Plant on which eggs were deposited/larva feeding.

Datatype: taxon
Created by: lynnwatson lynnwatson

Observations specifying this field

Observation Insect Host Plant

Photos / Sounds

What

American Lady (Vanessa virginiensis)

Observer

aparrot1

Date

April 21, 2024 12:53 PM PDT

Description

American Lady butterfly with the two large (distinctive) eye spots on hind wings nectaring on Western Wallflower blossoms.

American Lady (Vanessa virginiensis) Is a medium-size butterfly in the Brush-footed Butterflies (Nymphalidae) family with a wingspan of 1.75-2.0 inches.
To distinguish from similar Painted and West Coast Ladies: “American Ladies have big eyes and an open mind.” The big eyes refer to the two large eye spots on the hind wings. (I'm not sure what the open mind refers to). Favorite food plants: Vetch, Pearly Everlastings, Mugwort and other plants in the Asteraceae family.

Butterflies of Monterey County: A comprehensive guide to finding and identifying 91 species of butterflies in Monterey County, Chris Tenney and Jan Austin, August 2023, pp. 136-137.

eButterfly: https://www.e-butterfly.org/ebapp/en/species/profile/262

Butterflies Through Binoculars: The West: a field guide to the butterflies of western North America, by Jeffrey Glassberg, 2001, pp. 188-189.

Bug photographs from the U.S/Canada for I.D: https://bugguide.net/index.php?q=search&keys=Vanessa+virginiensis

Butterflies and Moths of North America https://www.butterfliesandmoths.org/species/Vanessa-virginiensis

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Butterfly and Caterpillar (General References)

Field Guide to California Insects, by Kip Will, J. Gross, D. Rubinoff , J. Powell, 2nd ed., 2020 (Lepidoptera, pp. 347-426)

BugGuide: Butterflies and Moths (U.S. and Canada) clickable categories or use search bar: https://bugguide.net/node/view/57

Glossary of Butterfly (and Moth) Terminology: https://butterfly.ucdavis.edu/resources/glossary

Butterflies of Monterey County: A comprehensive guide to finding and identifying 91 species of butterflies in Monterey County, by Chris Tenney and photograher Jan Austin, August 2023, pp.xx and Butterflies of Monterey County (companion website to text): https://www.montereybutterflies.online/

eButterfly: (2115+ species) https://www.e-butterfly.org/ebapp/en/observations/explore

Butterflies Through Binoculars: The West: a field guide to the butterflies of western North America, by Jeffrey Glassberg, 2001

Butterflies of Central and Northern California, a laminated pamphlet (guide to common and notable species) by Jim Brock, 2023

Caterpillar Anatomy diagram and Butterfly Basics: https://www.enchantedlearning.com/subjects/butterfly/activities/printouts/caterpillarprintout.shtml Life Cycle of a Butterfly: Egg --> Larva (the caterpillar) --> Pupa (the chrysalis or cocoon) --> Adult.

Caterpillars: INaturalist Project https://www.inaturalist.org/projects/california-caterpillars

Wagner's Caterpillars of Western North America (coming soon) "1450+ species accounts in progress" INat thebals 6/6/23.

  Western Wallflower (Erysimum capitatum)

Photos / Sounds

What

Brown-hooded Owlet (Cucullia convexipennis)

Observer

ny_wetlander

Date

September 11, 2019 03:33 PM EDT
  Asters and Allies (Tribe Astereae)

Photos / Sounds

What

Abbott's Sphinx (Sphecodina abbottii)

Observer

osmeterium

Date

July 2, 2023 04:54 PM EDT

Description

Found 7/2/2023 on Virginia creeper
Molted: 7/7, 7/12
Unfortunately I had to travel, so I released it on 7/13. It was disappointing because it was my first time finding an Abbott's sphinx.

Tags

  Virginia Creeper (Parthenocissus quinquefolia)

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

lappelbaum

Date

April 20, 2024 10:18 AM CDT
  Yellow Passionflower (Passiflora lutea)

Photos / Sounds

Observer

lappelbaum

Date

April 20, 2024 09:08 AM CDT
  Swamp Laurel Oak (Quercus laurifolia)

Photos / Sounds

What

Variable Checkerspot (Euphydryas chalcedona)

Observer

aparrot1

Date

April 21, 2024 12:48 PM PDT

Description

Variable Checkerspot nectaring on Western Wallflower blossoms.

Variable Checkerspot (Euphydryas chalcedona) is a medium-size butterfly in the Brush-footed Butterflies (Nymphalidae) family with a wingspan of 1.5-2 inches. The antennae are always orange, including the club. It's wing appearance is "variable," dependent on subspecies (and there are many ssp.) It has one flight March-July. It is found in open areas in oak woodland and chaparral, often along trails. Larval food plants include monkeyflowers and Paintbrush (Castilleja). It is a puddler.

Butterflies of Monterey County: A comprehensive guide to finding and identifying 91 species of butterflies in Monterey County, by Chris Tenney and photograher Jan Austin, August 2023, pp. 118-119.

eButterfly: https://www.e-butterfly.org/ebapp/en/species/profile/247

Link to observation of caterpillars on Orange Bush Monkeyflower plant: https://www.inaturalist.org/observations/107807408
My favorite photo/observation of Variable Checkerspot face: https://www.inaturalist.org/observations/112100146 and https://www.inaturalist.org/observations/75128788

Butterflies Through Binoculars: pp. 170-173.

Butterflies and Moths of North America: https://www.butterfliesandmoths.org/species/Euphydryas-chalcedona

BugGuide: https://bugguide.net/index.php?q=search&keys=Euphydryas+chalcedona

Kaufman Field Guide to Butterflies of North America. Brock and Kaufman, 2003, pp. 194-195.

Butterflies & Their Favorite Flowering Plants: Anza-Borrego Desert State Park & Environs, Lynn and Gene Monroe, 2004, p. 73.

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Butterfly and Caterpillar (General References)

Field Guide to California Insects, by Kip Will, J. Gross, D. Rubinoff , J. Powell, 2nd ed., 2020 (Lepidoptera, pp. 347-426)

BugGuide: Butterflies and Moths (U.S. and Canada) clickable categories or use search bar: https://bugguide.net/node/view/57

Glossary of Butterfly (and Moth) Terminology: https://butterfly.ucdavis.edu/resources/glossary

Butterflies of Monterey County: A comprehensive guide to finding and identifying 91 species of butterflies in Monterey County, by Chris Tenney and photograher Jan Austin, August 2023, pp.xx and Butterflies of Monterey County (companion website to text): https://www.montereybutterflies.online/

eButterfly: (2115+ species) https://www.e-butterfly.org/ebapp/en/observations/explore

Butterflies Through Binoculars: The West: a field guide to the butterflies of western North America, by Jeffrey Glassberg, 2001

Butterflies of Central and Northern California, a laminated pamphlet (guide to common and notable species) by Jim Brock, 2023

Caterpillar Anatomy diagram and Butterfly Basics: https://www.enchantedlearning.com/subjects/butterfly/activities/printouts/caterpillarprintout.shtml Life Cycle of a Butterfly: Egg --> Larva (the caterpillar) --> Pupa (the chrysalis or cocoon) --> Adult.

Caterpillars: INaturalist Project https://www.inaturalist.org/projects/california-caterpillars

Wagner's Caterpillars of Western North America (coming soon) "1450+ species accounts in progress" INat thebals 6/6/23.

  Western Wallflower (Erysimum capitatum)

Photos / Sounds

What

Johnson's Jumping Spider (Phidippus johnsoni)

Observer

kgoforth

Date

April 23, 2024 11:00 AM PDT

Place

San Carlos (Google, OSM)

Description

Approximately 1/2” long

unknown

Photos / Sounds

What

Ash Petiole Gall Midge (Dasineura tumidosae)

Observer

allan7

Date

April 19, 2024 01:55 PM CDT
  Section Melioides

Photos / Sounds

What

Smeared Dagger (Acronicta oblinita)

Observer

ceiseman

Date

July 27, 2017 09:37 AM EDT

Description

On Lysimachia terrestris.

  Swamp Candles (Lysimachia terrestris)

Photos / Sounds

What

Thimbleberry Gallmaker (Diastrophus kincaidii)

Observer

ccoslor

Date

April 21, 2024 06:06 PM PDT
  Thimbleberry (Rubus parviflorus)

Photos / Sounds

What

Thimbleberry Gallmaker (Diastrophus kincaidii)

Observer

ccoslor

Date

April 21, 2024 04:17 PM PDT
  Thimbleberry (Rubus parviflorus)

Photos / Sounds

What

Northern Cloudywing (Thorybes pylades)

Observer

aparrot1

Date

April 21, 2024 11:19 AM PDT

Description

Link to Western Wallflower (Erysimum capitatum) host plant observation: https://www.inaturalist.org/observations/208642233

Northern Cloudywing (Thorybes pylades) A.k.a Cecropterus pylades. Small butterfly in the Skippers (Hesperiidae) family with a wingspan of 1.25-1.5 inches. It has one flight, March-July. It is found on hilltops in the Santa Lucia mountain range, riparian canyons, and in pine-oak woodlands. Favorite adult nectar plants: mints, vetches, thistle, Brodiaea, and California Buckeye. Larval food plants are in the Pea family: Acmispon, Lotus, and Vetches.

Butterflies of Monterey County: A comprehensive guide to finding and identifying 91 species of butterflies in Monterey County, by Chris Tenney and photograher Jan Austin, August 2023, 160-161.
(calls it by genus name Cecropterus, as of 4/22/24)

eButterfly (lists 6 subspecies, calls it by genus name Cecropterus, as of 4/22/24)
https://www.e-butterfly.org/ebapp/en/species/profile/5

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Butterfly and Caterpillar References (in general)

eButterfly: (2115+ species) https://www.e-butterfly.org/ebapp/en/observations/explore

Butterflies of Monterey County: A comprehensive guide to finding and identifying 91 species of butterflies in Monterey County, by Chris Tenney and photograher Jan Austin, August 2023, pp.xx and Butterflies of Monterey County (companion website to text): https://www.montereybutterflies.online/

Butterflies Through Binoculars: The West: a field guide to the butterflies of western North America, by Jeffrey Glassberg, 2001

Glossary of Butterfly (and Moth) Terminology: https://butterfly.ucdavis.edu/resources/glossary

BugGuide: Butterflies and Moths (U.S. and Canada) clickable categories or use search bar: https://bugguide.net/node/view/57

Field Guide to California Insects, by Kip Will, J. Gross, D. Rubinoff , J. Powell, 2nd ed., 2020 (Lepidoptera, pp. 347-426)

Butterflies and Moths of North America https://www.butterfliesandmoths.org/species_search

Butterflies of Central and Northern California, a laminated pamphlet (guide to common and notable species) by Jim Brock,, 2023

Caterpillar Anatomy diagram and Butterfly Basics: https://www.enchantedlearning.com/subjects/butterfly/activities/printouts/caterpillarprintout.shtml Life Cycle of a Butterfly: Egg --> Larva (the caterpillar) --> Pupa (the chrysalis or cocoon) --> Adult.

Caterpillars: INaturalist Project https://www.inaturalist.org/projects/california-caterpillars

Wagner's Caterpillars of Western North America "last we heard 1450 species accounts were in progress" thebals 6/6/23.

http://socalbutterflies.com/index.htm

  Western Wallflower (Erysimum capitatum)

Photos / Sounds

What

Common Sawflies (Family Tenthredinidae)

Observer

swampster

Date

April 21, 2024 05:59 PM EDT

Description

Ovipositing (?) on Smooth Alder (Alnus serrulata).

  Smooth Alder (Alnus serrulata)

Photos / Sounds

What

Aphids (Family Aphididae)

Observer

swampster

Date

April 21, 2024 06:59 PM EDT

Description

Host plant: Boxelder Maple (Acer negundo). Observation for the carpenter ants here.

  Box Elder (Acer negundo)

Photos / Sounds

What

Pug Moths (Genus Eupithecia)

Observer

hoptoit

Date

July 25, 2022 03:58 PM EDT
  Goutweed (Aegopodium podagraria)

Photos / Sounds

What

Pug Moths (Genus Eupithecia)

Observer

hoptoit

Date

July 22, 2022 02:43 PM EDT
  Common Yarrow (Achillea millefolium)

Photos / Sounds

What

Butterflies and Moths (Order Lepidoptera)

Observer

hoptoit

Date

June 23, 2023 02:30 PM EDT
  Goutweed (Aegopodium podagraria)

Photos / Sounds

What

Queen (Danaus gilippus)

Observer

patsykuentz

Date

April 19, 2024 10:37 PM CDT
  Bearded Swallow-Wort (Metastelma barbigerum)
  Sycamore Maple (Acer pseudoplatanus)

Photos / Sounds

What

Black-shouldered Shieldbug (Carpocoris purpureipennis)

Observer

fgallhuber

Date

August 10, 2023 04:43 PM CEST

Tags

  Wild Carrot (Daucus carota)

Photos / Sounds

Observer

fgallhuber

Date

July 8, 2022 07:01 PM CEST

Description

One of three animals I photographed at this location on the same day and time:

  1. https://www.inaturalist.org/observations/207748969
  2. https://www.inaturalist.org/observations/207749059

Tags

  Dark Mullein (Verbascum nigrum)

Photos / Sounds

What

Satyr Comma (Polygonia satyrus)

Observer

davideperry

Date

April 10, 2024 01:37 PM PDT

Description

Flitting around the stinging nettle patch in Stewart Wechsler’s wildflower meadow in Lincoln Park and sunning in various spots nearby.

In this first image with the butterfly hanging upside down you can see that she is bending her abdomen upward, touching it to the stem, as if to deposit an egg.

  Nettles (Genus Urtica)

Photos / Sounds

What

Gray Hooded Owlet (Cucullia florea)

Observer

osmeterium

Date

June 29, 2023 09:47 PM EDT

Description

Found 6/29/2023 on fleabane
Molted: 7/1, 7/5
Wandered: 7/10
Pupated: Between 7/13 and 7/17 (I was away)
Waiting for it to emerge this season. This is my best guess after comparing similar species.

Tags

  Fleabanes and Horseweeds (Genus Erigeron)

Photos / Sounds

What

Salt Marsh Moth (Estigmene acrea)

Observer

kathrynwells333

Date

April 19, 2024 06:20 PM CDT
  Carolina Crane's-Bill (Geranium carolinianum)

Photos / Sounds

What

Dowdy Pinion (Lithophane unimoda)

Observer

osmeterium

Date

June 21, 2023 11:26 AM EDT

Description

Found 6/19/2023 on black cherry
Molted: 6/20
Wandered: 6/27
Pupated: 8/21
An extremely long delay in pupation. The caterpillar looked ill/nearly dead for many weeks (see 6th photo).
Emerged: 9/30/2023

Tags

  Black Cherry (Prunus serotina)

Photos / Sounds

Observer

morganstickrod

Date

April 12, 2024 01:34 PM PDT
  Sonoma Ceanothus (Ceanothus sonomensis)

Photos / Sounds

What

Wavy-lined Emerald (Synchlora aerata)

Observer

jasondombroskie

Date

July 15, 2020 02:53 PM EDT
  Fleabanes and Horseweeds (Genus Erigeron)

Photos / Sounds

What

Common Sawflies (Family Tenthredinidae)

Observer

danastimpson

Date

August 20, 2023 02:17 PM EDT

Description

Feeding on the berries of Solomon's Plume (Maianthemum racemosum)

  Solomon's Plume (Maianthemum racemosum)

Photos / Sounds

What

Japanese Beetle (Popillia japonica)

Observer

agave6_tomwalker

Date

July 14, 2022 10:32 AM EDT
  Showy Tick-Trefoil (Desmodium canadense)

Photos / Sounds

Observer

beaatthenest

Description

Found on asparagus

  Wild Asparagus (Asparagus officinalis)
View more search options

Projects Using This Field

Butterfly & Moth Host Plants icon

Butterfly & Moth Host Plants

Photos of butterflies and moths with the host source identifiable and identified with the required 'Insect ...
ETCMN Caterpillars icon

ETCMN Caterpillars

Many moths and butterflies are dependent on certain plants for caterpillar host. The purpose of this proje...
Ash Interactions in North America icon

Ash Interactions in North America

Tracking ash as a host plant for insects, fungi and other organisms in North America.
 
San Carlos Native Plant Habitat Garden icon

San Carlos Native Plant Habitat Garden

Collect observations of fauna in the San Carlos Native Plant Habitat Garden, a UC Master Gardener project i...
Caterpillar and Sawfly Host Plants of the NE US icon

Caterpillar and Sawfly Host Plants of the NE US

The goal of this project is to record caterpillars (larvae of Lepidoptera butterflies and moths and Symphyt...

Comments

Would anyone object to this data field being merged with "Host Plant ID" (https://inaturalist.org/observation_fields/6586). Both are "taxon" type fields and really this field (Insect host plant ID) is just a more specific version of "Host Plant ID". Tagging some curators of projects currently using this field: @finatic, @greglasley, @microm, @trcarlisle, @leo_dapporto, @mattiamenchetti, @ciniale, @svania, @ilplataleo, @fabienpiednoir

Posted by mikeburrell almost 4 years ago

Definitely, for me you can go ahead, thanks @mikeburrell!

Posted by mattiamenchetti almost 4 years ago

Tagging a few more heavy users of this data field: @christine123 @mws @joebartok @crgillette @ansel_oommen @harumkoh @kens18 @fabienpiednoir @larry522 @spritelink @molanic

Does anyone object to merging this data field with "Host Plant ID" (https://inaturalist.org/observation_fields/6586). Both are "taxon" type fields and really this field (Insect host plant ID) is just a more specific version of "Host Plant ID". I don't think we would lose any functionality (you could query for insect records with a host plant ID field filled out).

Posted by mikeburrell almost 4 years ago

As long as all usage of this field gets converted into usage of host plant ID, I’m good with it. I see no difference in the meanings between the two fields

Posted by mws almost 4 years ago

Sincerely, I don't know. I've been used with "Insect Host Plant". Can't figure how this will affect data losses to switch to a different field.
I don't see eitheir any need to merge the two : if one is dissatisfied by this one, why then not simply drop it and use the other one ? What does this bring to merge the two ?

Posted by fabienpiednoir almost 4 years ago

By merging the two it makes it easier to search for host plant records. Right now, it could be buried in two different (but essentially the same) fields requiring at least two different queries. If the two get merged, anywhere that currently uses Insect Host Plant will be replaced by Host Plant (e.g. if a project currently uses insect host plant, it will become host plant). Generally, if there is not a need for two different fields (which so far no one has raised) then it is better to simplify and use a single field.

Posted by mikeburrell almost 4 years ago

I don't object to the merger!

Posted by ansel_oommen almost 4 years ago

"Insect Host Plant" was created first, and thus should be the one that is kept. A note was added to the "Host Plant ID" that it was a duplicate field and shouldn't have been created.

Posted by finatic almost 4 years ago

Fungi and mites can also have host plants. I think the more general one should be used

Posted by mws almost 4 years ago

And I still don't see why the two should be merged. Different needs, different ways. I don't see where is the problem. On the other hand, this seems t be many work and time for not that many use...

Posted by fabienpiednoir almost 4 years ago

I just want to clear this up - there's basically zero work involved for people here. You certainly would not have to change any records - merging the two fields would transfer the value from "insect host plant" to "host plant ID".

The only difference would be the name of the field. It will not change the actual data.

The problem we would be "fixing" is to consolidate the information. Here's an actual example: right now if I want to find records of the butterfly Danaus plexippus on Common Milkweed (Asclepias syriaca) I have to do at least two queries; one for records of Danaus plexipus with Insect Host Plant = Asclepias syriaca and one for records of Danaus plexippus with Host Plant ID = Asclepias syriaca because users might have used either observation field.

If we can merge these two data fields, all of the values in Insect Host Plant will be transferred into Host Plant ID, so a single query would return all of the results of the two above.

I hope that makes sense. It is to help improve how easy it is to find information in iNaturalist. The only actual work involved is we can't do the merge until there are no projects with "Insect Host Plant" as an observation field (there are four projects currently using Insect Host Plant) there is nothing anyone else needs to do.

Posted by mikeburrell almost 4 years ago

In the situation you're talking about, problem is actually that users used a field while there was already one for the same issue...
How would you prevent this to happen again, and people to create new similar fields ? Not to mention that fields can be designed for a peculiar purpose, and thenafter used in a different way...

An obs. can actually have various fields, even with the same value.
In the example above, If I want to work on Danaus on A. syriaca, I'll review D. plexippus obs., and add the field "Insect host plant" on the ones where it is missing. I know you will say that's a lot of work, maybe futile, but how could you, elsewhere, know every obs. is filled, and properly field ?

The problematic project has been deleted. So now feel free to do anything you're judging usefull and necessary. I expressed myself on this, and I have nothing to add.

Posted by fabienpiednoir almost 4 years ago

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