Currently viewing the category: "Pantry Beetles, Grain Weevils, Spider Beetles, Meal Worms and Carpet Beetles"
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Subject: strange beetle
Location: southeastern Idaho
March 28, 2015 8:06 pm
I keep finding these beetles in my bathroom, and I’ve never seen them before.
Signature: mrs. Payne

Longicorns

White Marked Spider Beetles

Dear Mrs. Payne,
These are Longhorned Borer Beetles in the family Cerambycidae, and they resemble the Ivory Marked Beetle, Eburia quadrigeminata, but they seem very small and Idaho is considerably west of their range as listed on BugGuide, so normally we would discount that as a possibility but for one bit of information posted on BugGuide.  According to BugGuide:  “Notorious for emerging from furniture after as many as 10-40 yrs.  Delayed emergence of E. quadrigeminata was discovered from a birch bookcase 40 years old (Jaques 1918).”  Larvae from this family are wood borers, often remaining in the larval stage feeding for several years.  If infested lumber is milled and turned into paneling or furniture, it is possible that the larvae might survive, and individuals in that situation may emerge many years later and they are often considerably smaller than individuals that develop in nature.  According to BugGuide:  “hosts include a wide variety of hardwoods (oak, ash, hickory, locust, chestnut, maple, elm, beech, cherry); larvae bore in heartwood.”  It is possible that you bought a piece of furniture made from one of those trees that was milled in the normal range of the Ivory Spotted Beetle, and that could explain its presence in Idaho.  That is speculation on our part and the beetles you found might actually be a local species, but at this time, we have not been able to find a likely candidate.  We will seek a second opinion on this from Eric Eaton and our readers might also be able to provide some other information.

Longicorn

Whitemarked Spider Beetle

Eric Eaton Responds
Daniel:
Way too tiny for Ivory-marked Longhorn, but I see the resemblance otherwise.
These are spider beetles, family Ptinidae.  Probably the White-marked Spider Beetle, Ptinus fur.  Here’s the Bugguide page:
http://bugguide.net/node/view/88327
I rarely see these, but they are well-known “stored product pests.”
Eric
author, Kaufman Field Guide to Insects of North America
http://bugeric.blogspot.com/

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Subject: house insect
Location: aylesbury Buckinghamshire, england UK
March 16, 2015 5:50 am
Hiya i keep seeing these bugs around our home and just wondered what they are. There is not a lot of them and only see them every so often just dont know whether its a house bug or or something that crawling in through windows etc.
Signature: elliott tunbridge

Carpet Beetle

Varied Carpet Beetle

Dear Elliott,
This is a Varied Carpet Beetle, Anthrenus verbasci, a common household pest.  The larvae of Carpet Beetles are often found indoors where they feed on shed pet hair and other organic materials.  Adults feed on pollen and though they do not damage the home or its furnishings, they can become a nuisance when they are plentiful and they gather on window sills in an effort to get outside.  They often die indoors.  We have been receiving Carpet Beetle identification requests daily right now, and we have not posted a new image recently.  Your image is of a good quality, so we have determined it is time for a new Varied Carpet Beetle posting that can be featured.

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Subject: Found some bugs near our dogs bed…help?!?
Location: Northern Virginia/DC
February 4, 2015 10:19 pm
Found about 10 of these guys on the floor near the dog bed. None on the dog, some were dead. Easily visible with the naked eye, medium brown color, and looked like 6 legs with a set of feelers. Teardrop shaped body. Don’t appear to be blood filled. Please help!
Signature: Bugging out in Virginia

Smooth Spider Beetle

Smooth Spider Beetle

Dear Bugging out in Virginia,
This is a Smooth Spider Beetle,
Gibbium aequinoctiale, a common household pest that infests stored foods.  According to BugGuide, they are found:  “Mainly houses, flour mills, occasionally warehouses, hospitals, stores” and they feed upon a “wide variety of dead organic materials; may be a dry stored product pest.”  Do you buy bargain bags of dog food?  Was there a bag of dog food near the dog’s bed?  You may want to check the bag for the source of the infestation.

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Subject: Bug found in kitchen
Location: Austin, TX
February 5, 2015 7:01 am
I’ve been getting some kind of bites so I’m trying to find the culprit. Doing all the normal bed bug searching but hopefully another critter is responsible. I found this guy on the kitchen counter.
Signature: Austin guy

Grain Beetle

Grain Beetle

Dear Austin guy,
This looks to us like one of the Grain Beetles in the genus
Oryzaephilus, which includes two species that infest stored foods and have cosmopolitan distributions.  According to BugGuide:  “larvae and adults feed on damaged kernels of stored grains: barley, oats, rice, sunflower seeds, and wheat, plus flour, pasta, breakfast cereals, cake mixes, and various other processed foods” so you may want to check the items in the pantry to locate the source of your infestation.  In our opinion, they have no connection to the bites you are getting.

Will do. Thanks so much for the quick reply. I really appreciate it.

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Subject: WEIRD BUG PLZ READ
Location: Alabama
January 15, 2015 3:16 pm
I found this bug on the wall of my bedroom twice. I was wondering what it was.
Signature: Thanks, Kayla

Carpet Beetle Larva

Carpet Beetle Larva

Dear Kayla,
We have been away from the office for a week and your email is the first we read.  Your subject line attracted our attention.  This is a common household pest known as a Carpet Beetle Larva.  They will eat many organic substances in the home and they have adapted well to cohabitation with humans, though humans do not benefit from the relationship.  Adult Carpet Beetles feed on pollen, so they fly outside to mate and then return to the home to lay eggs.
  Carpet Beetles in the imago stage are mostly observed by homemakers dying in windows.

Carpet Beetle Larva

Carpet Beetle Larva

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Subject: strange location
Location: Toronto, Ontario
December 9, 2014 11:04 am
Hello!
I’m hoping you can help me identify these two critters. I live on the 28th floor of a condo building in Toronto. I seem to find these bugs all year round. The first I often find near my patio door (both dead and alive…this one was alive until I caught it for the photo op). It crunched when I squished it. Its about the size of a sesame seed.
The second one I found in the bottom of a laundry basket full of dirty laundry, though I feel like I’ve seen them elsewhere before. It was more wriggly and is about the size of a grain of rice.
I should also mention I’ve found little beetles in my cupboard, which I assumed were something like a grain beetle (though a couple were munching on some rogue chocolate the other day). I wasn’t as concerned about them since their location made sense.
Signature: Thanks! Meg

Carpet Beetle Larva

Carpet Beetle Larva

Dear Meg,
The “wriggly” larva is that of a Carpet Beetle, and since you have reported adult beetles as well, we are presuming that they are the same species.  The adult looks like it might be
Attagenus rufipennis based on this image on BugGuide.  Carpet Beetles are cosmopolitan household pests.  The larvae feed on a variety of organic items found in the home, including stored foods and organic fibers, even wool, fur and feathers.  Adults feed on pollen, so finding them near windows makes perfect sense, as does finding them dead.  Since they can’t get outside to feed, they die seeking the light. 

Carpet Beetle may be Attagenus rufipennis

Carpet Beetle may be Attagenus rufipennis

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