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

Subject:  caterpillar
Geographic location of the bug:  China Grove, TX 78263
Date: 03/30/2020
Time: 05:29 PM EDT
Your letter to the bugman:  I have never seen this type caterpillar before.  I cannot find any pictures like it online. It was about 3-4 four inches long. Can you identify it and the butterfly or math it morphs into?  Thank You!
How you want your letter signed:  Mako Ivory

Calleta Silkmoth Caterpillar

Dear Mako,
This is a Giant Silkmoth Caterpillar from the family Saturniidae, and we quickly identified it as a Calleta Silkmoth Caterpillar,
Eupackardia calleta, thanks to images on BugGuide.  Here is an image of the adult Calleta Silkmoth from our archives.

What's That Bug? does not endorse extermination

Subject:  Bright happy worm
Geographic location of the bug:  Livermore, KY
Date: 02/20/2020
Time: 06:37 PM EDT
Your letter to the bugman:  This pretty little worm was found on a tractor in the river bottoms of Livermore,KY. It was late summer, around the end of August when it was found. I have never seen a worm like this before and no one I’ve asked can identify it either. I’d love to know what this little guy’s species is!
How you want your letter signed:  Curious worm lady

Stinging Rose Caterpiller

Dear Curious worm lady,
Your “bright happy worm” is a perfect example of the concept of “look but don’t touch” because it is a Stinging Slug Caterpillar in the family Limacodidae.  We identified it as a Stinging Rose Caterpiller,
Parasa indetermina, thanks to this image on BugGuide.

What's That Bug? does not endorse extermination

Subject:  What kind of caterpillar?
Geographic location of the bug:  Tucson, AZ
Date: 02/12/2020
Time: 08:21 PM EDT
Your letter to the bugman:  I found this giant caterpillar near my garage in October.  I’ve never seen one so big. What is it?
How you want your letter signed:  Erica

Pre-pupal Rustic Sphinx Caterpillar

Dear Erica,
We believe your Hornworm is a pre-pupal Rustic Sphinx Caterpillar,
Manduca rustica, based on images on the Sphingidae of the Americas and BugGuide.

What's That Bug? does not endorse extermination

Subject:  Caterpillar
Geographic location of the bug:  Dallas Texas Area
Date: 01/06/2020
Time: 01:51 PM EDT
Your letter to the bugman:  I found this guy on one of my Vitex bushes this Fall.  He is 3″ long. What is he going to be?
How you want your letter signed:  Clueless in Dallas

Hornworm: probably Manduca florestan

Dear Clueless in Dallas,
This is a Hornworm, the caterpillar of a moth in the family Sphingidae.  Thanks for providing the food plant.  When we searched for Sphingidae caterpillars that feed on Vitex, we found this posting for
Manduca florestan on Wikipedia, and we then checked on Sphingidae of the Americas where we found images that appear to match your individual.  Manduca florestan is listed as a stray in Texas.  We will contact Bill Oehlke to verify our identification.

What's That Bug? does not endorse extermination

Subject:  What is it??
Geographic location of the bug:  Shark Valley, Everglades National Park
Date: 12/13/2019
Time: 01:56 PM EDT
Your letter to the bugman:  Hello!
Never seen anything quite like this. It was on a cocoplum leaf.
How you want your letter signed:  Mike

Unknown Stinging Slug Caterpillar

Dear Mike,
This is definitely a Stinging Slug Caterpillar in the family Limacodidae, but we are uncertain of the species.  The red color is quite unusual.  We believe it might be a Crowned Slug Caterpillar,
Isa textula, which is pictured on BugGuide, but we cannot locate any images of red individuals.  Sometimes caterpillars change colors right before metamorphosis.

What's That Bug? does not endorse extermination

Subject:  Unidentifiable CaterpillarS
Geographic location of the bug:  Roseville, CA
Date: 11/12/2019
Time: 06:41 PM EDT
Your letter to the bugman:  Can you tell me what this is?  They denuded my redbud tree. How can I prevent them from returning. Organic pesticides had no effect whatsoever. Thank you.
How you want your letter signed:  Sharon

Red-Humped Caterpillar

Dear Sharon,
This is a Red-Humped Caterpillar,
Schizura concinna, which you can find pictured on BugGuide.  According to the University of California Integrated Pest Management site:  “Young caterpillars commonly feed side-by-side in groups, chewing on the lower leaf surface. As the larvae grow, they tend to disperse and feed in smaller groups or individually. Skeletonized leaves are a common result, as the older caterpillars chew all the way through and consume leaves, leaving only the larger, tough veins. … When their abundance is low, larvae eat leaves on only a few branch terminals. Occasionally, heavy infestations develop and defoliate entire trees during the summer. Usually only scattered individual and young trees are severely defoliated. If severely defoliated, trees that are otherwise healthy usually recover.”

Dear Daniel,
Thank you for the quick response and valuable information about the Red-Humped Caterpillars.  They are scary-looking. I hope my redbud tree will recover. Thanks again!

What's That Bug? does not endorse extermination