Currently viewing the category: "Silkworms"

Thought I’d share…
I stumbled across your website while doing some research on sand wasps and I figured you should have one of my pictures! It’s a Hickory Horned Devil caterpillar. I found it last year at the day camp I work at and thought it was the coolest ever! Hope you all can use it.
Simon Mahan

Hi Simon,
We usually get our Hickory Horned Devil photos in September. We just got an image of the adult Royal Walnut Moth this week. Your photo will be a nice prelude to this year’s images. Thank you.

My Bug
Hello – I do know my bug is a caterpillar of some sort but what I want to know is what is happening to this creature. I live in south east Arizona and the caterpillar is common here but I have never seen one with the white “larvae” attached to it. It is alive and was perched on a mesquite tree branch when we found it. Do you have any ideas? Thanks you…

Hi Jeannie
Your Juno Buckmoth Caterpillar, Hemileuca juno, which we matched on BugGuide, has been parasitized by a tiny Braconid Wasp that laid her eggs in the caterpillar. The young wasps fed on the caterpillar and then pupated outside. Sadly, the caterpillar will die.

What kinds of caterpillars are these?
We found the caterpillar in the first picture in Belfountain, Ontario, and the caterpillar in the second one at Go Home Lake near Georgian Bay, Ontario. We’ve never seen them before! Also, can you direct us to pictures of what they will look like when they turn into moths? Any help to ID them would be appreciated. Thanks!
Janice, Paul, Riley and Gillian

Hi Janice, Pauk, Riley and Gillian,
Your Belfountaine caterpillar is a Laurel Sphinx, Sphinx kalmiae, which is easily distinguished from other Sphinx or Hawkmoth caterpillars known as Hornworms because of its black and blue mottled horn. It feeds on laurels, ashes, lilacs, privets; also reported from poplars. Here is an image of the mounted adult moth and here is a photo of a living specimen.

Your second caterpillar from Go Home Lake is a Giant Silkworm known as a Cecropia Moth, Samia cecropia or Hyalophora cecropia. This is a large beautiful moth. Here is a wonderful site that covers the entire metamorphosis of the Cecropia Moth.

Unidentified Caterpillar
I need help identifying this really neat caterpillar I found here in SW Michigan. It is about 2 1/2 inches long and seems somewhat similair to some larvea of the Antheraea family. I would like to try and raise it and was wondering if it needs to eat now and if so, what should I feed it?

Sorry Joanna,
The best we can do is agree it is one of the Giant Silkworm Moth caterpillars, Saturniidae. It somewhat resembles a cecropia moth and it somewhat resembles a cynthia moth, but it doesn’t look exactly like either. We will keep trying to positively identify it.

Is this a picture of a Tomato bug? (The one on the right) We found it in the yard and have not checked if anymore exist in the garden.
Thanks Tina

Your tomatoes are safe Tina,
You have a photo of a Polyphemus Moth caterpillar. Caterpillars eat the leaves of many different trees, including chestnut, elm, hickory, maple, poplar, sycamore, alder, basswood, and beech. Adults, named for the Cyclops because of their eyespots, do not eat.

Name that Bug
Hi! I found your site while web searching for the identity of this little critter. He’s easily 5 inches long and we found him in the back yard in eastern PA near NewHope getting ready for a family picnic. I’ll send you a second picture of the full bug.

We have been waiting for the photos of the Hickory Horned Devils, caterpillars of the Royal Walnut Moth, Citheronia regalis, to arrive. This is America’s largest caterpillar, and although fierce looking, it is harmless. It feeds on the leaves of trees like Walnut, Hickory and Persimmon. In the fall, the caterpillar leaves the tops of the trees and climbs to the ground where it will dig and pupate, emerging as an adult moth in the spring. We hope you are releasing your captive.