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

Subject:  Caterpillars
Geographic location of the bug:  Orange County, ca
August 28, 2017 12:32 PM
I’m wondering what type these are taking over my plants! There are probably 100 on one bush.
How you want your letter signed:  Anna

Genista Broom Caterpillars

Dear Anna,
You can compare your image to this BugGuide image to verify that you are being troubled by Genista Broom Caterpillars,
Uresiphita reversalis, a species sometimes called a Sophora Worm.  Genista Broom Caterpillars feed on leguminous plants.

What's That Bug? does not endorse extermination

Subject: Bug on dill
Location: Southern Michigan
July 11, 2017 3:57 pm
I found these living on my dill plants, any ideas? They are pretty small, about as long as a grain of rice maybe and so far ive found 3. I live in southeastern michigan. And its summer here right now.
Signature: Thank you

Carrot Seed Caterpillar on Dill

We have not had any luck identifying your caterpillar.  The only caterpillars we can find associated with dill in Eastern North America is the Black Swallowtail Caterpillar, and your caterpillar is most definitely not a Black Swallowtail Caterpillar.  Your caterpillar does remind us of the Sophora Worm, but they feed on legumes and dill is not a legume.  Perhaps one of our readers will recognize this caterpillar.

Ive talked to another girl I know and she said its called a purple carrot seed caterpillar/moth.  Ever heard of those?

The Carrot Seed Caterpillar pictured on BugGuide does appear correct.  According to BugGuide:  “The larvae feed on umbellifers, particularly wild carrot” and “‘Recently introduced into North America (first specimen reported from 2002) and now known from Illinois, Indiana, Michigan and Wisconsin’. * (information from – Moth Photographers Group). “

What's That Bug? does not endorse extermination

Subject: Larvae identification
Location: Southwest MI
August 31, 2016 12:18 pm
I have several tent nests on the Prairie Dogbane (I believe this is the plant, though my MIL says it’s milkweed) growing in my front yard. These are silky nests on the leaf ends of the plants, and they aren’t found on any other plant species in my flowerbeds. The eggs are tiny and dark, almost black, and the larvae are less than an inch in length, orangish in color, with black spots and no hairs. The larvae may still be immature, though there were several sizes in the nests, and these were the largest I found. Can you identify these insects? Are they beneficial or pests? Thanks for your help!
Signature: Val

Dogbane Saucrobotys Caterpillars

Dogbane Saucrobotys Caterpillars

Dear Val,
Thanks for providing the name of the food plant, because we didn’t have a clue about the identity of these caterpillars, but we quickly identified them as Dogbane Saucrobotys Caterpillars,
Saucrobotys futilalis, thanks to this image on BugGuide.  According to BugGuide:  “Caterpillar feeds on dogbane, Apocynum species, including Apocynum cannabinum (Indian Hemp), and on milkweeds, Asclepias species, including butterfly weed, Asclepias tuberosa (Maryland Moths). Larvae make conspicuous silk nests on their host plant.”

What's That Bug? does not endorse extermination

Subject: Overcame with bugs
Location: Southeast new mexico
June 5, 2015 6:34 pm
All of a sudden these showed up and within a week how do I get rid of them. In a week they killed a very healthy Spanish broom bush.
Signature: What to do

Genista Broom Moth Caterpillar

Genista Broom Moth Caterpillar

This is a Sophora Worm or Genista Broom Moth Caterpillar, Uresiphita reversalis, and a year ago they defoliated a Golden Chain Tree in our own Los Angeles garden.  The leaves grew back and the tree survived.

What's That Bug? does not endorse extermination

Subject: Caterpillar ID
Location: Las Vegas NV, Mojave Desert
November 6, 2014 4:48 pm
Found about 20 of these caterpillars on a Sweet Broom bush in my yard on November 5, 2014. Please help with ID I am stumped
Signature: P Shaw

Sophora Worm

Sophora Worm

Dear P Shaw,
This is a Sophora Worm or Genista Broom Moth Caterpillar.  They feed on broom and related plants
.

What's That Bug? does not endorse extermination

Subject: Catapillar invasion

Location: Pacifica CA
October 26, 2014 2:42 pm
I have been invaded by hundreds of these catapillars around the outside of my house … Can you please give me some info on these critters – thanks !
Signature: Gina

Genista Broom Caterpillar

Sophora Worm

Hi Gina,
Your caterpillar is known as a Sophora Worm, the larval form of the Genista Broom Moth,
Uresiphita reversalis, and you can verify our identification by viewing this matching image on BugGuideAccording to Bugguide:  “‘Sophora Worm’ is reference to the native host genus: Sophora.  ‘Genista Broom Moth’ is an odd common name for a native North American moth as Genista (common name of ‘broom’) is an Old World genus, family Fabaceae.”  BugGuide also notes:  “Larvae feed on Acacia, Baptisia, Genista, Lupinus, Texas Mountain Laurel (Sophora secundiflora) and other pea family shrubs. Also reported on Crapemyrtle (Lagerstroemia indica) and honeysuckle (Lonicera spp.)” so we are speculating that one of those plants might be growing in your yard.

What's That Bug? does not endorse extermination