lives in the basement with this thing
Basement

House Centipede eats Mouse

House Centipede eats Mouse

Dear Person who lives in the basement,
WE are enthralled with your image of a House Centipede with a mouse.  Though we have not heard of House Centipedes preying upon small mammals, your photo would indicate that this is a possibility.  House Centipedes do have venom, but they are not dangerous to humans.

House Centipede Comment

Thank You
August 22, 2009
Your website is the greatest! I am pretty phobic about bugs, but am trying to overcome it (and avoid Needless Carnage). I awoke earlier tonight to the sight of a extremely large specimen of house centipede on the ceiling directly over my bed. I had seen this guy once before in my bedroom, and really didn’t want to have to deal with disposing of him–yuck. Thanks to your website, I’ve learned that he is actually beneficial, so I’m going to stop freaking out and just leave him be for the time being (unless he ends up in bed with me!). I also wanted to share this entomology link on house centipedes with you: http://ento.psu.edu/extension/factsheets/house-centipedes. I particularly enjoyed the quote from a 1902 source, which is both amusing and still accurate today!
Casey

Cicada Killer and Prey

Cicada Killer
August 5, 2009
Hello :)
I recently found this interesting wasp looking bug hanging from my balcony holding a cicada. Normally, I would not have known what the heck was going on here (some kind of inter-species fling??) But just that morning, I had read an article in the local newsletter about these interesting bugs, and decided to take a few pics. The article was lettiong members of the community know to not kill them or try to exterminate them, that they are a “good bug” (as most are, but still we have to squish or swat them out of fear)
After perusing your site for the identification of a house centipede (a very scary million-legged beast that was crawling around with our son on the floor. Unfortunately, after reading about it, I would have tried to put it outside to battle our spider problem…) I thought about the pictures I had taken of the cool Cicada Killer in action. I thought that they would be a great addition to your site and some good education for paeple that may not know about them. Sadly, the Cicada Killer could not keep holding on to the balcony with one leg, and dropped his prey, so I got a pic of that too (quite a pretty cicada actually).
Enjoy and keep doin what youre doin, and thanks for my newfound interest in bugs :)
Cool Bug Lover
Washington, DC

Cicada Killer and Annual Cicada

Cicada Killer and Annual Cicada

Dear Cool Bug Lover,
Thanks for sending us your great food chain images of a Cicada Killer and an Annual Cicada.  Female Cicada Killers are used to struggling with their large ungainly prey and we suspect she eventually arrived at her burrow with her catch.  The Cicada Killer takes advantage of gravity by climbing trees and other tall structures and gliding toward the nest with the prey in tow.  We are also gladdened to hear your local newsletter is promoting tolerance of Cicada Killers which terrify many of our readers.

Cicada Killer and Annual Cicada Prey

Cicada Killer and Annual Cicada Prey

House Centipede rescued because of WTB?

Found your site; saved a bug!
July 27, 2009
Dear WTB,
Today I had the wonderful experience of settling down comfortably at my computer…and promptly having a house centipede fall on me from my ceiling.
I’ve never seen one of these little guys, and as fond as I am of bugs (I tend to release them on my patio if they seem intimidating, or if my cat tries to eat them and I spot them before he can), I had a bit of a panic trying to figure out what it was. I only counted 10 legs (poor little guy seemed to have lost a few, according to descriptions of it having 15) and it didn’t seem too recognizable compared to anything else I’d seen.
Your website helped me figure out what it was, and what good it does in my household. I released it a bit aways from where I like to relax so it wouldn’t bother me, and it could hopefully go around eating pests I don’t like in my house. I’m so glad that I didn’t squish it out of initial fear; it didn’t do me any harm, no more than a little shock, and it turns out that it’s like a little buddy keeping things that bite away. But ,browsing through your site and finding it, did me a world of good. It’s always comforting to know what you have isn’t unusual or harmful, and whether or not you should be releasing it far away or just letting it mosey along on its own business.
I’ve been browsing your site and I love all the good you’re doing by spreading knowledge about insects and encouraging people not to kill them on sight. Hopefully I’ll find an interesting bug to take a picture of for one of your posts!
Many thanks for helping me identify my new housemate,
~Jenny~

House Centiped Rescue

Possible plot for a horror movie? I think not.
July 24, 2009
It was like a horror movie gone wrong. Margaret, our volunteer receptionist, came into my office to give me a postage stamp she’d saved for my Mum. At 80, Margaret has a few mobility problems and she’s really not walking too well at the moment. As she turned slowly to go back out to reception, she yelled, “What’s that? Oh my god, kill it, kill it!”
I turned and saw she was looking at the floor. I jumped up, expecting to see some monster ready to attack. At the same time, my survival instinct kicked in and I prepared myself to push Margaret out of the way and escape if I had to – compassion only goes so far, you know.
And then I saw it – the monster. In Margaret’s eyes it was so fat it looked pregnant. It was hideous, as far as she was concerned, and it had to die or it would kill us.
No, I told her, I wasn’t going to kill it. I had an empty plastic cup on my desk so I used that to scoop it up, though I did have to chase it to get it.
“Don’t let it come near me!” screamed Margaret.
With my head held high, hero fashion, I took my captive out to the scrubby area near the old warehouse along the street and set it free to live another day, thinking that if it wanted to, it would find its way into the warehouse soon enough.
Such are the everyday dramas at the Oswego NY Branch of the American Red Cross.
Susan, house centipede rescuer

Dear Susan,
Thanks so much for sending us your gripping account of an Unnecessary Carnage intervention.

Toe-Biter

Huge bug in Florida
July 21, 2009
We found this huge bug with wings and large jaws in our pool. It was almost four inches long. I carefully scooped it out of the pool and placed it in the grass, only to have my crazy weiner dog take a huge bite out of it! We felt really horrible being that the bug was so unique! What kind of bug is this?
Bug lovers in Florida
Gainesville, Florida

Toe-Biter

Toe-Biter


Dear Bug Lovers,
This is a Giant Water Bug, commonly called a Toe-Biter.  They are not aggressive towards humans, but they will deliver a painful bite if handled carelessly.  Toe-Biters are aggressive predators, and no small water creature is safe, be it fish, tadpole or insect.  In Thailand, Giant Water Bugs are eaten as a delicacy, and we are quite certain your pet found it to be quite toothsome.  Giant Water Bugs are not rare.  They actually are among our most frequent identification requests, along with House Centipedes, Potato Bugs, Boxelder Bugs and Pseudoscorpions.

Unknown Crane Fly from Japan is Ctenophora ishiharai

What is this flying thing?
July 20, 2009
Found this in the hall of our apartment complex. Thought it was a wasp of some sort until closer inspection. Still not sure though. It’s about 3-5 inches long and flies like a mosquito with its legs down. Not graceful like a dragonfly.
Curious in Japan
Zushi, Kanagawa, Japan

Unknown Crane Fly from Japan
Crane Fly from Japan

Dear Curious,
This is some species of Crane Fly in the infraorder
Tipulomorpha, but beyond that, we will need to seed professional assistance.  The feathered antennae are unusual.

Unknown Crane Fly from Japan
Crane Fly from Japan

Update
Hi Daniel:
I believe the unknown Crane fly (family Tipulidae) is in the subfamily Ctenophorinae and the genus Ctenophora (=Cnemoncosis).  Apparently there are nine representatives of the genus in Japan, but closest match I can find appears to be C. ishiharai. It is a very unusual looking crane fly. Regards.
Karl

Thank you for the help.  The antennae looked like those of several mothes.
Thank you again. My sons are huge bug collectors with a strict rule of not killing anything, even the centipedes that get into the house once in awhile.

 

House Centipede

Unknown Bug
July 19, 2009
Hello,
I found this bug outside my house and can’t figure out what it is. It has a one segment body. Fourteen legs on each side. A false set of antennae on the back side and it looks like it also has pinchers on the front.
Curious Bugman
Upland, California which is at the base of Mt. Baldy of the Inland Empire.

House Centipede

House Centipede

House Centipede

thx – do they bite?  are they poisonous?  thx in advance

You can find tons of info on the House Centipede online, and though all centipedes have venom, the House Centipede is not dangerous to humans and we have not gotten any reports of bites though we get 100s of ID requests per year.

Two Dead House Centipedes killed hours apart

PLEASE IDENTIFY THIS DISGUSTING BUG FROM PITTSBURGH
Mon, Jun 1, 2009 at 8:58 PM
Help Bugman!!!
This type of bug has appeared 3-4 times in our house in the past 1-3 weeks.
Tonight I had to take a picture of it after we killed it.
It’s got to be poisonous, it’s terrrrible looking.
It’s got like 6 or 10 legs and it is just uggggly.
We live right near a ‘forest’ and honestly, JUST now, my roomate discovered another one as I’m typing.
Help! PLEASE!!!
What should we tell our exterminator!!!
What should we buy to protect ourselves
Thank you so much
Henry
Pittsburgh, PA, in basement 2bedroom living quarter

House Centipede Smashed

House Centipede Smashed

Unnecessary Carnage?
Mon, Jun 1, 2009 at 6:29 PM
First, I must say there are some great pictures on your site. I scrolled through everything to try to find an answer, but I don’t even know what category this fits into. You may be able to tell that this bug was squished, so I’ll give you details the picture might not show. It’s just over an inch long and its antennae were quite long (almost as long as the body?) Unfortunately I can’t tell whether it has legs or not, but its underbelly appears to have several tiny ridges. The 3 vertical stripes are quite distinctive. I live in Windsor, ON (directly across the border from Detroit) and found it in my bedroom this evening. We’ve had some water damage in the house and also have carpenter ants (which I confirmed from several pictures here – thanks!). As well it has been humid here lately, so I’m not sure if that’s a factor.
Any insight you could provide would be appreciated.
Many thanks, Cheryl
Windsor, ON

House Centipede Extinguished

House Centipede Extinguished

Whoops! Cancel that email!
Mon, Jun 1, 2009 at 8:07 PM
Sent you an email earlier tonight entitled “Unnecessary Carnage?” and have discovered, to my embarrassment, that it is in fact a house centipede. I moved so quickly to kill the poor bugger that I didn’t see all of the legs (and wasn’t about to pick its corpse apart to investigate).
I’ve bookmarked your site so I can identify the next critter that makes itself known! ;-)
Many thanks (again), Cheryl
Windsor, ON

Dear Henry and Cheryl,
You have both unnecessarily exterminated a harmless House Centipede. They do look frightening, and though they have venom, the venom is harmless to humans in the extremely unlikely scenario that they might bite someone. You are far better off having House Centipedes patrolling your homes at night, dispatching Bed Bugs whose populations are on the rise, than you would be getting bitten by the Bed Bugs. No exterminators are necessary.

Unnecessary Carnage Update
September 18, 2009
My Unnecessary Carnage :(
I just found your website while researching the bug that I have squished (although not confirmed). I was sitting in my darkened living room in the wee hours of the night and caught some rapid movement from the corner of my eye. I quickly turned on a light and settled back on the sofa. Perhaps five minutes later I saw a large bug on my ceiling, which through your site I have identified as a House Centipede. I have seen other bugs of this type and have not been bothered as they are a fairly small bug and the only things that really bother me are spiders – I’m arachnophobic after a traumatic (for me and possibly the spider) experience but I don’t typically kill spiders just make sure I know where they are at all times, avoid them if possible or await their relocation or sadly, their ‘remo val’. Alas, I digress – back to the event from today. As I said I have seen others of this type of centipede before and they didn’t bother me but this specimen was quite large. It appeared to be at least 2 inches long, and looked much bigger/wider due to the many legs. Since it was on my ceiling and they move so fast I felt I had 2 options: leave it or try to get rid of it. I chose the second and grabbed my broom. I swatted at it and it fell to the floor, camouflaged by the beige carpeting and dashed for the nearest hiding spot, under a cabinet, with me swatting at it. I am not positive that I extinguished its life and kept a vigil for 5-10 minutes and didn’t see any signs of it. I think their speed would impede their safe removal in the future. Is there any way to safely remove them? I find bugs fascinating when I happen upon them outside. I am originally from Eastern Canada and have been living and enjoying the variety of bugs here – I was very excited to see a praying man tis and even a Hercules beetle. I don’t go out of my way to look f or them but feel the need to do something if I see them and I’d much prefer to escort them safely outside. I am sorry that I killed (maybe) the bug and would really appreciate some feedback.
Sincerely Apologetic,
Sarah in VA

Hi Sarah,
Thanks for your nice letter.  Since it came in as a comment not connected to a specific post, we are attaching it to two previous letters with the shared subject matter of House Centipedes killed unnecessarily.  First off, we are going to let you off the guilty hook because we don’t believe you killed that fast little bugger.  House Centipedes are quite evasive.  As far as advising you on how to best remove them, we don’t really have any suggestions.  House Centipedes seem quite fond of human domiciles, and they easily enter homes.  As you noted, they are so quick, it is difficult to capture them.  Dare we suggest that you just learn to coexist?  Since you are arachnophobic, the House Centipede will most likely help keep your indoor spider population under control as well as feasting on other undesirable intruders like cockroaches.

Another BUG OF THE MONTH MAY 2009: 17 Year Locusts, Scientists surprised By Unexpected Emergence Of Periodical Cicadas — Four Years Early

Large bee like insect with red round eyes.
Fri, May 8, 2009 at 10:21 AM
Hello. This morning while putting on my shorts, which contained this lovely thing, it stung me. I’m still not feeling well and have been unable to find out what it is.
We’ve live in this area for 4 years now, Central Virginia, and have never seen this before. Although now we are seeing them everywhere.
Kimberly with a very painful thigh.
South Central Virginia

Periodical Cicadas emerge early

Periodical Cicadas emerge early

Hi Kimberly,
We were so shocked by your report and photo of Periodical Cicadas or 17 Year Locusts, that we immediately did some research to find out what brood this was. We located a very interesting piece online on Science Daily that states: “The cause of these early emergences is unknown, but [Gene] Kritsky, in a paper to be published in the Proceedings of the Indiana Academy of Science, has found evidence suggesting that mild winters can affect the trees that young cicadas feed upon which in turn interferes with the cicadas’ timekeeping resulting in their emerging early. ‘This phenomenon might be another biological response to increasing temperatures,’ Kritsky said. ” Can this be yet another piece of evidence that global warming is affecting the environment in very telling ways? Even more puzzling is that you were bitten. Cicadas do have sucking mouthparts and perhaps you were mistaken for a succulent sapling. Cicadamania indicates this is Brood II on an accelerated emergence. Generally, every 14 or 17 years, there is a mass emergence of millions of Magicicada individuals. They breed, provide food for birds and other wildlife, lay eggs and die. The young hatch, bury themselves underground, live there for 13 or 17 years, and then emerge as a new swarm. The 17 Year Locust, Magicicada septendecim, is one of the oldest living insects.

We had one in the house last week and killed it not knowing what it was. They are huge!!!
I’m guessing the fact that I put my shorts on with him in them probably scared the bejesus out of him and that’s why he bit me? I know it freaked me out. I don’t think I’ve ever gotten out of my shorts so fast.
Right now, it just mostly itches like a dickens.
We live in Chase City, Virginia. (acutally a little outside of it) These past couple of months we have done tons of excavating. First for a riding ring, then we had to lay a new septic drain field and last we had to lay a new well line. (sucky year for our yard).
Could all of that digging brought them out? We’ve also had a very large amount of rain. To the point of it being ridiculous.
I don’t know what type of trees they typically live on. We have lots of Oaks. A few momosas, pines, magnolia’s, a black walnut and a peach tree. There’s also a willow and a persimmon. (the spelling may be off on that one) We also had tons of holly tree’s but we’ve cut most of them down over the past year due to overgrowth before we bought the house.
So far, our’s in the only house around that has them. And, now that we know what they are, we won’t be so afraid of them..as long as they stay out of my clothes.
Thanks for your help.
Kim

Hi Kim,
Thanks for the follow-up information, especially since we have made this unusual occurrence a secondary Bug of the Month for May. We doubt that your excavation had anything to do with this unseasonal appearance. With the Magicicada species, there are various numbered broods that have differing and overlapping ranges. Some like Brood X, the largest of the broods which emerged in 2004, are very wide ranging. According to BugGuide: “There are four species with 13-year and three species with 17-year life cycles. The 13-year species are more southern, the 17-year species more northern.” National Geographic News indicates: “There are at least 12 broods of 17-year cicadas plus another three broods that emerge every 13 years. ‘A brood is a class year, like the graduates of 2004 who will be graduating this May,’ said Gene Kritsky, a biologist and cicada expert at the College of Mount St. Joseph in Cincinnati, Ohio. A brood emerges almost every year somewhere, sometimes overlapping with others. But none of the emergences matches the pure size of Brood X, which includes three cicada species: Magicicada septendecim ,Magicicada cassini , and Magicicada septendecula .” You may have an isolated pocket of Brood II since none of your neighbors have seen any. It might be that this atypical emergence is just beginning, and your neighbors homes will soon also be graced with Cicadas. Though there is a mass emergence, all individuals do not burrow to the surface on the same day. We expect that this atypical emergence is just beginning, and we will be getting additional reports from other areas in the coming days. Once again, thanks so much for allowing What’sThat Bug? to be among the first websites to report this occurrence this year. National Geographic News also has this to say about the life cycle of the Periodical Cicada: “After the cicadas have counted 17 years—’we really don’t know how they count the years,’ Kritsky said—they are ready to emerge, which usually happens in late spring when the soil reaches a temperature of about 64 Fahrenheit (18 Celsius)” and “Some scientists believe the mass emergence of the cicadas is part of a survival strategy. With so many of them, they collectively satiate their predators within a few days. Then the billions left uneaten are free to mate.” In 2000, several hundred thousand members of Brood X emerged in Cincinnati. According to National Geographic News’ 2004 coverage: “The outbreak was big enough for the cicadas to satiate their predators, sing, mate, and lay eggs. ‘If [the year 2000 Cincinnati nymphs] come out in 2017, we will have seen the evolution of a whole new brood,’ Kritsky said. ‘That’s cool.’” So Kim, your yard may be ground zero for the appearance of a new brood.

Update: Can Cicadas Bite?
10 May 2009
We have been trying to find out this information, and there is a very amusing posting on Cicada Mania that indicates they may bite. It states: “Technically cicadas don’t bite or sting; they do however pierce and suck. They might try to pierce and suck you, but don’t worry, they aren’t Vampires nor are they malicious or angry — they’re just ignorant and think you’re a tree. ” We would be more inclined to believe that Kim was scratched by the clawlike front legs.

Bite Remedy Sat, May 9, 2009 at 11:38 AM
Aloha Daniel -
About the cicada bite – to help with itching.
This is usually a great toxin extractor – a poultice of water and baking soda.
Used it as a child on bee/wasp stings. Use it over here in HI for centipede bites.
Non toxic, everyone has it around their kitchen. Cool water temp soothes the bite zone.
Eliza
Ha`iku

Bite Update: cicada bite
Sun, May 10, 2009 at 9:49 AM
A few years ago, while working in a state park nature center in Indiana, a young (6 years old) entomologist brought his latest aquisition, a cicada, to show me. I picked it up and let it crawl on my thumb. When I was ready to give it back, the thing wouldn’t let go, and decided to press that sucking mouth part into my thumb. It was pretty painful. They can DEFINATELY bite (or perhaps STAB is a more appropriate term).
When talking to the public about insects, which I do often, I try to point out the difference between “does it bite?” and “can it bite?” Many insects can bite, but are very unlikely to do so. I suspect that a person could pick up 100 cicadas before they got bit by one.
I was once bitten by a praying mantis while feeding it a cricket. Part of the cricket dropped on the back of my hand and the praying mantis went down to eat it and chewed on my hand instead… and continued to chew while I yelped in a surprising amount of pain. I had to pry it off my hand with a piece of cardboard. It itched like crazy for days. I still have a tiny scar. This is an exceptional case, but makes me think twice about what we tell people, especially bug lovers, about what can and cannot bite.
Vince
Rum Village Nature Center
Indiana

Thanks Vince, for your first hand account. We are just guessing, but we suppose your thumb is considerably tougher than Kim’s thigh, and if the thumb skin could be penetrated, the thigh might be like butter.


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