Currently viewing the category: "Pantry Beetles, Grain Weevils, Spider Beetles, Meal Worms and Carpet Beetles"
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Subject: Bed Bug
Location: England, suburban near London, my bedroom
January 30, 2013 6:29 pm
Hello, I’ve asked for a few bugs to be identified from here before :), you might remember because I have no high quality cameras, so i drew the bug in paint. I was just lying down to nap when I noticed this bug on the wall (a white wall but permanently in the shade) next to my bed, inches away from where my head would lie. Naturally, I have been freaking out however since I am also curious about bugs and love biology, I’d like to know what it is before I banish it, and hopefully its not been biting me in the night. (I’d also like to know if it does bite or cause allergies, if there are going to be more around!)
When I tried to catch it, using paper and a jar, it seemed to jump quite quickly straight underneath the paper that was supposed to be hugging the wall. I then thought the bug was dead as when I put it on the ground to inspect it I could manipulate it with a bit of paper and it would not react, for example I turned it over to draw the underside, however when drawing it the right-way round it started moving around very slowly, which suprised me, so I guess this bug ’plays dead’. Hopefully that information will help if the pictures don’t haha. It’s also very very tiny, like an eyelash folded over on itself. It seems hairy or at least tiny spikes, please let me know if you can identify it because, I don’t know if I can sleep now :P.
Signature: Nick

Carpet Beetle Larvae

Hi Nick,
Thanks to your thorough letter and excellent drawing, we believe you have Carpet Beetle Larvae.  They do not bite, but they might have a connection to allergies.  Carpet Beetle Larvae are common household pests that feed on natural fibers and debris such as pet hair.

What's That Bug? does not endorse extermination

Subject: Bug
Location: Pacific Northwest
January 21, 2013 8:16 pm
Hi. I found a few of these pests under my bed in a leather bound book and a couple on the box spring What are they?
Signature: Not a fan of bugs

Carpet Beetle Larvae

You have Carpet Beetle Larvae.

What's That Bug? does not endorse extermination

Subject: Home invasion in Austria
Location: Vienna, Austria
January 7, 2013 4:14 pm
Hi Bugman,
I came home from my winter vacation and found lots of those little black guys everywhere in my flat. They are about 3 to 4 millimeters long. Can you held me to identify their species?
Signature: Cheers, Hannes

Pantry Weevil is Caulophilus oryzae

Hi Hannes,
By your letter, it would seem to us that you have some species of beetle that infests stored foods and we would encourage you to carefully inspect the pantry for all stored grain products to see if you can determine the source of the infestation.  Don’t forget large bags of pet food including bird seed.  We do not recognize this particular species which appears to be a Weevil or Snout Beetle, but they are not the typical Grain or Rice Weevilswe encounter.  There are many small beetles that infest stored foods.  We will try to contact Eric Eaton to see if he can provide any additional information.

Pantry Weevils:  Caulophilus oryzae

On Jan 8, 2013, at 11:06 AM, Eric Eaton wrote:
Hi, Daniel:
Well, I don’t recognize them, either, so I’ll copy this to Charlie O’Brien, and see if he does.  Hopefully he is in good health….

Thanks much Eric,
Do you agree that they are weevils?

Yes, definitely weevils.  Great images should make ID by an authority fairly easy.

Here is the answer.  I thought I recognized it to subfamily, but that didn’t make any sense since most species bore in conifer bark.

Charlie O’Brien provides an identification
Hi Eric:
Happy to hear from you at any time.. The weevil is Caulophilus oryzae (Gyllenhal) formerly placed in Rhyncolus and it is a stored grain pest in the Cossoninae. It is almost Cosmopolitan..
… Sincerely,

Thanks a lot for identifying!
I sent you 5€ via paypal for your great service 🙂
kind regards,

What's That Bug? does not endorse extermination

Subject: help!! I’m concernrd this may be a bedbug!!!
Location: princeton bc
December 5, 2012 10:17 pm
I was at my friends house playing with their 5 month old baby when I noticed this bug crawling up his arm. I flicked it on to the carpet and immediately took a picture and squished it . My dad is suspecting a bedbug but could it be a carpet Beetle???? Please help!!
Signature: Jennifer

Carpet Beetle

Hi Jennifer,
If that rug is wool, it might be the reason your friend has Carpet Beetles, a common household pest.

What's That Bug? does not endorse extermination

Subject: Everywhere
Location: Ft. Worth Texas
November 28, 2012 8:00 pm
Have these all around my house…every room. Sometimes they’re alive and sometimes dead by the time I see them. Tried to take pics of front and back but they’re so tiny it may be difficult to see details. They’re always this size…have never seen any larger or smaller.
Signature: Stacy in Ft. worth

Carpet Beetle Larva

Hi Stacey,
This is a Carpet Beetle larva and it is a common household pest.  They feed on all types of organic matter around the home, including pet fur and the fibers of wool carpets and upholstery.  Try vacuuming more often as a means of control.

What's That Bug? does not endorse extermination

Subject: white spotted spider beetle
Location: Nova Scotia
November 26, 2012 12:29 pm
I do not see this bug species on your site. I have a problem with it. It recently appeared from a void in the BR, under the vanity. Quickly becoming a pest I have to deal with. Crawling bugs are controlable but flying is a problem. Has been identified; sharing photos; hope they come thru. I have seen egg, partially developed, crawling and flying. Is not in my kitchen or food. Does not bite, but the flying ones burn like a no-see-um if they light on me. I do not know how it got here, must have come on store products. Could almost miss the flyers for fruit flies. How prevalent are they in Canada?
Signature: Bugged

Whitemarked Spider Beetles

Dear Bugged,
Since we did not know this species, we looked it up on BugGuide and believe you are speaking of the Whitemarked Spider Beetle,
Ptinus fur.  BugGuide indicates it was:  “introduced to NA before 1870.”  BugGuide reports sightings in Ontario and the United States across the border.  Thank you for adding to our archive of Household Pests.

Whitemarked Spider Beetles

Is that really a photo of the egg?

Whitemarked Spider Beetle Egg, we suppose.

These photos surprised me when I enlarged them as it looks like a spec on the sticky paper of the monitor box I photographed. It is certainly some stage of development. I thought it had started to change color on one end?  Have not seen any nests or fuzzy pupae they describe in some writing and the “fur” is not evident without magnification, they are very small to start.  Am certain these are the developing ones.  In the further monitoring I checked yesterday there is a fully developed winged one, looks much like a common small housefly, plus there is the first I have seen that shows the spotted body really well (female?).  I will try and get a decent photo of that box.  I got the ID through Orkin pest control who contacted their lead entomologist at their Quality Control.
“It is white marked spider beetle. There are differences between females and males looks. The white patch may not always be the same.”
The worst of this specific one for control is that it flies.  I am not sure how it arrived, but I did buy a new sisal cat scratch post from a pet store in Oct.. and it sat on the floor on the opposite side of the bathroom wall, BR being where they emerged.  I have no carpets.  They are not in the kitchen, BdR or living room except a rare crawling one killed early on.  But they have moved into the basement and I see very few in the BR now.
I was surprised to find that of the ones caught on paper first (in the pictures I sent) and placed in a ziplock bag, some still had faint life a week later.  They are extremely hardy.

Update from Carol January 3, 3013
Hi Daniel:  Sorry to be so long getting this done.  In 1271 note there is an egg in the 4 o’clock position.  It is quite round and black when the picture is enlarged and in Picasa3 which I use I tried to correct the blur and it just went quite black so I left it untouched.  Enlargement is not as clear as it should be but it is the camera.
Would like to say these beetles seem to go on to become some version of a small fly from what I can tell.  There is no evidence they came on the cat post I mentioned.  I believe myself they either came on clothes from the line stored under the cabinet or under the siding and followed the double beam across the house.  I did see ants going there during our very hot dry August and got them but this could be from the same area.  No other explanation comes to mind.
I have had pest control once a few weeks ago.  They are gone now from upstairs, but not gone entirely from the basement and PC will come again to redo.  I am hopefully optimistic they will be eradicated but it is a real problem as they are so minute and even microscopic as some of this I could not see until photographed… more that I ever wanted to know about them!
Beetles Identification Guide
Ptinus fur (Linnaeus)
whitemarked spider beetle
ptine bigarré
Diagnosis: The species is distinguished from the other Ptinus included here in
having 2 tufts of setae on the pronotal disc, with the surface between the tufts
dull, punctured, and granulated.
Sexual dimorphism: Males (Fig. 224) have the elytra subparallel-sided, the eyes
larger and more convex, the antennae longer (10th segment about five times as
long as wide), the tufts of setae on the pronotal disc less defined, and the
metasternum longer and convex. Females (Fig. 225) have the elytra subobovate,
the eyes smaller and less convex, the antennae shorter (10th segment about
twice as long as wide), the tufts of setae on the pronotal disc more defined, and
the metasternum shorter and flat.
Distribution: Reported from Europe, North Africa, Asia, New Zealand, and
North America, where it was introduced before 1870. In Canada the species has
been collected in all provinces.
Economic importance: In Canada, this species is found mainly in warehouses
and dwellings, less frequently in museums, granaries, and grain elevators. It is
one of the most commonly reported ptinids in British Columbia.
Ptinus ocellus Brown (synonym: P. tectus auct.)
Australian spider beetle
ptine ocellé
Fig. 224 Ptinus fur (Linnaeus); male. Scale = 0.5 mm.
Fig. 225 Ptinus fur (Linnaeus); female. Scale = 0.5 mm.


What's That Bug? does not endorse extermination