Category Archives: Pantry Beetles, Grain Weevils, Spider Beetles, Meal Worms and Carpet Beetles   rss

What's That Bug? does not endorse extermination

Spider Beetles and Larva

Please identify these bugs!
Hello Again,
I am very anxious to ask you what are the bugs that I’ve attached. For me, but I am almost too upset to go into the full story of how and how many of these bugs I’ve found in my NYC apartment. I fear that they may be bad for my health. Can you please help me identify, or tell me what they are not. No one’s been able to help me.
Sincerely,
Russell Cowans

Hi Russell,
You have Spider Beetles, Mezium species. According to the Audubon Guide: “These minute, pear-shaped beetles superficially resemble spiders because of their long, thin legs and long threadlike antennae. Most are brownish and less than 1/4 inch long. … Both adults and their C-shaped larvae are scavengers, feeding on dried organic matter, including wook, museum specimens, desiccated animals,l dung, plants, stored seeds, and dried fruits. … Continuous generations as long as food remains available.” So, you had better find the food source. They will not harm you except for your sanity. Good luck.

Hello, It was sure good to hear back from you. I have one question though; do you really think the larvae in the picture is that of the beatle. Dare I say it; after moving into my brothers room, a room which was not clean out for some time-in the bottom corners of a very warm closet, in a dust collection I found scores of shed skin and living larvae. I would come to find this scene in various spots of my house. One area turned up the larvae always in a much smaller state-the bathroom, in particular; by the cat litter. I decided to examine the cat food box (newly bought from the local store) remembering what I read about meal worms etc. I turned over an entire box into my bath tub so that the white background would allow for easy detection of critters, I wasn’t completely surprised to see that out (along with the food) came baby larvae, fast movers, but poor on slick surfaces like a tub. Also, this would be the first time I came across black beatle like bugs. I wondered was the larvae that of the beatles and began wondering if they were spread by my cat! Online, the closet pictures to the black beatles I found and their larvae was a name of Tenebrio beatle and grain beatles? I wondered if I was dealing with two different bugs because, the red little guys I found long after the larvae. Around the time I found the attached picture, this is taken beneath my window sill, the red dots are too small for me to discern any recognizable features, only that I never found them moving always dead or still and they’ve shown up twice. I don’t know what they are/were. Funny, I moved into the living room onto a beach chair to get some sanity, I’m pretty sure they’re back by now.
Russell C

Expert Update: (05/22/2008) spider beetle errors
Dear Bugman,
I believe I had written earlier when looking at many of the spider beetle pictures. Almost all of the shiny brown, globular body, images are of Gibbium aequinoctiale and not Mezium species. There is a combined 2 image photo (finger and beetle & 2 beetles) of Mezium : the answer was posted by Eric Eaton, I believe. Gibbium species do not have a velvety covering on the thorax, Mezium species do. You should correct your website postings so people will have a better idea of what they have been finding. Best regards,
Lou
Louis N. Sorkin, B.C.E.
Entomology Section
Division of Invertebrate Zoology
American Museum of Natural History
New York

Dear Lou,
Thanks so much for resending this vital correction to our website. We really appreciate your expertise on this. We sincerely hope that addressing you with such familiarity doesn’t detract from your professional status.

Spider Beetles and Dermestid Larva

Please identify these bugs!
Hello Again,
I am very anxious to ask you what are the bugs that I’ve attached. For me, but I am almost too upset to go into the full story of how and how many of these bugs I’ve found in my NYC apartment. I fear that they may be bad for my health. Can you please help me identify, or tell me what they are not. No one’s been able to help me.
Sincerely,
Russell Cowans

Hi Russell,
You have Spider Beetles, Mezium species. According to the Audubon Guide: “These minute, pear-shaped beetles superficially resemble spiders because of their long, thin legs and long threadlike antennae. Most are brownish and less than 1/4 inch long. … Both adults and their C-shaped larvae are scavengers, feeding on dried organic matter, including wook, museum specimens, desiccated animals,l dung, plants, stored seeds, and dried fruits. … Continuous generations as long as food remains available.” So, you had better find the food source. They will not harm you except for your sanity. The larva is a Dermestid, possibly a Carpet Beetle. Good luck.

Grain Weevils

Tiny Black Bug pics on a dime…
Great website, wonderfull resource! We just moved into a house this week I have no idea what these are, but I found about 10 of them around my window this morning lying around barely moving.
Hope you can help,
jesse

Hi Jesse,
This appears to be some species of Grain Weevil, a type of Pantry Beetle. They infest stored grain products. It is possible they were somehow left behind when the previous tenant vacated. Without a food source, they are trying to get outside and are dying.

What's That Bug? does not endorse extermination

Superworm, not Giant Mealworm

what is this? Can you tell us about our adopted caterpillar, Pretty Legs? What is she? What does she eat? We found her in our house. Her front legs hurt when she crawls on you. My homeschooled 6 year old daughter is very curious about her. How soon should we release her? Thanks for you help!
Julie

Hi Julie,
We knew this was not a caterpillar, and most probably some type of beetle larva, but we checked in with Eric Eaton for more clarification. Here is his opinion: “The larva here looks like a giant mealworm, Zophobas spp, but I could be wrong. Most likely something in the Tenebrionidae.” So, chances are some stored grain product has some of your visitors siblings munching away. Here is a site on Raising Your Own Insects that will provide additional information.

Update (07/02/2007) Correcting an entry for Giant Mealworm
I wanted to let you know that it is not a Giant Mealworm (Tenebrio molitor) but actually a Superworm (Zophobas morio). I feed them to my bearded dragon every day! You can tell because they have a dark tail and head whereas Mealworms (regular and giant) are fairly uniform in color. This also explains why the woman said it hurt when the worm crawled on her! http://en.wikipedia.org/wiki /Superworm
http://www.superwormfarm.com /page3.htm
Naomi

Larder Beetle

Help, gross bugs
I’m hoping you can identify these two bugs for me. The small brown and tan ones are suddenly everywhere in my house, but mostly in my kitchen drawers and in the bathtub. The black and red ones are just mean looking, and these two were found dead in the bathtub, although I have seen them around other areas of the house. We live in an old farmhouse, and am hoping you are not going to tell me they are eating my house!!
Paula
Stockton, IL

Hi Paula,
Your small beetle is a type of Pantry Beetle, but we will write to Eric Eaton for more information. He just got back and writes: “The other is the larder beetle, Dermestes lardarius, a frequent pest of stored, dried meat if I recall correctly.”

Wonderful. Thank you. We just found a bunch of cat food that had been pushed under the microwave cabinet, so we are going to clean that up along with getting rid of some “trophys” that my sons and husbands have hanging, hopefully that will take care of the problem. Thank you for getting back to me so quickly!
Paula

Carpet Beetle Larva

would appreciate info on this bug
Hi,
I’ve been finding about 4 of these critters a week under my bed for a few years. On a couple of occasions, I’ve found them where I work, so they may be parasitic, and living off of me. The pictures show one 3 mm long by 1.5 mm wide, which is as big as they get. On three very rare occasions I’ve seen one (of a different sex, I imagine) which is twice as long, less round, and more conical, and with long hairs on its tail. All are brown on top, tan on the bottom, with 2 rows of legs, about 20 legs each.
They are very inactive, and quite robust, being able to survive 24 hours in the freezer, or 2 weeks without food. I’ve made a short movie that shows one using it’s many legs to flip over, and run away. It’s in Real Player format, and can be found on the web at http://www.angelfire.com/scary/redcom/bug.rm
Here are four pictures, next to a penny, with the last picture being of the rarer sex. Flipped over so can see legs underneath. Diff sex, looks smaller coz of camera distance, but is twice as long, conical, and with hairs on tail
Thx in advance for your help.
Luis.

Hi Luis,
Only one of your photos arrived, actually four copies of the same image. Based more on your description than your blurry photo, it seems you have Carpet Beetle larvae

Attagenus Carpet Beetles

ew gross! help!
Hi-
Please help: we have wormy, larva-y, crawly things in our apartment. They are on our bed covers, under them, on our drapes, and on our keyboards. I finally saw some crawling on the ceiling. I spotted on near a hole in the ceiling. We live in Brooklyn, NY, in the top floor apartment with drop-down ceiling right under the attic. There are lots of cracks and holes for them to crawl out of the ceiling. They are yellow-ish in color with dark heads and ends. At the back end, there are 2-3 long attenae. They have many many tiny legs (centipede-ish). They are very small– the larger ones are only a few millimeters long, the small ones are super tiny. I spotted a small black beetle-type bug a few days ago, which I’ve never seen before in this apt. But, only one, so I don’t know if the two are related… We’ve lived here for over a year and a half and have never had bug problems before. Are these bugs beetle larvae? Can you identify them from the below pics? Any tips on getting rid of them? Please help!
Thanks so much,
Angela in Brooklyn

Hi Angela,
You have Dermestid Carpet Beetles, probably genus Attagenus. Adults are shiny solid black or brown beetles. Larvae are slender with long hairs at the end of the abdomen. You first need to find the source of the infestation and then seek profesional help.

Carpet Beetles

I need help identifying a bug please The bug in the attached photo hitch hiked a ride into my home on a cowhide drum that appears to be from Africa. So far it doesn’t seem to have spread anywhere except the hyde on the drum. Should I be worried? Thanks for your help,
Frank Dottore

Hi Frank,
You should have the cowhide drum professionally dealt with since you have Carpet Beetles, a type of Dermestid Beetle. They will eat wool rugs and all types of animal hide. They are pests in museums where they do serious damage to collections. They might infest other edibles in your home.

Spider Beetle

house bugs needed to be identified–couldn’t find it in your website and others
Dear Sir/Madam,
We have seen these bugs in our home for two years. We live in an one family house. They seem to come down from the attic above. First we spotted them in the light-cover on our ceiling. We cover our ceiling lights with milky-colored plastic cover. The bodies of these bugs are collected at the bottom of the cover, and some of them were still alive. It seems that they were trying to reach the light, and die there, then fall onto the cover base. Sometimes we see them in our bathtub, trying to get some drink. They are very small, about 1/8 to 1/6 of an inch in width, not including legs and antenna. These images were caught while one of them is crawling on the ceiling. We don’t know what these bugs are feeding on. Could you please help us to identify these bugs?
Thank you very much!
Sincerely,
Hsiling

Hi Hsiling,
You have Spider Beetles from the genus Mezium. They can be found worldwide where grain is stored. They also feed upon dried remains of animals, woolens and other non-synthetic textiles. You will find more images and information on our Pantry Beetle page.

Expert Update: (05/22/2008) spider beetle errors
Dear Bugman,
I believe I had written earlier when looking at many of the spider beetle pictures. Almost all of the shiny brown, globular body, images are of Gibbium aequinoctiale and not Mezium species. There is a combined 2 image photo (finger and beetle & 2 beetles) of Mezium : the answer was posted by Eric Eaton, I believe. Gibbium species do not have a velvety covering on the thorax, Mezium species do. You should correct your website postings so people will have a better idea of what they have been finding. Best regards,
Lou
Louis N. Sorkin, B.C.E.
Entomology Section
Division of Invertebrate Zoology
American Museum of Natural History
New York

Dear Lou,
Thanks so much for resending this vital correction to our website. We really appreciate your expertise on this. We sincerely hope that addressing you with such familiarity doesn’t detract from your professional status.

Dermestid Beetle Larva

enquiry
Hi there,
i need your help to identify this bug i found in our kitchen. We have recently become infested with lots of them and need your help so that we can take care of the problem. They are found near our cats food in the kitchen and under the cooker as there are lots of cracks. i have found them where cats hair & dust is the most gathered, can you help?
thanks
Jimmy (UK)

Hi Jimmy,
You have a type of Dermestid Beetle Larva that include many Pantry or Larder Beetles and Carpet Beetles. The larvae can be infesting the cat food as well as eating the cat hair that accumulates in dark corners.

Grain Weevil

Found in Dried Noodles with mold!
This was the most descusting thing that Ive seen in quite a while. I was grabing a ramen and noticed a mold bag of noddles that had previously been opened. I took a second look and about One Hundred of these tiny little bugs where cralling and falling out of the bag! What are they and How can I get rid of them.
P.S. I decided NOT to eat the ramen.
Kyle G.
Austin, TX

Hi Kyle,
You found Grain Weevils in your Ramen. They are a type of Pantry Beetle easily identified by the snout. Obviously a female beetle got into the bag and layed eggs. This is just one reason there is an expiration date on foods.

Grain Weevil

what is THIS?
HI there, I know winter and spring bring all sorts of things into the home but ive never come across this typ of insect. They have been in every room in my home and im really concerned because i have a 2 week old baby. It looks like it may have a stinger???
Angie, Windham,NH

Clean out the Pantry Angie,
You have a species of Grain Weevil. They won’t sting, but they will eat grain products you keep in the kitchen.


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