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

Subject:  Creepy thing in garden
Geographic location of the bug:  on my citrus dwarf mandarin tree
Date: 10/17/2018
Time: 09:00 PM EDT
Your letter to the bugman:  I’m assuming it may be some kind of moth maybe? But it looks so reptilian it’s creeping me out. Do you know what this is? Is it a beneficial creature to the garden?
How you want your letter signed:  doesn’t matter

Orange Dog

Dear doesn’t matter,
Please provide us with a “geographic location of the bug.”  According to Sciencing:  “Geographic location refers to a position on the Earth. ”  Other online sources give similar definitions.  While it is helpful to know that it was found on a “citrus dwarf mandarin tree,” we can’t say for certain that this is an Orange Dog, but that is our opinion provided your sighting was in North America.  The loss of leaves from a single caterpillar will not compromise the health of your tree.  The Orange Dog is the caterpillar of a Giant Swallowtail.

What's That Bug? does not endorse extermination

Subject:  Caterpillar
Geographic location of the bug:  North East Alabama
Date: 09/11/2018
Time: 04:57 PM EDT
Your letter to the bugman:  What kind of caterpillar is this?
How you want your letter signed:  Lisa

Spicebush Swallowtail Caterpillar

Dear Lisa,
The orange color on your Spicebush Swallowtail Caterpillar indicates it is pre-pupal, and getting very close to forming a chrysalis.

Spicebush Swallowtail Caterpillar

What's That Bug? does not endorse extermination

Subject:  What type of caterpillar is this?
Geographic location of the bug:  Eastern South Dakota
Date: 07/17/2018
Time: 09:50 AM EDT
Your letter to the bugman:  This guy reminds me of the hawk moths that frequent our petunias! But he’s not exactly like the ones on your page.  What is he!  He’s about 1.5 inches long.
How you want your letter signed:  Robin jarrett

Tiger Swallowtail Caterpillar

Dear Robin,
There are several different species of Tiger Swallowtails and they all have similar looking caterpillars.  South Dakota is included in the BugGuide data for sightings of the Eastern Tiger Swallowtail.  Its coloration indicates this Eastern Tiger Swallowtail Caterpillar is prepupal.

What's That Bug? does not endorse extermination

Subject:  Caterpillar
Geographic location of the bug:  Gettysburg, PA
Date: 07/24/2018
Time: 06:08 PM EDT
Your letter to the bugman:  What is this. Just found it on my parsley plant.
How you want your letter signed:  Tina

Parsley Worm or Black Swallowtail Caterpillar

Dear Tina,
This is a Black Swallowtail Caterpillar, and some common names are “Dill Worm, Parsley Worm, Celery Worm, Carrot Worm, Fennel Worm” according to BugGuide, because “The common names for the caterpillars vary because they can be found on many important cultivated plants in the Carrot Family. Pick the host plant, add the word ‘worm’, and you have another common name that has probably been used and published somewhere.”

What's That Bug? does not endorse extermination

Subject:  Caterpillar ID
Geographic location of the bug:  Warner’s Bay NSW
Date: 05/11/2018
Time: 04:12 AM EDT
Your letter to the bugman:  Can you identify this caterpillar which was on a dwarf Lime Citrus tree? I tried uploading a video before. Wouldn’t allow it. Couldn’t cancel it. Had to start over
How you want your letter signed:  Brian Holt

Orchard Swallowtail Caterpillar

Dear Brian,
This is the Caterpillar of an Orchard Swallowtail,
Papilio aegeus, and you can verify our identification on Butterfly House where it states:  “Although this Caterpillar is a pest on suburban Lemon trees, it is one of the most interesting caterpillars in Australia, Both its structure and its behaviour have evolved to an extraordinary degree to give it protective mechanisms against predators. It also grows into one of the largest butterflies to grace suburban gardens.”  Here is an image from FlickR.  Though they feed on the leaves, unless you have a very small tree and a large number of caterpillars, the damage is not lethal to the tree.  We would allow the caterpillar to remain so you can enjoy the adult Orchard Swallowtail.

Thank you for your help. This is exactly the advice I gave my customers on my gardening FB Page. I’d like to publish your response there.
Regards, Brian Holt
HOLTS Prestige Gardens

What's That Bug? does not endorse extermination

Subject:  What caterpillar
Geographic location of the bug:  Hong Kong
Date: 04/15/2018
Time: 11:52 PM EDT
Your letter to the bugman:  Hi there! We found these caterpillars on a lime plant we were growing in school. It is springtime in Hong Kong. There are many plants and trees in our playground, but there are no other lime plants here.  The lime plant was a growing project, And isn’t normally in the playground so I wonder if this is actually their usual food. Do you know what species these caterpillars are and what do they eat? Thank you
How you want your letter signed:  From Maddie

Common Mormon Caterpillars

Dear Maddie,
When caterpillars are found on a plant, one can with some assurance deduce that the caterpillar is feeding on that plant.  Butterflies and moths will lay eggs on plants that are suitable food sources for their caterpillars and that is what happened to your lime tree.  There are several species of Swallowtail Butterflies with similar looking caterpillars that feed on lime and other citrus tree leaves.  We believe your caterpillars are those of a Common Mormon,
Papilio polytes, and according to Butterflies of Singapore:  “The local host plants include the Indian Curry Leaf plant and various Citrus spp. One notable addition is the Mangrove Lime (Merope angulata) which was found to be utilized as larval host plant by members of the Plant Systematics group of the Department of Biological Sciences (NUS) in the recent past.”  The site also has nice images of the caterpillars and they look like your individuals.  We would not rule out that these might be the caterpillars of a Lime Swallowtail, Papilio demoleus, which is also pictured on the Butterflies of Singapore site.

What's That Bug? does not endorse extermination