Salt Marsh Caterpillars

On Sunday, May 31, 2020, I happened upon dozens of salt marsh moth larvae. According to Wikipedia,
"The larva, known as the salt marsh caterpillar, which grows to about 5 cm (2 in) in length, is highly variable in color, ranging from pale yellow to rusty orange brown to dark brownish black. It is hairy, with numerous soft setae, growing in tufts (several tufts on each segment), with a few individual hairs that are longer toward the end of the body. The thoracic and abdominal segments have a few rows of orange or black warts, and it has one tiny white dot per segment, on both sides of its body."

I found them on the following six plants (in order of frequency):

  • Poison Hemlock (Conium maculatum)
  • Broadleaved Pepperweed (Lepidium latifolium)
  • Bindweeds (Genus Convolvulus)
  • Armenian Blackberry (Rubus armeniacus)
  • Stinking Chamomile (Anthemis cotula)
  • Shortpod Mustard (Hirschfeldia incana)

There were so many different sizes, colors, and patterns of these delightful caterpillars, that I went a little hog-wild in photographing them, but I don't know when I'll see them again.

Reference:
https://bugguide.net/index.php?q=search&keys=Estigmene+acrea&search=Search

Posted by truthseqr truthseqr, June 03, 2020 08:22 PM

Observations

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:13 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:13 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:14 AM PDT

Description

On broadleaf pepperweed.

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:15 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:17 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:18 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:18 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:24 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:24 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:25 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:25 AM PDT

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:25 AM PDT

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:26 AM PDT

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:26 AM PDT

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:27 AM PDT

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:30 AM PDT

Description

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 08:14 AM PDT

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

truthseqr

Date

May 31, 2020 09:30 AM PDT

Description

On shortpod mustard.

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