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

Subject: Giant blue caterpillar!
Location: Pemba, Mozambique
July 13, 2017 12:38 pm
My sister found this giant caterpillar and I’ve since been curious as I can’t identify which species it belongs to.
Signature: Honestly, I don’t know what this field means

Christmas Caterpillar

This is a Christmas Caterpillar or Pine Emperor Moth Caterpillar, Nudaurelia cytherea.  According to Featured Creature:  “The caterpillar of the Pine Emperor Moth (Nudaurelia cytherea) isn’t exactly dressed for a glamorous ball but instead an ugly Christmas sweater party! It’s definitely looking festive with that big, fat, red santa-inspired body dotted with lime green, lemon, and light blue spots. I think the course gray hairs really add an extra touch of ‘ugly’ to the ugly Christmas sweater caterpillar feel, don’t you?”

What's That Bug? does not endorse extermination

Subject: Giant blue spiked Caterpillar
Location: Central Portugal
July 9, 2017 4:59 am
I found this big guy in front of my house,
The Caterpillar is about 10cm long, and has tiny hairs on top of blue bumps that are on his green/brown body.
I found him on a hot day at the beginning of summer, it were about 38°C outside, so I carefully took him to a shadow and took these pictures.
I live in central Portugal.
Signature: Karl

Prepupal Great Peacock Moth Caterpillar

Dear Karl,
Many caterpillars change color just before pupation, and this prepupal Great Peacock Moth,
Saturnia pyri, is no exception.  It began life as a green caterpillar and now that it is ready to spin a cocoon and pupate, it has changed to an orange color.  Here is an Alamy image that depicts a prepupal Great Peacock Moth caterpillar.  Alamy also has a nice image depicting the entire life cycle of the Great Peacock Moth.  The green coloration is depicted on UK Moths where it states:  “Europe’s largest moth, although not British, has been found on one occasion, in Hampshire in 1984. However, being such a spectacular species, it is a favourite amongst livestock breeders, and is unlikely to occur here in the wild.  Abroad, the distribution ranges from southern Europe through Africa and the Middle East.  The adults fly from April to June and are easily attracted to light.   The impressive caterpillars feed on the foliage of a range of foodplants, primarily fruit trees.”  Saturniidae of the Western Palaearctic has a nice comprehensive description of the Great Peacock Moth that includes this fascinating bit of information:  “Larger larvae are capable of ‘chirping’. These ‘chirps’ are broadband, with dominant peaks ranging between the sonic (3.7 kHz) and ultrasonic (55.1 kHz) and are generated by a rapid succession of mandibular ‘tooth strikes’. Chirp trains are induced by simulated predator attacks and precede or accompany the secretion of a defensive chemical from integumental bristles, supporting the hypothesis that these sounds function in acoustic aposematism. It has been proposed that these caterpillars generate multimodal warning signals (visual, chemical, and acoustic) to target the dominant sensory modalities of different predators, including birds, bats, and invertebrates (Bura, Fleming & Yack, 2009).”  Finally,  this Portuguese blog Natureza em Directo Borboletas has some nice images of the adult Great Peacock Moth.

Prepupal Great Peacock Moth Caterpillar

What's That Bug? does not endorse extermination

Subject: Cecropia Caterpillar
Location: Middlebury, VT
May 3, 2017 2:19 pm
My grandson found this on our maple tree a few years ago and I thought you’d like to have the picture.
Signature: BrendaB

Cecropia Moth Caterpillar

Dear BrendaB,
We thought this was very early for a Cecropia Caterpillar sighting, especially in Vermont, and then we noticed your digital file is dated 2012.  We would expect to see Cecropia Moth Caterpillar late in the summer.

Oh yes!  I did say it was a few years ago.  I just think the picture is great, so I wanted to share.

And we agree that it is an awesome image, which is why we posted it.
We did not mean to seem dismissive.  We just wanted to inform our readers when to expect to see Cecropia Moth Caterpillars.

Thank you!  I am happy to know when to look for them as I haven’t seen one since 2012.  They seriously look like a Fisher Price toy.  Put a string on the front of it and it could be a pull toy.  J


What's That Bug? does not endorse extermination

Subject: Caterpillar
Location: Uganda
April 6, 2017 1:19 am
What kind of caterpillar is this. What will it turn into.
Signature: Mr

Cabbage Tree Emperor Moth Caterpillar

Dear Mr from Uganda,
This is either an Emperor Moth Caterpillar,
Bunaea alcinoe, or a closely related species in the same genus.  Commonly called the Cabbage Tree Emperor Moth Caterpillar, this species is edible.  We believe your individual has finished eating and it is searching for the ideal place to pupate.  The adult Cabbage Tree Emperor Moth is a gorgeous creature.

What's That Bug? does not endorse extermination

Subject: anisota virgeniensis eggs
Location: winter park, fl
March 9, 2017 5:11 pm
I found a group of eggs outside on the floor which are from the Anisota virgeniensis family. what should I do with them? what do they feed on? how long do they take to hatch? I’m trying to figure out what tree to put them on, what leaves..
Signature: Natasha

Oakworm Eggs

Dear Natasha,
We are impressed that you were able to identify these eggs and puzzled why you did not know the answer to some of your questions once you had an identity.  Your eggs do indeed look like the eggs of a Pink-Striped Oakworm,
Anisota virginiensis, based on this BugGuide image.  According to BugGuide:  “Larvae feed on leaves of oak.”  We suspect the eggs will likely hatch when new growth is sprouting on the oaks.

I had put them on an oak tree, but I wanted to make sure I was doing the right thing because I would’ve been upset if I didn’t. I tend to overthink things and I like to be re-assured of an answer. Thank you for your response.

We are tagging your posting with the Bug Humanitarian Award.

What's That Bug? does not endorse extermination

Subject: Hairy green caterpillar in Belize
Location: Cayo, Belize
March 3, 2017 2:52 pm
Found this walking “train” of caterpillars today in Cayo, by the Mopan River in Belize. There were like 35 of them, coming down from a tree, each about 5 cm long. The green hair is toxic, got itchy and painful little bumps when I held one.
Signature: Daga

Automeris Caterpillar

Dear Daga,
This is a Giant Silkmoth Caterpillar in the genus Automeris, or a closely related genus.  It might be Automeris metzli which is pictured on the Kirby Wolfe Collection, but we are not certain.  We will contact Bill Oehlke to see if he can provide a species identification.  He may request permission to post your images to his comprehensive site as well and we hope you will grant permission.  The procession image is especially interesting.

Automeris Caterpillars

Dear Daniel,
Oh WOW! this is an amazing moth! Thank you very much for responding. Of course you have permission to post the images- I could not find a similar caterpillar on google just searching for green hairy caterpillar Belize…but I came across your wonderful site and actually identified another bug there (fig sphinx caterpillar). There is so many interesting insects here, but caterpillars specially are catching my attention as they transform to something completely different. Thank you very much again!
Daga Rogers

Procession of Automeris Caterpillars

What's That Bug? does not endorse extermination