Monarchs and Milkweed of Los Angeles

To participate in this project, simply take photos of any Monarch butterflies (Danaus plexippus) or milkweed plants (Genus Asclepias) that you see in Greater Los Angeles, and post to this project.

Observations may also be submitted by emailing nature@nhm.org.

Monarch observations may include monarchs in any one of their four life cycle stages: egg, larva (caterpillar), pupa (chrysalis), adult (butterfly). http://www.monarchwatch.org/biology/cycle1.htm

Greater Los Angeles is defined as: Los Angeles County, Orange County, Riverside County, San Bernardino County, and Ventura County.

Posted on March 04, 2014 04:30 PM by rsmart rsmart | 3 comments | Leave a comment

Recent observations View all

Photos / Sounds

What

Monarch Butterfly Danaus plexippus

Observer

rsmart

Date

October 15, 2014 12:22 PM PDT

Description

We learned how to tag monarch butterflies.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 3, 2014 09:28 AM PDT

Description

Found caterpillars on my bloodflower milkweed. Since they haven't been able to grow recently (wasp predation?), I brought these in and put them in a butterfly cage. Each day I dumped their water and gave them new cuttings from my plants. Photo with ruler with MM for size reference. These 2 started leaving their plants on Oct. 6, when about the size of a pinkie finger.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 5, 2014 12:59 PM PDT

Description

Still eating and growing indoors

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 6, 2014 11:42 AM PDT

Description

2 little ones found

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 7, 2014 02:07 PM PDT

Description

One liked a branch and one likes the cheesecloth roof. I'll call them pupae at this stage.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 7, 2014 09:56 AM PDT

Description

Male monarch (dots on the vein on the hind wing), resting or sleeping in tree.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 4, 2014 06:28 AM PDT

Description

One of the 2 caterpillars, with inches at right of ruler, MM next to the caterpillar. These were found wild, but brought in to help with survival.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 6, 2014 10:02 AM PDT

Description

The caterpillars are pretty big and starting to leave their food plants. Moved to a bigger container and included milkweed in case they are just going to another instar, and added lantana and basil sticks so they can pupate on them, because I have seen many that leave their host plant to do so. I needed the smaller cage for a couple of little ones I just found outside.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 7, 2014 07:27 AM PDT

Description

The 2 are done eating. Both were hanging from their rear ends in J shape like I have seen them do, sometimes for a few days before they become green and hang out till they emerge as a butterfly.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 7, 2014 04:29 PM PDT

Description

The first to change, chose the stick. The second one chose the cheescloth and still is not quite fully formed, is lumpy-the top is bulkier than it will be later, and missing the gold dots.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

October 3, 2014 09:30 AM PDT

Description

Mama monarch stayed around a lot this day, laying eggs on flowers of bloodflower milkweed, obtained about a year ago as seedlings and cuttings from approximately 2 miles to the east of this location. The seedlings were in pathways and would have been killed if I didn't take them. That property has approximately 50 ft row of plants and has had probably a couple of hundred caterpillars this year.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

September 18, 2014 08:16 AM PDT

Description

Egg on a potted plant, and 2 small caterpillars on potted seedling

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

September 17, 2014 11:38 AM PDT

Description

Monarch laying eggs, on potted bloodflower milkweed in front planter. Large caterpillar later discovered on that potted plant, Oct. 7.

Photos / Sounds

What

Bloodflower Milkweed Asclepias curassavica

Observer

cspnl

Date

September 2, 2014 11:57 AM PDT

Description

Cuttings and seedlings have matured, bloomed, and seeds are flying. If the seed pods are nearly mature and cut, and put in a pot, they sprout.

rsmart Project curator ID

Asclepias curassavica

Photos / Sounds

What

Monarch (Danaus plexippus) Danaus plexippus

Observer

biochristine

Date

July 2, 2013 01:03 PM PDT

Description

Lots of Monarchs out today.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

What

Monarch Danaus plexippus

Observer

mickeylong

Date

September 30, 2014

Description

One of three seen in willow and marshy habitat. These visiting Common Sunflower, Helianthus annuus.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Danaus plexippus

Observer

mickeylong

Date

March 24, 2013

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Danaus plexippus

Observer

mickeylong

Date

September 26, 2014

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

Square

What

Monarch Butterfly Danaus plexippus

Observer

cindycrawford900

Date

May 18, 2013 10:20 AM HST

Description

Lost count at about a dozen Monarchs flying along the border of Gum Grove Park and Los Cerritos Wetlands

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

What

Monarch Butterfly Danaus plexippus

Observer

cindycrawford900

Date

April 28, 2010

Description

Picture 1 = Monarch Butterfly caterpillars on milkweed on the border of Los Cerritos Wetlands at the Heron Pointe Cultural Educational Center walk. Monarchs are frequently seen at Los Cerritos Wetlands, Heron Pointe and Gum Grove Park (all 3 areas are adjacent to each other). The Monarch Butterfly pic was taken a short distance away closer to Gum Grove Park on the property line of Los Cerritos Wetlands.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

Square

What

Monarch Butterfly Danaus plexippus

Observer

quantron

Date

September 19, 2014

Place

Gardena (Google, OSM)

Description

Monarch caterpillar.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

14307810613_d3bd1dc358_s

What

desert milkweed Asclepias erosa

Observer

jaykeller

Date

May 24, 2014 10:14 AM PDT

rsmart Project curator ID

Asclepias erosa

Photos / Sounds

What

Monarch Butterfly Danaus plexippus

Observer

uheise

Date

May 14, 2014 09:41 AM PDT

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

Square

What

Monarch Butterfly Danaus plexippus

Observer

cspnl

Date

September 6, 2014 11:13 AM PDT

Description

on red valerian

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

Square

What

Monarch Butterfly Danaus plexippus

Observer

mickeylong

Date

July 18, 2014

Photos / Sounds

Square

What

Monarch Butterfly Danaus plexippus

Observer

quantron

Date

August 25, 2014

Description

Monarch caterpillar.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

Monarch Butterfly Danaus plexippus

Observer

quantron

Date

August 25, 2014

Description

Male (& female not shown) monarch butterfly flew around until 9/10/14.

rsmart Project curator ID

Danaus plexippus

Photos / Sounds

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What

bloodflower milkweed Asclepias curassavica

Observer

rsmart

Date

August 25, 2014 01:57 PM PDT

rsmart Project curator ID

Asclepias curassavica

Photos / Sounds

Square

Observer

nhm_nature

Date

August 12, 2014

Place

(Somewhere...)

Description

Observation and photo by Susan Whisnant, sent to nature@nhm.org.

Photos / Sounds

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What

Narrowleaf milkweed Asclepias fascicularis

Observer

nhm_nature

Date

August 12, 2014

Place

(Somewhere...)

Description

Observation and photos by Susan Whisnant, sent to nature@nhm.org.

More observations

About

The Natural History Museum of Los Angeles County (NHM) has begun studying our local urban environment to better understand the biodiversity that lives in the Greater Los Angeles Area. Part of this study includes knowing where local populations of monarch butterflies and milkweed plants are found.

Why are we including milkweed plants in our monarch study? Milkweed is a host plant for ...more ↓

10814-mini rsmart created this project on March 04, 2014
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