{"id":8344,"date":"2019-03-18T14:55:52","date_gmt":"2019-03-18T18:55:52","guid":{"rendered":"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/?page_id=8344"},"modified":"2025-03-07T12:49:58","modified_gmt":"2025-03-07T17:49:58","slug":"monarch","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/","title":{"rendered":"Monarch Butterfly and Caterpillar"},"content":{"rendered":"<hr \/>\n<p><strong>Monarch News for Citizen Scientists:<\/strong> Check out the &#8220;App for Monarchs&#8221; (<a href=\"https:\/\/umaine.edu\/mainecoopunit\/monarch-model-validator\/\"><strong>Monarch Model Validation Project<\/strong><\/a>) that UMaine is involved with. It&#8217;s an application available for Apple or Android smartphones, as well as any device running Windows 10.<\/p>\n<hr \/>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 20%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-8344 gallery-columns-5 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillarEgg.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillarEgg-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Monarch caterpillar egg on a milkweed leaf\" aria-describedby=\"gallery-1-179\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillarEgg-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillarEgg-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-179'>\n\t\t\t\tEgg stage of a <a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/\">Monarch<\/a> (on host plant, milkweed) (eggs hatch after roughly four days)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/11\/Monarch-Caterpillar-Maine-080919.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"136\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/11\/Monarch-Caterpillar-Maine-080919-e1647017106696-150x136.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Small monarch caterpillar (1st-instar stage)\" aria-describedby=\"gallery-1-9920\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-9920'>\n\t\t\t\tMonarch caterpillar (1st-instar stage) (on host plant, milkweed) (August 9th, 2019; central Maine)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/11\/Monarch-Caterpillar-Maine-080919a.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"139\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/11\/Monarch-Caterpillar-Maine-080919a-e1647017137509-150x139.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Small monarch caterpillar (2nd instar stage)\" aria-describedby=\"gallery-1-9911\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-9911'>\n\t\t\t\tMonarch caterpillar (2nd-instar stage) (on host plant, milkweed) (August 9th, 2019; central Maine)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-Caterpillar-080919.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"141\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-Caterpillar-080919-e1647017001538-150x141.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"a Monarch Caterpillar - 4th instar or early 5th instar stage.\" aria-describedby=\"gallery-1-10204\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-10204'>\n\t\t\t\tMonarch caterpillar (4th-instar stage) (on host plant, milkweed) (August 9th, 2019; Warren, Maine)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillar.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillar-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"photo of a pair of mature Monarch caterpillars\" aria-describedby=\"gallery-1-178\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillar-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillar-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-178'>\n\t\t\t\tMonarch caterpillars (5th and final instar stage) (on host plant, milkweed)\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-Caterpillar-Mature-080919.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"138\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-Caterpillar-Mature-080919-e1647017074952-150x138.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A mature Monarch Caterpillar - Turner, ME (8\/9\/2019)\" aria-describedby=\"gallery-1-10202\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-10202'>\n\t\t\t\tA mature Monarch caterpillar (5th instar) &#8211; Warren, ME (8\/9\/2019) (on host plant, milkweed)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2025\/03\/Monarch-chrysalis-JFD.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2025\/03\/Monarch-chrysalis-JFD-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Photo of an earlier stage of a monarch butterfly&#039;s chrysalis when it&#039;s bright green in color.\" aria-describedby=\"gallery-1-14447\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2025\/03\/Monarch-chrysalis-JFD-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2025\/03\/Monarch-chrysalis-JFD-300x300.jpg 300w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2025\/03\/Monarch-chrysalis-JFD-400x400.jpg 400w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2025\/03\/Monarch-chrysalis-JFD-600x600.jpg 600w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2025\/03\/Monarch-chrysalis-JFD-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-14447'>\n\t\t\t\tA Monarch chrysalis (early stage)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-Chrysalis-082906.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-Chrysalis-082906-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Chrysalis stage of the Monarch (a few days from butterfly emergence)\" aria-describedby=\"gallery-1-10141\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-Chrysalis-082906-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-Chrysalis-082906-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-10141'>\n\t\t\t\tA Monarch chrysalis a few days away from butterfly emergence (8\/29\/2006)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchChrysalis.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchChrysalis-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Chrysalis stage of the Monarch (one that is close to emerging, plus an empty one where the butterfly already came out and left)\" aria-describedby=\"gallery-1-1510\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchChrysalis-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchChrysalis-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-1510'>\n\t\t\t\tA Monarch chrysalis in an advanced stage (final minutes before adult emergence)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchButterflyEmerged.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchButterflyEmerged-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A Monarch butterfly newly-emerged (Their wings are small at first but within a matter of minutes they slowly expand to full size as fluid from the body is pumped in)\" aria-describedby=\"gallery-1-1511\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchButterflyEmerged-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchButterflyEmerged-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-1511'>\n\t\t\t\tA <a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/\">Monarch butterfly<\/a> newly-emerged (Their wings are small at first but within a matter of minutes they slowly expand to full size as fluid from the body is pumped into the wings)\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchButterfly.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchButterfly-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"photo of a Monarch Butterfly resting on a rose\" aria-describedby=\"gallery-1-177\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchButterfly-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchButterfly-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-177'>\n\t\t\t\tA young Monarch butterfly resting on a rose (central Maine)\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchButterfly-male.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchButterfly-male-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"photo of a male Monarch Butterfly (males have a prominent dark spot on each hind wing; the spot is lacking on the female butterflies)\" aria-describedby=\"gallery-1-1509\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchButterfly-male-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2011\/04\/MonarchButterfly-male-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-1509'>\n\t\t\t\tA male Monarch butterfly (males have a prominent dark spot on each hind wing; the spot is lacking on the female butterflies) \n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-2018-Turner-Maine.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"131\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2020\/03\/Monarch-2018-Turner-Maine-e1659105212258-150x131.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A monarch butterfly resting and feeding on a clover flower in Turner, Maine, August 20th 2018\" aria-describedby=\"gallery-1-10138\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-10138'>\n\t\t\t\tMonarch Butterfly feeding on a red clover blossom; 8\/20\/2018. Turner, Maine.\n\t\t\t\t<\/dd><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<hr \/>\n<h3>Additional Information:<\/h3>\n<ul>\n<li><strong>UMaine News (<span class=\"date\">October 25, 2022<\/span>):<\/strong> <a href=\"https:\/\/umaine.edu\/news\/blog\/2022\/10\/25\/wesley-hutchins-studying-and-advocating-for-migrating-monarchs\/\"><strong>Wesley Hutchins: Studying and advocating for migrating monarchs<\/strong><\/a><\/li>\n<li><strong><a href=\"https:\/\/www.butterfliesandmoths.org\/species\/Danaus-plexippus\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Monarch<\/b><\/a><\/strong> (The Butterflies and Moths of North America Project)<\/li>\n<li><strong><a href=\"http:\/\/animals.nationalgeographic.com\/animals\/bugs\/monarch-butterfly\/\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Monarch Butterfly<\/b><\/a><\/strong> (National Geographic)<\/li>\n<li><strong><a href=\"http:\/\/naturemappingfoundation.org\/natmap\/facts\/monarch_k6.html\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Monarch Butterfly Facts<\/b><\/a><\/strong> (part of Washington State\u2019s <i>NatureMapping<\/i> Program)<\/li>\n<li>Genus of Tachinid flies known to parasitize monarch caterpillars: <a href=\"https:\/\/bugguide.net\/node\/view\/264987\" target=\"_blank\" rel=\"noopener\"><strong><em>Lespesia<\/em><\/strong><\/a> (BugGuide.net) [Example: <a href=\"https:\/\/bugguide.net\/node\/view\/1854575\" target=\"_blank\" rel=\"noopener\"><strong><em>Lespesia archippivora<\/em><\/strong><\/a>]<\/li>\n<\/ul>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>Monarch News for Citizen Scientists: Check out the &#8220;App for Monarchs&#8221; (Monarch Model Validation Project) that UMaine is involved with. It&#8217;s an application available for Apple or Android smartphones, as well as any device running Windows 10. Additional Information: UMaine News (October 25, 2022): Wesley Hutchins: Studying and advocating for migrating monarchs Monarch (The Butterflies [&hellip;]<\/p>\n","protected":false},"author":60,"featured_media":0,"parent":1561,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-8344","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Monarch Butterfly and Caterpillar - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Monarch Butterfly and Caterpillar - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Monarch News for Citizen Scientists: Check out the &#8220;App for Monarchs&#8221; (Monarch Model Validation Project) that UMaine is involved with. It&#8217;s an application available for Apple or Android smartphones, as well as any device running Windows 10. Additional Information: UMaine News (October 25, 2022): Wesley Hutchins: Studying and advocating for migrating monarchs Monarch (The Butterflies [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/\" \/>\n<meta property=\"og:site_name\" content=\"Home and Garden IPM from Cooperative Extension\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-07T17:49:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2010\/09\/MonarchCaterpillarEgg-150x150.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/\",\"url\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/\",\"name\":\"Monarch Butterfly and Caterpillar - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension\",\"isPartOf\":{\"@id\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/#website\"},\"datePublished\":\"2019-03-18T18:55:52+00:00\",\"dateModified\":\"2025-03-07T17:49:58+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/monarch\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Information \/ Fact Sheets\",\"item\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Alphabetical List of Critters\",\"item\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Monarch Butterfly and Caterpillar\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/#website\",\"url\":\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/\",\"name\":\"Home and Garden IPM from Cooperative Extension\",\"description\":\"Information you can use. 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