Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa
TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Butterflies and Skippers (Papilionoidea) » Brush-footed Butterflies (Nymphalidae) » Crescents, Checkerspots, Anglewings, etc. (Nymphalinae) » Nymphalini » Tortoiseshells (Aglais) » Milbert's Tortoiseshell - Hodges#4433 (Aglais milberti)
Photo#311980
Black spiny caterpillars with lateral yellow stripe - Aglais milberti
Copyright © 2009 David Cappaert

Black spiny caterpillars with lateral yellow stripe - Aglais milberti
Crawford County, Michigan, USA
July 22, 2009
Gregarious caterpillars, appeared to be associated with several herbaceous plants on a stream bank.
tag · login or register to post comments
Contributed by David Cappaert on 29 July, 2009 - 3:47pm
Last updated 26 August, 2009 - 11:00am

Moved
Moved from ID Request.
… Nina, 26 August, 2009 - 11:00am login or register to post comments

Miltbert's Tortiseshell
This is an exact match to Aglais milberti, aka Milbert's Tortiseshell in my copy of Wagner's "Caterpillars of Eastern North America"-p. 116. Location is perfect, as it's stated to reside in "wetlands, watercourses, fields and meadows, weed lots, pastures and other open habitats" with common food plants listed as nettle. Caterpillars feed in dense groups from the top of the plant down, which appears consistent with your photo.
… Nina, 26 August, 2009 - 11:00am login or register to post comments

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2021 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact