Category Archives: Silverfish, Bristletails and Firebrats   rss

What's That Bug? does not endorse extermination

Bristletail

Found in my kitchen but not in my bug books
Sat, Mar 7, 2009 at 4:25 PM
I found this guy trapped inside a casserole bowl in my kitchen. It looks something like an earwig, but the pincers in front and what looks like likes wings on the back.
Rich Guthrie
upstate New York – near Albany

Bristletail

Bristletail

Hi Rich,
This is a Bristletail in the order Microcoryphia.  It is a primitive insect related to Silverfish.  Bristletails are nocturnal and secretive, generally found outdoors, though some species are found in houses.  Current taxonomy has Bristletails and Silverfish in distinct orders, but some old texts lump them together.

Silverfish

Strange Cockroach (?)
Thu, Jan 15, 2009 at 10:41 AM
I keep seeing these bugs in my bathroom which vary greatly in size. they run between being less than a centimeter in size to almost half an inch. They have long antennae coming out of both ends and it seems sort of furry around the head area and are yellow/gold with black/grey spots. It almost seems like an immature kind of beetle. I finally caught one to post a picture, they are unbelievably fast! Sorry the photo isn’t closer or more clear, they move like there’s no tomorrow! Can you please tell me what these creepy bugs infesting my bathroom are!?
Taylor W.
Denver, Co

Silverfish

Silverfish

Hi Taylor,
You have Silverfish, a common household pest. You can find much information online about the difficult to eradicate Silverfish.

Silverfish

identify bug
Wed, Oct 22, 2008 at 1:03 PM
This bug is found sometimes in the bath tubs or the sinks in my house so I assume they are coming from the drain. How can I get rid of them?
Rich
Tubs and Sinks in Bathrooms

Silverfish

Silverfish

Hi Rich,
This is a Silverfish, long considered a household pest.  The person who can figure out how to safely discourage them from entering and infesting homes will be an instant millionaire.

What's That Bug? does not endorse extermination

Silverfish

Hello! Identification help!
Hi,
I have attached a picture of a bug I have found in my room. Just curious if you know what it is and a little about it? Thank you so much!
Matt

Hi Matt,
The Silverfish is a primitive insect that is generally cosidered a household pest.

Silverfish

please help figure out what this is!
I find this bug in my master bathroom. It’s always crawling on the wall, only one by itself but i’ll see it once or twice a week. Sometimes it’s on the wall of my bedroom. Any idea what it is? Please!!!
Nancy

Hi Nancy,
We have received several requests in recent weeks to identify a Silverfish, but we have not posted a new image of a Silverfish since it was Bug of the Month in March 2007. Silverfish are primitive insects that can become established in homes and become household pests. They are usually found in dark damp areas and they are known to damage books by feeding on the organic glue and sizing in the binding and also do damage to wallpaper. They eat many forms of dry organic matter and will also feed on sugar, flour, breakfast cereals, fabrics and insulating materials.

Bug of the Month: March 2007 – Silverfish

What is this?
Hi, there,
Recently I can see this kind of bug everyday in my house. First I thought it is a House Centipede. But I found there are not enough legs. Please tell me what it is and how to control them (I killed 2-3 everyday). Thanks and regards
James

Hi James,
This is a Silverfish, a primitive insect. They are considered household pests. They are found in dark, damp areas, often the bathroom and basement. They will eat many things, but are fond of glue that adheres wallpaper to the wall and the glue in book bindings. Your timing was perfect and your photo quite gorgeous, so we are making the Silverfish the featured Bug of the Month for March 2007.

Silverfish

Help identifying a bug
Hi,
I attached a pic of the bug that has been plaguing my room. I found 8 huge ones around and under my bed (about 2″ long), and have found several smaller (0.5″) to bigger (1 – 2″) ones randomly in other parts of my room and in boxes. Could you please help me to identify it, and if so would you know any way to keep them from coming back? Thanks!
Kym

Hi Kym,
This is probably the most beautiful image of a Silverfish we have ever seen. If we could tell you how to eradicate the Silverfish from your home, we would be fabulously wealthy. They are found in dark warm places, and can squeeze through tiny places. They are found inside walls as well. They are generally considered household pests as they will eat starchy substances, including book bindings, fabric and wallpaper glue. They will also eat many food products including sugar, flour and cereals.

Silverfish

silverfish photo
After thoroughly searching your website, it seems I have silverfish in my apartment (although this is the first one I have seen). Just thought you might need another photo to post, as most of the pictures of silverfish seem to be from the top angle. I live in Richland, Wa (south-eastern part of the state), and this silverfish was moving slowly across the carpet, and would repeatedly jump away if I got too close to it. It did not seem to be a fast runner, as my shoe was still able to get the better of it. Thanks for your site, it has been very helpful!
Melanie L.

Hi Melanie,
In addition to the angle, your image shows the silver coloration nicely.

Silverfish

unknown bug sitting on walls
Dear Bugman,
I’m glad that i found your website, i live in Spijkenisse, The Netherlands and i keep on finding this bug in my house, always sitting on walls, or running around in the bathroom. For a couple of years now they seemed to be there. A few years ago they where only half the size and only apeared in the toilet and bathroom, always on concrete walls or floor. Now they also appear in my bedroom. I’ve tried to catch one but they are very fast. What i like to know is what this little bug is, can you help me?
Kind Regards
Nick Dutrieux

Hi Nick,
Silverfish are common household pests that are generally found in cool, damp, dark places, like the bathroom and under the sink. They have a reputation for ruining books by eating the glue in the binding.

Silverfish

Squirmies
Hi. I live in Michigan and was curious about this bug. I see them in the bathroom sometimes along the crack between the floor and the wall, they are very fast and hard to photograph,(I had this one trapped for about a week hoping he would die so I could get a picture). He is still alive although he did change from brown to a very light color and is about 2.5 cm long. Not as interesting as some of the other bugs you feature but I wonder what this one is and if he changes into something else. Thanks,
Melissa

Hi Melissa,
You have Silverfish, primitive insects and common household pests that are usually found in dark damp areas.

Silverfish

What is this bug?
Hello bugman,
I found a few of these in my apartment. Can you tell me what it is? Sorry for the blurred picture. It does not stay still. This one is about 0.5cm but I’ve seen 1 mm to 1 cm in size. Thanks much and have a wonderful New Year! From Toronto, Canada. Yoon

Hi Yoon,
You have Silverfish, a common household pest.

Silverfish

Whats that bug?
Hello bugman, I’m hoping you can help me.
I recently moved into a new apartment, and on the first night spotted a cockroach in the sink. It was between 1 and 2 cm long and was certainly a cockroach (no mistaking it). I had my unit sprayed and did not see any adult cockroaches since (its been about 4 weeks). I did however, find a strange smaller bug (5mm-10mm) in the bathroom on 3 occasions over the past 2 weeks. Once it was in the tub, the other 2 times on the floor. Each sighting was at night, however the bug did not run from the light. My first guess is it is some sort of cockroach nymph, as I’ve looked at pictures of cockroach nymphs and they seem to share certain features (including a horizontally striped body). On the other hand, the shape seems to be different, and my bug seems to have some sort of long tail. Can you tell me what my bug is? Is it a cockroach? I’ve attached a picture. I suppose its hard to tell from the image but the bug was relatively small.

Silverfish are primitive insects that like damp dark places like your bathroom at night. They are usually regarded as household pests and they will eat a large variety of organic substances. They have a reputation for destroying book bindings.

Silverfish

silver fish???
I came across your site about a week ago and was trying to find out what kind of bugs were the ones I kept on seeing in my new apartment. Especially by the base of the fridge and the nearby baseboards. I had just moved in and had never seen such weird creatures…seemingly intelligent…but nasty at first look, especially when they runaway soooo fast!!! it’s like roaches on speed or something…someone said they could be Silver Fish…is that right??? What else do u know about them??? and how do I get rid of them???? Also…can they carry any diseases??? how big do they get???
if it doesn’t swim why do they call it a fish??? I’ve enclosed a close up shot of the BUG….along with a portrait with its brother…or sister??? thanks for your help
Antonio

Hi Antonio,
This is indeed a Silverfish. They are among the most primitive insects living today. They are so called because their bodies are covered with shiny thick scales and also because of the way they wriggle when they run. they are slippery and difficult to catch. They feed on dry organic debris, and they eat paper especially if it contains sizing or glue. They can do considerable damage to books. They are not disease vectors.

Silverfish

What is that bug?
Hi,
I have seen this bug in our new apartment on many occasions. I cannot figure out what they are. They are pretty small. This is one is a little smaller than the head of a Q-tip. They have been found mostly on walls, in dark places, and more recently in the bathtub. Can you please help me figure out what this bug is?
Thank you so much!
Kita Hang
Minneapolis, MN

Hi Kita,
This is a Silverfish and most people would concur that they are household pests.

Jumping Bristletails

Whats My Bug?
Hello!
I hope these photos will suffice – afraid I cant seem to get a closer one. These little guys show up every time we put the sprinkler on or when it rains.They are in our house – as well as being all over outside. These little guys look grey, but have a very pretty gold to them in the sunlight. They are about 1/2 inch long. They are soft bodied and don’t seem to have a “shell”. They like to jump – about 2-3 inches – when you disturb them. They seem to like darkness and move a lot during the night. The top right photo is a scan of the underside of the bug. The rest are digital pictures taken with a webcam. I live in Williams Lake, British Columbia, Canada, and I appreciate any insight you might have as to identifying and controlling (read: keeping out of basement!) these little guys. Thanks alot!
Christina

Hi Christina,
You have Jumping Bristletails, Family Machilidae, relatives of Silverfish. They usually live under stones and leaf rubble.

Silverfish

What’s the bug in the pictures called?
Hi,
We were wondering what the bug showed in the pictures is called. We found it on a wooden fence in our backyard. They scurried out when we banged on the fence, and it was hard to catch them because they moved very fast.
Thanks a lot,
Pranav & Prag

Hi Pranav and Prag,
We usually get reports of Silverfish from people with household infestations. They are household pests that like damp dark areas, usually basements and bathrooms. As yours is outdoors, it is not really much to worry about. They are very primitive insects.

Firebrat

What this bug?
Hello there,
I was wondering if you could help me identify this annoyance in our household. I’ve had absolutely no luck with other sites. I’ve attached a picture for you take a look. Most of these bugs were sited by old heaters in our basement apartment. Any help would be appreciated!
Thanks,
Rob

Hi Rob,
You have Firebrats, Thermodia domestica, a type of Silverfish. It is a domestic species recognized by the mottled pattern. It frequents warm and even hot places, often in boiler rooms and near heaters. This habit leads to its common name.

Not Trilobites, but Silverfish

strange bug
Hi there, I’m from Edmonton, Alberta. I’ve found some strange bugs in my bathroom and I have no idea what they are. I don’t have a picture, but they are about two centimeters long, grey and they look almost exactly like trilobites (a prehistoric crustacean extinct hundreds of thousands of years ago) Here’s a picture of what a trilobite looks like, I hope it will help.
Carla
Thank you very much.

Hi Carla,
Since Trilobites have been extinct for millions of years, we can eliminate that posiblility. Silverfish are one of the most primitive groups of insects. They frequently are found in bathrooms. I’m guessing that is what you have. They are household pests which damage books.

Ed. Note: We just recieved this notice which probably identifies Carla’s trilobytes.
(01/16/2005) Carla & trilobites
Hi!
I used to live in Edmonton too and I can tell you that those sure aren’t silverfish. Carla has SOWBUGS. They are totally harmless but really creepy, and they love to live in your basement. They are also impossible to keep out of your home. Here is a great link to information on the sowbug, which is really a crustacean!
http://www.pma.edmonton.ab.ca/natural/insects/bugsfaq/sowbug.htm
Chelsea Smith
Ottawa, Ontario, Canada

Silverfish

Bug in my house – Please help
Dear Bugman,
I am so glad that there is a site such as yours. I don’t’ know what I would do if I didn’t find your site. I have a critter in my house that just baffles me. I don’t know what it is and I have gone through the books in the library and I just can’t find out what it is that is living with me. It’s about an inch long from head to tail. It has antenna on its head and the tail is like a tail of a fish or mermaid with another set of antennas. It swings form side to side. At the bottom, it seems to have multiple legs like a caterpillar? I’m really not that sure, it just seems to slide on the floor. Anyway, I find it on the walls, in my drawers in the kitchen, bedroom, bath, on my bed… I can catch it pretty easily, it doesn’t move too quickly, BUT it does have the capability to slide right into the WALLS. When I kill it by smudging it, it just seems to just flakes into pieces. I don’t see it all the time; I see one maybe every other day in a new location. Would you PLEASE offer any information to see how I can terminate it?

Dear S.,
You have Silverfish, a common household pest that is difficult to erradicate. They are very primitive insects. They will eat most anything, including the glue from book binding or wallpaper. We have gotten a report that Cloves when spread around helps to eliminate them.

Firebrats?

I love your web site!
We recently moved into a new house in the Phoenix, AZ area and we are seeing a lot of small (1/4 to 1/2 inch) bugs in the house that look a little bit like the silverfish that I used to see back in Virginia. They are very fast runners and they like to sit high up on the walls – particularly in the corners. They are beige with 3-4 brown stripes running from side to side and they have long thin antennae and what looks like antennae off the rear of the bug as well. They are extremely soft-bodied and, when threatened, their first response is to try to crawl deeper into the corner rather than simply run.
My camera will not let me zoom in close enough to get a decent photo, so I hope my description is adequate.
Thanks!
Bob
Peoria, AZ

Ed. Note: Several hours later, Bob sent this email.
After reading more about silverfish and firebrats, I suspect that these are the latter. Oddly enough, we don’t find them in the damp areas of the home as much as in the dry. We do not find them in sinks or drains or in greater quantities in the bathrooms or kitchen. Right now, I can find 2 or 3 of them in the living room and each bedroom, parked at the ceilings. The house stays pretty dry (<30% humidity most of the time) and there are no signs of moisture anywhere. They do not seem to be more active at night and they do not seem to hide during the day. The body is less carrot shaped than indicated in the drawings and photos I’ve seen on the web, with a slightly more rounded rear. My wife calls them “trilobites” because of their prehistoric appearance.

Hi Bob,
I am inclined to agree that you probably have Firebrats. They are very primitive insects and your wife likening them to trilobytes is interesting.