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

Subject:  Chrysalis in SE Michigan
Geographic location of the bug:  SE Michigan
Date: 10/19/2018
Time: 11:54 AM EDT
Your letter to the bugman:  These (2) are in my yard.  The immediate area is a vernal marsh area, with swamp milkweed.  They are not on the milkweed, but it is close by.
How you want your letter signed:  Bill Jones

Parasitized Monarch Chrysalis

Dear Bill,
Physically, this appears to be a Monarch chrysalis, however the color is not normal.  A normal Monarch chrysalis is bright green with gold flecks, and as it nears the time for the adult to emerge, the orange wings appears through the exoskeleton.  Your chrysalis appears to have fallen prey to a parasite, probably a Tachinid Fly like the chrysalis pictured on Monarch Lover

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:  Pupa identification
Geographic location of the bug:  Canberra Australia
Date: 10/06/2018
Time: 05:14 AM EDT
Your letter to the bugman:  Been trying to identify this but coming up with no idea. It looks like a tent caterpillar web but not their pupae…
How you want your letter signed:  Thanks

Possibly Pupae of Imperial Jezebel

We wish your image had more critical detail, especially of the individual pupae.  We do not believe these pupae belong to a caterpillar.  We will continue to research this matter, but in the meanwhile, we are posting your request as Unidentified.

Update:  Thanks to a comment from Richard Stickney, we believe these might be the pupae of the Imperial Jezebel or Imperial White, Delias harpalyce, which is pictured on The Victoria Museum site.

What's That Bug? does not endorse extermination

Subject:  What kind of butterfly is this?
Geographic location of the bug:  Taylors SC (Upstate SC)
Date: 10/02/2018
Time: 01:35 PM EDT
Your letter to the bugman:  Is this a type of Gulf Fritillary butterfly? We have about 25 chrysalis hanging on the back of our house. This one (2nd pic) hasn’t opened it’s wings yet, but I didn’t see any orange underneath, like the pictures I found online.
Thank you!
How you want your letter signed:  Tina C

Newly Emerged Gulf Fritillary

Dear Tina,
We love your image of the wall with various stages of development of Gulf Fritillaries.  Your close-ups are of a pre-pupal Gulf Fritillary Caterpillar and a newly eclosed adult Gulf Fritillary.  The dorsal surface of its wings are orange.  You must have a passion flower vine nearby.

Gulf Fritillaries: Stages of Metamorphosis

Pre-Pupal Gulf Fritillary Caterpillar

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:  Stinbug sucking on a monarch caterpillar.
Geographic location of the bug:  Western New York State
Date: 08/09/2018
Time: 09:17 PM EDT
Your letter to the bugman:  My wife was so excited to see a monarch caterpillar in our garden today (8/9/2018), only to discover that its “friend” was sucking its insides out.  I could tell the vampire was a true bug, but I had thought they mostly drank plant sap. How specific are they? Does it specialize in monarchs or does  feed  other larvae? Thanks! You guys are awesome!
How you want your letter signed:  Mark VanDerwater

Spined Soldier Bug preys on Monarch Caterpillar

Dear Mark,
While most Stink Bugs feed on fluids from plants, one subfamily, Asopinae, is predatory.  We believe we have correctly identified your Predatory Stink Bug as
Apoecilus cynicus thanks to this BugGuide image.  According to BugGuide:  “mostly feeds on caterpillars” but luckily they do not limit their diet to solely Monarch Caterpillars so relocating the Predatory Stink Bug far from the milkweed, perhaps in the vegetable patch, would be our solution to repeating this scenario in the future. 

Thank you Daniel! I was poking around insect sights too and came up with the spined soldier bug, Podisus maculiventris. Known to prefer lepidoptera larvae. Also has the dark abdominal tip.

Hi Mark,
We agree that you have provided us with a correction.  The Spined Soldier Bug is another member of the Predatory Stink Bug subfamily, and this BugGuide image is a good match, and the BugGuide description “Black streak on wing membrane + spined humeri are diagnostic” matches your image.  Thanks for bringing this misidentification to our attention. 

What's That Bug? does not endorse extermination