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

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

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

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


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Unidentified Tracks, Sign, and Other Mysteries » Unidentified Signs on Twigs, Stems, and Stemlike Structures
Photo#1697907
White vervain stem borer
Copyright © 2019 MJ Hatfield

White vervain stem borer
Red Oak Prairie, Allamakee County, Iowa, USA
July 15, 2019
As often happens, I was looking at something else when I saw this, a continuous bulge along the stem of White vervain, Verbena urticifolia. It gets larger and more pronounced as it winds down the stem.

Images of this individual: tag all
White vervain stem borer White vervain stem borer White vervain stem borer, maybe
tag · login or register to post comments
Contributed by MJ Hatfield on 22 July, 2019 - 12:31pm
Last updated 23 July, 2019 - 9:21am

Maybe better called a borer...
but either way, I don't know what it is. John did rear a Melanagromyza from this host, but I don't think there was any external sign.
… Charley Eiseman, 23 July, 2019 - 8:42am 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 © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact