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

Subject: Caterpillar
Location: southern ontario
August 25, 2015 6:41 pm
thought this might be a eastern swallowtail tiger but it’s black. Any help much appreciated.
Signature: Susan

Tiger Swallowtail Caterpillar

Tiger Swallowtail Caterpillar

Dear Susan,
We cannot begin to speculate if this is an Eastern Tiger Swallowtail Caterpillar or a Canadian Tiger Swallowtail Caterpillar, and we suspect DNA analysis might be needed to determine its exact taxonomy.  Tiger Swallowtail Caterpillars often change from green to orange or purple as they are getting ready to transform into a chrysalis, and they also leave the trees whose leaves they were feeding upon in search of an ideal location for pupation.  In light of the variation in color of Tiger Swallowtails, from light to dark and in between, and even more strangely because of the presence of gynandromorphs, the correct term for an hermaphrodite, we can’t help but to wonder if the especially dark coloration of your individual might lead to a variation in the adult Tiger Swallowtail.

A duplicate sighting
Subject: Caterpillar
Location: MacTier, Ontario, Canada
August 25, 2015 10:19 am
Found this caterpillar on the greens at Rocky Crest Golf Course in MacTier, Ontario (CANADA). Would like to know what it is. Thanks.
Signature: Tricia McLelland

Dear Tricia,
This exact image was submitted by Susan and we responded.

Funny, as it was me who discovered it and took the photo. I have no idea who Susan is. Thanks.

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What's That Bug? does not endorse extermination

Subject: A shiny green visitor!
Location: Near Altmar, NY
August 25, 2015 9:20 am
We live in a rural area about 40 miles north of Syracuse, New York, close to a now extinct village called Altmar. Our property borders wooded state land which surrounds a beaver pond that is also on the back of our woods. We recently had the sad experience of having to remove a large maple tree due to disease. It had started not even as tall as our home but by the time we removed it, it was towering over it. In cutting wood from the downed tree and sorting out leafy branches, this bug ended up on my husband’s pants. It is very unusual looking with a shiny light green smooth surface and it walked like a caterpillar. We’d never seen anything like it in the 20 years we’ve lived in this house. I took this picture as soon as we saw it on August 23.
Thanks for any help identifying our little green visitor!
Signature: Lisa P

Oblique Heterocampa Caterpillar

Oblique Heterocampa Caterpillar

Dear Lisa,
As two days have passed between the time you took the image and the time you wrote to us, we hope you relocated to another maple tree this Prominent Moth Caterpillar, possibly the Oblique Heterocampa due to its resemblance to the individual in this BugGuide image.

Oblique Heterocampa Caterpillar

Oblique Heterocampa Caterpillar

Our property is probably 80% maple trees and we did bring him back over to the woods after we took the picture! (My husband just told me he actually put him on a maple directly.) Thanks for the info! :)

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What's That Bug? does not endorse extermination

Subject: Imperial Moth?
Location: South Central Pa
August 24, 2015 5:03 pm
My husband found this on his maple tree.
8.24.15
We’ve never seen a caterpillar this big.
Our neighbor said it’s a monarch but your page is looking like imperial moth
Signature: Amy Jo

Imperial Moth Caterpillar

Imperial Moth Caterpillar

Dear Amy Jo,
Your identification of this magnificent Imperial Moth Caterpillar is correct, and judging by its size, it will soon spin its cocoon.

Thank you.     Its the prettiest caterpillar I’ve ever seen.  I’m checking our trees for more!  Lol

Sandra Mason Comer, Andrea Leonard Drummond, Ann Levitsky, Amy Jo, Mary Lemmink Lawrence, Jaye Ridet liked this post
What's That Bug? does not endorse extermination

Subject: unknown bug
Location: marsh creek ca
August 23, 2015 12:17 pm
A friend found this bug/ catapilar in marsh creek california.
Signature: with a signature

Early Instar Achemon Sphinx Caterpillar

Early Instar Achemon Sphinx Caterpillar

We believe your Hornworm is an early instar Achemon Sphinx that has not yet shed its caudal horn, which is a typical part of the maturing of the species.  As they grow and age, Achemon Sphinx Caterpillars lose the horn, leaving a caudal bump as the only evidence a horn once existed.  See this BugGuide image for comparison.

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What's That Bug? does not endorse extermination

Subject: Mustachio
Location: Downingtown PA
August 21, 2015 8:00 pm
We saw this bug today, August 21, in Downingtown Pennsylvania. It was creeping along a leaf like it had lots of tiny centipede-like legs on the underside.
Signature: Amanda

Monkey Slug

Monkey Slug

Hi Amanda,
Believe it or not, this is actually a caterpillar commonly called a Monkey Slug.  Handle with caution, or not at all, as the Monkey Slug can sting.

Kyla Gunter Gatlin, H.G. Hollans, Mandi Morris Warren, Maryann Struman, Jerry Pittman, Gill Armstrong, Hayley Nasman, Kimberly Wochele, Dorinda Hogue Troutman, Marieke Bruss, Mary Lemmink Lawrence, Mary Sheridan Page Fatzinger, Carolyn Camp, Aundrea Murillo-Faynik, Jop Caraan Maligaya, Ann Levitsky, Elizabeth Ponce liked this post
What's That Bug? does not endorse extermination

Subject: Large Green Caterpillar
Location: Gatineau, Qc (just north of Ottawa)
August 21, 2015 6:35 pm
Hello. I observed and photographed this amazing specimen on August 7th at our cottage. It was 4-5 inches long. I searched and I searched the web to try to ID what type of moth this is, but without any success (but I did learned about many other beautiful large green caterpillars!!). I’ll be able to sleep better and smarter once I know what this is :-)
Signature: Daniel C.

Imperial Moth Caterpillar

Imperial Moth Caterpillar

Dear Daniel,
This is an Imperial Moth Caterpillar, and you are correct that it will eventually metamorphose into a large and beautiful Imperial Moth.

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What's That Bug? does not endorse extermination