What type of bug cocoon is this?

What type of bug cocoon is this?

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My question is about these cocoon like things that are all over my house and fence in Florida (USA).

That is a bagworm. Order Lepidoptera, family Psychidae. You can read about them here

Identifying Egg Casings or Cocoons?

I submitted a segmented egg casing or cocoon for identification a few weeks ago. The general consensus was that it is a moth. Thanks to everyone who responded.

Now I have a couple of others -- not segmented this time. They almost look like a leaf was used to form the cocoon. The size is about 2 inches long and 1 inch wide. They were found on the ground in south central PA. Any thoughts?


This does not (to me) look insect related. This looks like a seed pod from a plant. We get these--I am in western PA. They look like the seed pods from our day lily plants.

We are bad from taking them out when they stop blooming and eventually they form things that look like your photo when they are done. I know they are bulb flowers so these are (if I am remembering my 6th grade science right) it would be a seed that is the pre-bulb.

Since was not my strong point, sorry. If you google images for day lily seeds, what I see in my yard looks like what this is, which looks a lot like this.

Penn State has a great home extension office. Maybe show it to them. A link to the site is: . / gss?query=extension%20office

Post back what you learn! They probably are not open during this crisis. not sure. but you could try!

In the anime

Main series

Major appearances

Jessie's Cascoon

Jessie's Wurmple evolved into a Cascoon in A Corphish out of Water, which also marked the species' debut. However, Jessie thought Cascoon was a Silcoon. As a result, James and Meowth were left worried about Jessie's rage when Cascoon evolved into Dustox. Fortunately, Jessie was ultimately not disappointed when Cascoon did indeed evolve into Dustox.


In Best Friend. Worst Nightmare!, Goh's three Wurmple all evolved into Cascoon. They reappeared in A Snow Day for Searching!. In Panic in the Park!, they all evolved into Dustox. The Wurmple reappeared in a flashback in Getting More Than You Battled For!.

Minor appearances

In Serving Up the Flute Cup!, Goh fantasized about a Silcoon while revealing the three Wurmple he caught could evolve into them.

In Trade, Borrow, and Steal!, a Cascoon was part of Kricketina Kylie's Bug-type Pokémon collection, as shown in her Rotom Phone.

Pokémon Omega Ruby and Alpha Sapphire Animated Trailer

In the Pokémon Omega Ruby and Pokémon Alpha Sapphire Animated Trailer, a Cascoon surrounded May and her Torchic, only for Torchic to scare it away with a Fire-type attack.

Finding Cocoons in Your Home

If you have certain types of insects in your home, there is a chance you may find cocoons. Flea cocoons are generally too small to be seen with the naked eye. However, clothes moths, which feed on a variety of household items like wool, yarn, upholstery and paper, may form visible cocoons.

As with any other pest problem, proper identification is crucial to controlling the issue. If you find cocoons in your home, contact the pest control professionals at Terminix®. They can properly identify the insects responsible and provide treatment options.

When are Mosquitoes Most Active?

Have you ever wondered why mosquitoes seem to be more active during certain times of the year or even certain times of day?

What Happens If You Kill the Fire Ant Queen?

Like the queen bee, the fire ant queen is the highest ranking member of an ant colony. Not only does she call the shots, but the future of the colony is also dependent upon her survival, as she's the sole member allowed to reproduce. All ants under her rule submit to her commands and work to meet her needs. Not a bad gig, right?

Why Is It So Hard to Kill a Cockroach?

It's a joke or comment heard often that cockroaches can survive the apocalypse. Though that isn't true, one thing is: Cockroaches are difficult to kill. Trying to squash a cockroach beneath a shoe or target it with a can of bug spray may not get the job done.

Have you ever seen tiny, lightly-colored insects crawling around your home or garden? If so, you may have been seeing psocids. These soft-bodied pests rarely grow larger than three-sixteenths of an inch long, making it difficult to spot a few of these pests outdoors. However, some of the psocid species are 1/10th this size (size ranges from 0.04 inch to 0.4 inch or 1/25” – 3/16”), just barely visible without magnification. With the smaller species there can be hundreds or even thousands of them, making the group of them more noticeable than an individual psocid would be.

How to Identify Types of Scale Insects

Scale insects are an interesting species. In fact, to the untrained eye, the first time scale insects are spotted they might not even appear to be insects because of their flat appearance, they can be mistaken for part of a plant or tree. Keep reading to learn more about scale insects’ distinguishing features and how to identify different types of scale insects.

4 Types of Insect Nests You Might See

There are millions of different species of insects and many variations in behavior and how these insects survive—including what they do for shelter and habitat. Other insects may live on and within things that already exist in nature like plants aphids, for example, live in colonies on plants without building any other kinds of structures. However, some other insects build nests specific to their needs. Keep reading to learn more about a few different types of insect nests.

How Are Scorpions and Spiders Similar?

As an experienced homeowner (or renter), you likely don’t have any trouble telling common types of household pests apart. Two of the most well-known household pests, scorpions and spiders, have striking physical appearances that often allow these pests to be identified within several seconds of observation. However, these two pests may have more in common than you think. The following are some of the major anatomical, reproductive, and behavioral similarities of scorpions and spiders.

Common Types of Cocoon Worms

There are many different worms that create cocoons. Cocoons protect insects form predators and the environment and provide shelter. They are often made of silk with the size of the cocoon dependent of the size of the insect that created it. Following is a brief list of common types of cocoon worms:

Silk Worms
Silk worms are often confused for worms, but they are not a member of the worm family at all. Instead, they are caterpillars that create a cocoon to complete the transformation process from caterpillar to butterfly. Silk worms create their cocoons after being alive for one month. It then takes three days for them to build a cocoon that they will live in for three weeks before emerging as a butterfly.

Earthworms create cocoons to protect their young offspring and embryos as they develop. The cocoon is created during the mating ritual and then buried in the ground until the offspring are ready to emerge.

Red Worms
Frequently used for composting, red worms create cocoons that are oval in shape and dark in color. These cocoons are created to protect eggs during the development stage of life. They are very strong and can last for several years protecting future generations from the elements. There have been many cases where red worm cocoons hatched young worms years after being created during the mating process.

Tomato Hornworms
Tomato Hornworms are closely relation to Tobacco Hornworms. They are not worms but do feed on tomato plants and other garden plants voraciously until they are ready to pupate and transform to the next stage of the life. Tomato Hornworms are fat, green worm like creatures that have excellent camouflage abilities they are very difficult to see during the day as they blend in with the garden environment with ease.

Tomato Hornworms are really moths and they are garden pests of the worst variety as they ruin plants and destroy crops. Sometimes, these worms are seen with white cocoons on their backs. These cocoons should not be destroyed as they are the cocoon of the Braconid Wasp, a predator of the Hornworm. These wasps will help eliminate the Hornworms from your garden, not create more.

There are many creatures such as butterflies and beetles that are mistaken for worms during their early life development. True worms that make cocoons do so during the mating process as the cocoon is to protect eggs during development. In general, if you see a worm like creature creating a cocoon then it is an insect of another name.

Cocoon-Building Insects

1. Fleas

Adult fleas, which pet owners may see on their dogs and cats, can lay up to 50 eggs a day. After hatching, these eggs produce worm-like larvae. Inside the home, these larvae may be found in carpet or other areas frequented by pets. The larvae form cocoons, and in 2-4 weeks will transform into adult fleas. These cocoons are nearly impossible to see.

2. Butterflies and Moths

Butterflies and moths are perhaps the most commonly known insects that build cocoons. Their larvae, which are caterpillars, are voracious eaters. Caterpillars spin silk, and this silk is used to form the cocoon for the pupal stage of development &ndash the final stage before adulthood. Some moths, such as the clothes moth, may find their way into homes. These moths feed on common household items, such as fibers in clothes and grains or other foods in the kitchen. If necessary, these moths may form cocoons and pupate in your house. A pest control professional can help identify the cocoon and the species of moth that created it.

3. Caddisflies

Some species of caddisflies build cocoons. These insects resemble moths, and they spend most of their lives in or near bodies of water like lakes, rivers and ponds. The larval stage of these insects lasts up to two years, during which they feed on algae or other small organisms found in the water in which they live. Larval caddisflies spin silk and use this material to make cocoons or casings around twigs and other particles in the water, like sand and gravel. Typically, caddisflies pupate from the winter through the early spring.

4. Parasitic Wasps

Some species of parasitic wasps attack hosts and use these host insects as nutrients for their young throughout development. The stage at which the wasp attacks varies with species, some attacking eggs, others choosing larvae or adults. Common host insects include aphids, caterpillars, sawflies, beetles and flies. After larval wasps have emerged from their eggs within their hosts, they spin silk to form cocoons either inside, around or nearby their hosts.

Can anyone identify these insect cocoons?

Took a few photos of some cocoons I see around the house, would appreciate help in identifying which species they are from, if possible:

(The house is in the lower Northern part of Thailand, about 230 km south of Bangkok.)

The first two are of the same type of cocoon, before and after the insect(s) (I presume) inside cracked it open. These cocoons varies in size, but usually 2-3 cm across, and they seem to be most common in or near shower areas, or other moist places.

The last picture is of a cocoon I see a lot of, all over the house, inside and outside. About 1 cm long. Often hangs from ceiling corner areas.

Would be nice to know what type of animals make these -- if they are butterflies, I'll just leave them, if they are for dengue fever mosquitos or something else unpleasant, I suppose I should make more of an effort to clean them out of the house. :-)

How to Identify Cocoons on Trees

Moth caterpillars spin cocoons, while most butterfly caterpillars form chrysalises, which can be similar in appearance. A cocoon is made of silk, which the caterpillar produces from glands. A chrysalis is made of protein, which comes from the caterpillar's skin.

Do not disturb the cocoon while making your observations.

Caterpillars which turn into moths make cocoons using a thick material they produce in two rear glands. The caterpillars of each moth species make a slightly different type of cocoon. Some cocoons are large, some are tightly woven, and some have multiple layers. Caterpillars add protection to their cocoons by shedding their larval hairs and weaving them into the cocoon's silk. This helps keep predators from eating the cocoon while the caterpillar is undergoing its transformation. The best time of year to find cocoons is early fall.

Find a book which depicts a variety of common moths and shows pictures of their caterpillars and cocoons. A book specific to where you live is helpful, since different species of moths occur in different parts of the United States.

  • Caterpillars which turn into moths make cocoons using a thick material they produce in two rear glands.
  • Caterpillars add protection to their cocoons by shedding their larval hairs and weaving them into the cocoon's silk.

Identify the tree the cocoon is hanging from. Chances are good that the caterpillar spun its cocoon from a branch of its main food source. Look over the tree to see if you can locate any caterpillars. Identifying the caterpillar is a little easier than identifying the cocoon, and more than likely, the same species is inhabiting the tree.

Read the descriptions given in the book for each caterpillar which eats that specific food. Some of these caterpillar species may make their cocoons underground, which means they would not be a match for the cocoon hanging from the tree.

Hold a ruler or tape measure next to the cocoon to measure its length and width, and check the measurements against those in the book.The cocoon's size should help narrow down possible candidates.

  • Identify the tree the cocoon is hanging from.
  • Identifying the caterpillar is a little easier than identifying the cocoon, and more than likely, the same species is inhabiting the tree.

Hold the pictures of the remaining candidates next to the cocoon you encountered. Pay attention to the way the cocoon is hanging from the tree and how tightly woven the thread is.


The cocoon is the protective covering around the pupae or chrysalis of some insects - especially moths. The cocoon is usually made from silk secreted and woven by the caterpillar/larvae before it pupates inside.

Silk is arguably the most well known product from insects. Silk comes from the cocoon of silk moths. The silk is unwound from the cocoons and then woven into threads.

A male silkworm moth (Bombyx mori) and two cocoons

Ever Seen This White Thingy Lurking On The Walls Of Your Home And Wondered "WTF Is This?"

Ever since I moved to Kuala Lumpur, I've always noticed this little white sack thingy hanging on the walls of my apartment and sometimes in crevices of the door frames.

It never bothered me until the day I saw one of them MOVE.

Upon closer inspection, I realised that it could sense my presence and hid back in its sack. After awhile, it then popped its head back out the other side.

I found out they are called plaster bagworms

A plaster bagworm is also known as the "household case bearer". They are the larvae of a species of moth called the Phereoeca allutella.

The moths are similar in appearance and closely related to clothes moths.

Here is what else you should know about them:

The plaster bagworms live in flattened, gray, watermelon seed-shaped cases measuring about 1.3cm long

According to this pest management site Larue, the case that they live in is constructed of silk fibre, sand particles, lint, paint fragments, and other debris.

The case has a slit-like opening at each end, and the larva is able stick its head out to move around and feed from either end.

They are found in places with warm, humid climates

According to the University of Florida, the plaster bagworm requires the high humidity to complete its development.

They have been recorded being seen in other highly humid places such as Hawaii, Panama, Sri Lanka, India, and Singapore.

They are not easy to spot sometimes.

Plaster bagworms are not dangerous. but they are damaging

They enjoy feeding on clothing, rugs, and any kind of fabric made of natural fibers, such as silk and wool.

They also feed on spiderwebs, pet dander, shed human hair, dead insects, and the discarded larval cases of members of its own species.

So, if you see one, you better get rid of it to avoid an infestation

As mentioned by this pest control guide by SFGate:

- Don't be afraid to hand-pick the larvae casings you discover on the walls. Dispose of them as you wish. I personally pick them up with a tissue and flush them down the toilet because I'm scared they will crawl back out of the rubbish bin.

- Spring clean! Thoroughly and regularly vacuum all the rooms and spaces you think accumulate their food sources which are spiderwebs, hair, and all that.

- Run an air conditioner or dehumidifier in the room to decrease humidity. Bagworms thrive only in high-humidity environments.

- Close cracks and crevices in the wall. You can do that with caulk or drywall compound to prevent both larvae or full-grown moths from entering.

- Remove natural fibre rugs and other fabrics from the room, if possible. As mentioned, bagworms are especially fond of wool.

In summary, regular housecleaning, humidity control, and getting rid of their food sources should keep the insects off your walls and out of your home!

Watch the video: 3πδ - Ελίνα (May 2022).