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What is a Hairy Molly caterpillar?

Author

Mia Kelly

Published Jan 21, 2026

My friend also mentioned that he had seen lots of “hairy mollies”. This refers to the hairy caterpillars of mainly moths that appear at the end of summer. The unusual name comes from the Irish word “mala” for eyelashes. The caterpillars do bear a resemblance to a walking eyelash.

What does a Hairymolly turn into?

Conversation. A very large hairy molly in the rain - the name is said to derive from mala, the Irish for eyebrow. This fuzzy caterpillar will turn into a Fox Moth.

How do I identify a hairy caterpillar?

It should be fairly easy to distinguish from other hairy caterpillars thanks to its bright orange, black and white stripes which run lengthwise along its back. The hairs protrude from the sides of its blue body beneath a yellow stripe.

Is a Hairy Molly a caterpillar Ireland?

These moth larvae come out on warm autumn and winter days to sun themselves and feed on brambles and other plants. They are one of several caterpillars known as “hairy mollies” in Ireland, a group that has lots of folklore attached to it: “When the hairy molly crosses the road, rain is near” was a Tipperary saying.

What caterpillars are poisonous in UK?

A poisonous moth caterpillar is on the increase in some parts of the UK, having been found in South London and Berkshire. The oak processionary caterpillars can cause allergic reactions because each insect is covered with thousands of toxic hairs, which can cause irritation to eyes and throats and skin rashes.

39 related questions found

Are hairy caterpillars poisonous?

Caterpillars covered with hair or bristles, with one exception, are rarely poisonous. The “fuzzy-wuzzy” caterpillar that predicts winter cold is not poisonous nor is the gypsy moth or your tent caterpillar.

Are brown hairy caterpillars poisonous?

The tiny caterpillars, known as browntail moths (Euproctis chrysorrhoea), have brown bodies with white streaks, orange dots and thin poisonous hairs that can cause poison-ivy-like rashes and breathing problems in some people, according to the Maine Department of Agriculture, Conservation & Forestry.

What is a yellow hairy caterpillar?

Dagger moth caterpillars are fuzzy with medium length yellow, yellowgreen, or even white setae. They also have four, elegant, slender, black "pencils" of setae that extend out from the first and third abdominal segments. A fifth pencil of black bristles extends near the rear of the caterpillar.

Can you touch a hairy caterpillar?

Talk to your children and make sure they know that just because a caterpillar may look cute, furry, or fuzzy, they should not be picked up or touched. It's okay to be curious and observe these eyespots creatures, but a good rule to remember is do not touch or pick up any caterpillars, especially fuzzy or hairy ones.

What happens if you touch a hairy caterpillar?

The spike-like hairs in a few dozen caterpillar species are actually quills connected to poisonous sacs. Touch these hairs and they may break off in your skin, releasing a tiny dose of toxin in the process.

What kind of butterfly does a hairy caterpillar turn into?

What Does A Woolly Bear Caterpillar Become? Woolly bear caterpillars turn into the Isabella tiger moth (Pyrrharctia Isabella). You can recognize these moths by their yellowy-orange coloration, black legs, and small black spots on wings and thorax. The Isabella tiger moth (Pyrrharctia Isabella) emerges in the spring.

What do yellow hairy caterpillars turn into?

After the yellow furry larvae go through metamorphosis, they turn into the Virginia tiger moth. This is a beautiful species of white moth with a wingspan of between 1.1” and 2” (3 – 5 cm). You can identify yellow woolly bear caterpillars by their hairy appearance and longer pencil hairs.

Do hairy caterpillars turn into butterflies?

As caterpillars grow, they molt and shed their skin four to six times before transforming into pupae. The pupa is the final stage of development, during which metamorphosis takes place over a period of about two weeks, at the end of which an adult butterfly or moth emerges.

What caterpillars should you not touch?

Avoid touching the delightfully fuzzy hickory tussock moth caterpillar, Lophocampa caryae, at all costs.

Where do hairy caterpillars come from?

The “hairy caterpillar” is a larvae form of what ultimately becomes a moth (commonly known as the White Cedar Moth). They congregate in large masses, and are foliage eaters. As they feed on their host tree, they tend to blend with the colour of the tree, throughout their various development stages.

What are the hairy caterpillars called?

Banded Woolly Bear (Pyrrharctia isabella)

Also known as the woolly worm or the Isabella tiger moth, this little guy is one of the most common furry caterpillars and the easiest to find. They have 13 segments and are rusty orange in the middle and black on the ends.

How do you get rid of hairy worms?

Spray affected areas with insecticides containing bacillus thuringiensis. Bacillus thuringiensis affects the intestines of pest species, such as hairy caterpillars. The caterpillars ingest leaves sprayed with the substance and die within a few days. Remove caterpillars as they die and discard them in your trash.

How do you tell if a caterpillar is a moth or butterfly?

A fuzzy or hairy caterpillar ambling through your garden is a moth-to-be. Butterfly caterpillars aren't fuzzy or hairy, but they may have spikes. However, if the caterpillar has smooth skin, it could be either.

Are fuzzy caterpillars poisonous to dogs?

Caterpillars are fun to watch and touch, but the ASPCA Animal Poison Control Center warns that they can be poisonous to pets.

Are black hairy caterpillars poisonous?

Are black caterpillars poisonous? The majority of black caterpillars are not venomous and are harmless to humans. Some types of furry black caterpillars may have stinging barbs or spines that can cause skin irritations or dermatitis. Only furry moth caterpillars may sting whereas butterfly caterpillars don't sting.

What is difference moth and butterfly?

Butterflies normally fold their wings vertically over their backs while most moths hold their wings horizontally when at rest (although quite a few Geometrids, such as the Thorns, hold them vertically or at an angle).

What does it mean when you see a black and brown caterpillar?

Woolly worms have bands of black and brown across their fuzzy coats. According to weather folklore, the more black on a woolly worm in the fall means a longer, colder, and possibly snowier winter, to come. If there is more brown, especially in the middle of the worm, that's a sign of a mild winter.

What does a monarch butterfly caterpillar look like?

First instar caterpillars are very small and may be pale green or grayish white, appearing almost translucent. Subsequent instars are distinctly striped in yellow, white, and black, with a pair of black tentacles on both ends of their bodies.

What do I do if I find a monarch caterpillar?

Once you find a caterpillar or egg, cut off the entire leaf or branch that the egg or caterpillar is on, and put it in a glass of water to keep the cutting fresh. Put the eggs or caterpillars in the ventilated container of your choice after lining with newspaper or a rubber mat (for easy clean-up).

Is it OK to touch monarch caterpillars?

It is safe for humans to hold and touch the Monarch caterpillar but it is not always safe for the caterpillar. When they are young/small they are quite delicate but as they grow it becomes safer for them to be handled. The one time that no caterpillar should be handled is when they are preparing to molt.