Currently viewing the category: "Booklice and Barklice"
What's That Bug? does not endorse extermination

Subject:  Plague?
Geographic location of the bug:  Tamaulipas, MEXICO
Date: 11/04/2017
Time: 01:14 PM EDT
Hello, i called 3 diferent exterminators and any of them know what kind of bug are these, help me plase. They are in the walls and the roof of my house but they are infested parts of mdf wood in the furniture. The structure of my house isnt of wood is all cement block, concret and stoff nothing of wood and insulating filler.  The weather is tropical and hot with a lot of humidity.  I hope you response as soon as posible good bless you…
How you want your letter signed:  My english its poor sorry about that i dont use an online traductor. Thx…. Agustin

Booklice

Dear Agustin,
These are Booklice, and according to BugGuide, they are found:  “under bark, in ant nests, in homes” and “worldwide and across NA; many spp. are now nearly cosmopolitan or otherwise widely spread through agency of man, mostly with stored products.”  According to Charles Hogue in Insects of the Los Angeles Basin:  “Although it is a contributor to the allergens found in house dust and its feeding may do minor damage to book bindings and paper, the presence of the Book Louse is usually no more than an annoyance.”  According to DenGarden:  “Booklice are itsy, bitsy little bugs – about 1/16 ” long and they are not actually lice at all, so although they are harmless, they are still bugs. If you’ve got any dried out, or decaying plants, you might find these little critters enjoying a plant buffet, or they may even be lurking around your stored food. The head and abdomen appear large, and the midsection is more narrow. Huge, compound eyes protrude from the sides of the head. They also have thread-like antennae that sweep backward toward the abdomen. Not all booklice have wings, but some do (usually the booklice that stay outside), and when they do, there are four of them – two smaller front wings and two larger back wings. Most of the ones you will be hunting down should be wingless booklice.  Booklice really love paper, so you might find them on bookbindings, photographs, or even your wallpaper. You can look for them to thrive in a dark basement or storeroom, if you have one, and if you have a second home that you close up for part of the year, they have probably set up residence there as well. If you live in an older, loosely-constructed home, there are probably a lot more booklice living there than people. You may need to invest in a good magnifying glass to see them, but they are there.”

What's That Bug? does not endorse extermination

Subject:  Bug on Lumber
Geographic location of the bug:  Minnesota
Date: 10/05/2017
Time: 01:10 PM EDT
Found hundreds of small bugs on a woodworking project in the garage.  I used a air compressor to blow off as many as possible but there are still some that are on my project.  Any idea what these are and if they are destructive?  Any advise on removing them?  The best guess I have is that they are booklice.
How you want your letter signed:  Chris

Booklouse

Dear Chris,
This is a Booklouse and the presence of it and its hundreds of friends on your woodworking project is more an annoyance than a problem.  According to BugGuide:  “many spp. are now nearly cosmopolitan or otherwise widely spread through agency of man, mostly with stored products.”

What's That Bug? does not endorse extermination

Subject:  What’s this bug/insect?
Geographic location of the bug:  New Jersey Pine Barrens
Date: 10/01/2017
Time: 11:07 AM EDT
A friend of mine in NJ found these on her shed in the Pine Barrens.  It’s a wooded, swampy, sandy area that is densely populated with many trees including oaks and pines of all sorts
How you want your letter signed:  Curios creature that

Barklice

Dear Curios,
We often receive identification requests for Barklice that are found in large numbers on trees in lawns.  Though they appear as though they are harmful to the trees, Barklice actually feed on lichens and they do no harm to the trees.  Barklice are commonly called Tree Cattle.

What's That Bug? does not endorse extermination

Subject: please help me, I’ve looked everywhere. ..
Location: South Central Pa
July 14, 2017 6:29 pm
I found these on a Crabapple tree…. my 8 year old son and I have been poring over pictures to find out what they are… we are in south central Pa, and it’s in July. ..
Signature: Renee and J

Barklice

Dear Renee and J,
Home gardeners are often quite alarmed when they find large colonies of winged adult and wingless immature Barklice on their trees.  Barklice are commonly called Tree Cattle.  There is no cause for concern.  Barklice will not harm the trees.  According to BugGuide, they eat:  “accumulations of fungi, algae, lichen, dead bark and other materials that occur on tree trunks and large limbs.”

What's That Bug? does not endorse extermination

Subject: household bug, a few living in my computer… nothing to worry about?
Location: Oakland, California
March 30, 2017 5:37 pm
Hello, bugman! Thank you from the bottom of my heart … and floorboards? … for all that you’re doing to ID bugs. These little mites might be harmless, as I haven’t seen a single bite yet, but there are many dozens of them every month crawling along the wooden floorboards of my apartment in Oakland, California. A few appear on my computer from time to time. What do you think? Harmless?
Signature: David

Booklouse

Dear David,
Though they are quite small, this is not a Mite.  It is a Booklouse, an innocuous creature that could become a nuisance if they get plentiful.  According to the North Carolina State University Department of Entomology:  “The presence of booklice can be quite an annoyance; however, they rarely cause significant damage to items. Most often, the damp conditions and developing mold or fungi have already caused the damage.” 

What's That Bug? does not endorse extermination

Subject: Need identification
Location: 44.703093,-63.610989
January 5, 2017 10:59 pm
Being having crawling sensations on me for the last two years.
Sorry for the bad pictures i had to put transparent tape over it.
I got this when i stop at Burnside motel in Dartmouth NS.
Signature: Celine

Booklouse

Dear Celine,
This is a Booklouse in the family Liposcelididae, and according to BugGuide they are found:  “
worldwide and across NA; many spp. are now nearly cosmopolitan or otherwise widely spread through agency of man, mostly with stored products” and their habitat is “under bark, in ant nests, in homes.”  According to Penn State Department of Entomology:  “Booklice, also called psocids, are not true lice. While they resemble lice in size and shape, booklice feed only on fungi or mold. If you find them in grain or other stored food products, it is an indication of high humidity which encourages mold growth. In addition to food products, psocids may be found under wallpaper, in furniture, along the sides of windows or on window sills around potted plants. Booklice do not bite, transmit disease, or damage food or fabric, but they can be very annoying when present in large numbers.”  The site also states:  “Booklice feed on molds and will overrun cereals and similar materials that support mold growth. Their presence, therefore, is a nuisance and can render some foods unfit. The starchy paste of wallpaper and books also can support mold growth or may be attacked directly by booklice. Outside of annoyance, their damage is insignificant.”

Booklouse

What's That Bug? does not endorse extermination