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

Subject:  Decimators
Geographic location of the bug:  North-East Coast of Taiwan
Date: 02/15/2019
Time: 05:23 AM EDT
Your letter to the bugman:  Learn’d Fellows,
Every year at this time, my wild fig, having just sent forth it’s tremulous new leaves, is malevolently machete’d bare by these horned devil mowers. I have transplanted them to a wilder fig. Still I would  like to know my foe. Some deep-leaf sleeper-cells remain. Thanking you, in solidarity, ever-vigilantly.
How you want your letter signed:  Castellano

Common Mapwing Caterpillars

Dear Castellano,
We believe these are butterfly caterpillars from the family Nymphalidae, and that is where we are going to begin our research.  Thanks for providing the host plant.  That is often extremely helpful, and that information quickly produced this FlickR image of a Common Map Butterfly Caterpillar,
Cyrestis thyodamas, and the poster wrote:  “The curious mind must ask, why is this caterpillar like this?  My observational response is that these larvae feed on the new leaves of Ficus trees. Developing shoots appear as tightly swirled red tips at the ends of branches and these caterpillars line themselves up along the axis of open leaves, heads closest to the origin of the leaf, with their spines imitating the fresh foliage that is developing.”  We like the name Common Mapwing which is used on Learn About Butterflies where it states:  “The Common Mapwing is usually encountered singly or in two’s and three’s, in open forest edge habitats. Males are often seen on gravel roads or along pebble-strewn river beaches, where they bask in full sunlight while imbibing mineralised moisture. They are initially nervous and difficult to approach but once they start imbibing they tend to remain at the same spot for several minutes.  Females are seen less often, but sometimes encountered along forest trails, or nectaring at flowers in forest gardens.  Both sexes habitually rest beneath leaves with their wings outspread.  Less commonly they will bask on the upper surface of large leaves, but tend to only do so in areas of dappled sunlight.”  This represents a new species for our site.

 

What's That Bug? does not endorse extermination

Subject:  Caterpillar found in Vietnam
Geographic location of the bug:  Vietnam
Date: 01/20/2019
Time: 03:07 PM EDT
Your letter to the bugman:  Can you ID this creature?
How you want your letter signed:  Connie E

Baron Caterpillar

Dear Connie,
This is a Baron Caterpillar in the genus
Euthalia.  There is a similar looking image on Jungle Dragon.

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:  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:  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

Subject:  Caterpillar ID?
Geographic location of the bug:  Indianapolis
Date: 07/24/2018
Time: 08:19 PM EDT
Your letter to the bugman:  Found this caterpillar and can’t figure out the type! Small, like the width of a thumb. Strange head. Thanks for the help! Found on a recently fallen oak tree, still with live leaves.
How you want your letter signed:  Ryan

Emperor Caterpillar

Dear Ryan,
This is an Emperor Caterpillar in the genus
Asterocampa and here is a BugGuide image for reference.  We don’t believe they feed on oak.  Is there a hackberry shrub near where the oak fell?

What's That Bug? does not endorse extermination