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

Subject:  Strange furry purple caterpillar
Geographic location of the bug:  Florida panhandle
Date: 10/23/2018
Time: 05:53 PM EDT
Your letter to the bugman:  Hey bug man this little guy fell out of a tree in my windshield on my way home today  I’m semi new to Florida and know there are lots of crazy bugs here. Never seen one of these tho. It is about an inch long dark purple with some reddish orange on the underbelly. Did a reverse image search to try to find the species. No luck. Made it all the way home and took him off the car and realeased him in the grass. Thanks for any help!
How you want your letter signed:  Jordon

Monkey Slug

Dear Jordon,
You should be commended on even recognizing that the Monkey Slug is a caterpillar.  Handle with caution.  Monkey Slugs can sting.

What's That Bug? does not endorse extermination

Subject:  what in the world?
Geographic location of the bug:  Blue Ridge Mtns, NC
Date: 09/23/2018
Time: 08:50 AM EDT
Your letter to the bugman:  found hanging in a tree.  stung head when walked under it.  felt like bee sting.
dont know if its a bug or a flower.
How you want your letter signed:  Bug or Flower?

Saddleback Caterpillar

You were stung by a Saddleback Caterpillar, Acharia stimulea.  According to BugGuide:  “Caterpillars are capable of inflicting lasting and painful stings with their spines.”

What's That Bug? does not endorse extermination

Subject:  Strangest bug I’ve ever seen
Geographic location of the bug:  Northeast Pennsylvania
Date: 08/22/2018
Time: 04:44 PM EDT
Your letter to the bugman:  Found this crawling on my window. It moves like a slug. When you watch it the whole body ripples to make it move.
How you want your letter signed:  Megan

Monkey Slug

Dear Megan,
This unusual caterpillar is commonly called a Monkey Slug.  Handle with caution as they are capable of stinging.  According to BugGuide:  “Caterpillar is most frequently seen. Bizarre, brown, hairy creature that resembles some sort of aquatic creature more than a caterpillar. Three pairs of long arms and three pairs of short arms, which are ‘deciduous’ – often one or more is missing.”

What's That Bug? does not endorse extermination

Subject:  Strange little bug
Geographic location of the bug:  Southern West Virginia
Date: 08/20/2018
Time: 11:37 AM EDT
Your letter to the bugman:  Hey, found this little guy on a tree. Never seen one before and can’t seem to find it on the internet.
How you want your letter signed:  Liz

Skiff Moth Caterpillar

Dear Liz,
This is a Skiff Moth Caterpillar,
Prolimacodes badia, and it is pictured on BugGuide where it states:  “Larvae feed on leaves of wide variety of trees and shrubs, including birch, blueberry, cherry, chestnut, Hophornbeam (Ostrya virginiana), oak, poplar, Sweetgale (Myrica gale), willow, and others.”

What's That Bug? does not endorse extermination

Subject:  Colourful from Australia
Geographic location of the bug:  Sydney
Date: 05/07/2018
Time: 05:31 PM EDT
Your letter to the bugman:  Hi Bugman, a friend of us found this in Sydney and we have no clue what it is. It’s very beautiful.
How you want your letter signed:  Nexus6

Macadamia Cup Moth Caterpillar:  Mecytha fasciata

Hi,
We’ve solved the mystery :  There is a parent at our school who is an entomologist. It is the caterpillar of the Macadamia Cup Moth ( Mecytha fasciata ). It will turn into a little brown and white furry moth.
Kind regards
Thomas

Dear Thomas,
Thanks for getting back to us.  Of course, though you have provided an identification, we are still posting your image and query because we could not pass up a subject line:  “Colourful from Australia.”  In North America, this family is commonly called the Stinging Slug Caterpillars because many species have venomous spines.
  The Macadamia Cup Moth Caterpillar is also pictured on Australian Nature and Dave’s Garden.  According to Butterfly House “This Caterpillar is green with a yellow stripe down its back. Unusually for this family, it has no tubercles, but is smoothly rounded.”  That is an indication this species does not sting.

What's That Bug? does not endorse extermination

Subject:  octopus looking bug
Geographic location of the bug:  Arenal, Costa Rica
Date: 03/28/2018
Time: 07:02 PM EDT
Your letter to the bugman:  I found the weirdest insect in Costa Rica Arenal at a Hotel Lomas Del Volcan
it was near the pool on a palm leaf. When we first saw it we thought it was dead leaf on the palm  tree. I shook the palm leaf and it fell to the ground that is when I saw it was a living thing.  One of the appendages came off. I think this might be a defense I am not sure.  I picked it up and we got one pic of the underside looked like some type of slug.  I then turned it back upright and put it back on the palm leaf. It looked like it puffed up and was going to metamorph into something else. In the morning I checked on it and it had moved again from the underside of the leaf to the top of the palm leave. so it looked like it formed a protection and then moved when it was ready. Very strange looking forward to knowing if you have ever seen anything like this before.
How you want your letter signed:  Terri Martin

Monkey Slug

Dear Terri,
This is the caterpillar of a moth in the genus
Phobetron, and in North America, the species Phobetron pithecium, the Hag Moth has a similar looking caterpillar commonly called a Monkey Slug, but caution should be exercised when handling the unusual caterpillar as it is capable of stinging.  Researchgate has a scholarly article entitled Twenty-Five new species of Costa Rican Limacodidae that lists six newly discovered species in the Phobetron complex including Phobetron guzmanae and Alex Hyde PHotography has an image of an adult Phobetron hipparchia from Costa Rica.  If Alamy is correct, the Monkey Slug ranges as far south as Costa Rica, but we would not rule out that your caterpillar might be a member of a different species in the genus or possibly the genus complex mentioned earlier. 

What's That Bug? does not endorse extermination