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

Subject:  Found on Arizona Cypress
Geographic location of the bug:  Boca Raton, FL
Date: 10/06/2018
Time: 05:00 PM EDT
Your letter to the bugman:  After seeing my Cypress being infected by something – it seemed like it occurred overnight – I checked it carefully and found this pine cone looking creature on my cypress, pulled it off and it MOVED in my hand! When I put it on the ground, a caterpillar-looking creature stuck it’s head out. I actually removed thousands which I think can be called a severe infestation.  (Is it a saw fly larvae.)
How can I stop further destruction to my tree? And avoid cross contamination to another cypress nearby.
How you want your letter signed:  Carol in Boca

Bagworms

Dear Carol in Boca,
You have Bagworms, the larvae of a moth in the family Psychidae.  According to BugGuide:  “
Larvae (bagworms) construct spindle-shaped bags covered with pieces of twigs, leaves, etc., and remain in them — enlarging the bags as they grow — until they pupate (also in the bag). Adult females remain in the bag, emitting pheromones which attract adult males to mate with them.  Eggs are laid inside the bag, and when they hatch the larvae crawl away to begin construction of their own individual cases.”  We do not provide extermination advice.

Thank you Daniel for the weekend answer.  They are marvelous creatures that disguise themselves EXTREMELY well. For my next mission: to make sure I see them and get rid of them well before they multiply.
Carol
What's That Bug? does not endorse extermination

Subject:  Bug that carries its home with it
Geographic location of the bug:  Larisa, Greece
Date: 04/04/2018
Time: 07:56 AM EDT
Your letter to the bugman:  I find this one bug occasionally in my garden and I believe its always the same one I see (I’ve never spotted two or more together). It doesn’t seem harmful but I’m scared to touch it and I don’t want to bother it. It always carries something on its back as you can see in the photo. Sometimes I find it immobile with it being entirely inside the thing on its back. It has six legs from what I can see. I’d really like to identify it.
How you want your letter signed:  EntomologistWannaBe

Bagworm

Dear EntomologistWannaBe,
This is a Bagworm, the caterpillar of a moth in the family Psychidae.  We located a beautiful poster on Etsy with images of the Hairy Sweep,
Canephora unicolor/Canephora hirsuta, which is described as “a moth of the family Psychidae. It is found in Europe. The female has no wings. The wingspan of the male is 20–25 mm. The moth flies in one generation from May to July. The larvae feed on shrubs, deciduous trees and herbaceous plants.”  There are also images on Papillon en Macro, Project Noah and BioLib.  Bagworms construct a bag from bits of plants that they drag around and use for protection, eventually pupating inside the bag. 

What's That Bug? does not endorse extermination

Subject: Unidentifiable Bug
Location: Gillespie County Texas
August 2, 2017 6:15 pm
We located this bug hanging on a vertical metal fence column in the Texas hill country west of Austin (Gillespie County). It’s mouth was very firmly attached. It does not appear to be a cocoon. The spines are dark brown and Woody in appearance. It is 3″ long and 1″ wide at its broadest point. Found in July.
Signature: M. Reynolds

Bagworm

Dear M. Reynolds,
This is a Bagworm, the caterpillar of a moth in the family Psychidae.  Bagworms construct protective covers from silk and bits of the plants upon which they are feeding and they eventually pupate inside the bag which becomes the cocoon.

What's That Bug? does not endorse extermination

Subject: Agonoscelis puberula? Larvae?
Location: Houston, Texas
July 30, 2017 9:37 am
Hello. Our potted thyme plant has hundreds of what at first look like brown dried flower heads moving in the breeze. But on closer inspection, they are alive! They appear to be shells or cocoons that each house a small larvae, which pokes its head out from one end, and which spins a sort of attachment fiber, like a spider. Could these be larvae for Agonoscelis puberula? I’ve not found any pictures on the Web yet of such shells.
Signature: John in Texas

Bagworms

Dear John,
These are not African Cluster Bugs which are pictured on BugGuide.  These are caterpillars from some species of Bagworm moth in the family Psychidae.

What's That Bug? does not endorse extermination

Subject: New Mexico Bagworms
Location: Albuquerque, NM
January 14, 2017 5:19 pm
Greetings,
These bagworm “cocoons” are now very common in the bosque (forest) along the Rio Grande in the area of Tingley Beach in Albuquerque, NM.
They are almost exclusively hanging from the salt cedar AKA Tamarisk on the flood plains adjacent to the river.
Can anyone identify a genus/species for these?
Thanks,
James Hunter
Albuquerque, NM
Signature: James Hunter

Bagworm

Dear James,
Our inability to provide you with a conclusive identification is no reflection on the excellent quality (and aesthetic merits) of your high resolution image.  In the pupal state, many Bagworms look very similar.  We thought that providing a food plant might help with identification, but in attempting to provide you with an identification, the most valuable information we learned on Texas Invasives is that Salt Cedar is an invasive exotic plant, which leads us to believe the Bagworm might not be a native species.

Daniel,
Thanks for your reply.
My very limited research has led me the genus Thyridopteryx; possibly a variation of the species ephemeraeformis.
A quick reference (http://entnemdept.ufl.edu/creatures/MISC/MOTHS/bagworm.htm) notes that for host plants:
Thyridopteryx ephemeraeformis can feed on over 50 families of deciduous and evergreen trees and shrubs. Common hosts include juniper (Juniperus spp.), arborvitae (Thuja spp.), live oak (Quercus virginiana), Southern red cedar (Juniperus silicicola), and willow (Salix spp.) (FDACS 1983). Other hosts include maple (Acer spp.), elm (Ulmus spp.), pine (Pinus spp.), Indian hawthorn (Raphiolepis indica), ligustrum (Ligustrum japonica), and viburnum (Viburnum spp.). One of the authors has received unconfirmed reports of common bagworm as an economic pest of Adonidia palms (Veitchia merrillii) in south Florida (S.P. Arthurs 2016).”
Willows are very common in the Rio Grande bosque, and/or these little guys may have adapted to feeding on Tamarisk.
The map on this page (http://www.butterfliesandmoths.org/species/Thyridopteryx-ephemeraeformis) and the detail (http://www.butterfliesandmoths.org/sighting_details/917285)  reports ephemeraeformis feeding on a willow in Albuquerque.  The closest other records are in eastern TX, OK and KS.  Perhaps an “invasion” is in progress.
Thanks again.
James C. Hunter, RG

Hi again James,
Thanks for providing all your research for our readership.  We just do not have the staffing to research every posting as thoroughly as you have done.  That is quite a diverse group of food plants for a single species.

What's That Bug? does not endorse extermination

Subject: Have no idea what this is?
Location: Walls and windows
December 4, 2016 5:16 am
I’ve seen these all over my house when I moved to Florida. I’m from Michigan and have never seen these? Please let me know what they are.
Signature: Y. Diaz

Bagworms

Bagworms

Dear Y. Diaz,
You have Bagworms, caterpillars from moths in the family Psychidae that construct a “bag” from silk and plant material from their host plants.  Bagworms live inside the bag and when it comes time for metamorphosis, they frequently leave the plant upon which they have been feeding and anchor the bag to a sheltered location where they pupate.  We suspect these stationary Bagworms are in the pupal state.

What's That Bug? does not endorse extermination