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

Information, 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


John van der Linden, Contributor
Biography:

*PAGE UNDER CONSTRUCTION*

First I'd like to introduce some of the insects I have spent time with in my work as a naturalist and citizen scientist.

Stem miners travel just beneath the epidermis (outer skin) of an herbaceous plant stem, leaving a visible feeding trail. Sometimes the trail is raised, like a molehill winding through a lawn or a vein bulging under human skin. Other times the stem epidermis does not lift or bulge much and the miner's trail is simply discolored relative to the ground color of the stem. Bark miners occupy the equivalent niche in woody stems.

Stem borers, like stem miners, may do some feeding right under the epidermis -- but their activities are not restricted to this region. Instead, they are often found deeper inside the stem, tunneling vertically through the ground tissue (such as the pith) and/or the vascular tissue. Sometimes nearly all of the stem interior is consumed, leaving little more than a flimsy collar of epidermis (at which point the plant may fall over!). More often, a stem borer's tunnel occupies only part of the stem in cross-section, and enough interior stem tissue remains for the plant to do its thing more or less normally. Affected stems sometimes discolor or swell, and borer larvae often drill holes in the epidermis through which they enter, exit, or expel frass. It is also common for there to be little or no external sign of a stem borer's presence. Here, I group stem borers by order and include genus names of hosts along with thumbnails. I also lump petiole borers in with the stem borers.

FLIES

Phlox: Verbena: Andropogon: Polymnia:

Parthenocissus: Elymus: Gentiana: Arnoglossum:

Xerophyllum: Hieracium: Veronica: Equisetum:

Prenanthes: Urtica (two species): Pedicularis:



MOTHS
Solidago: Hydrophyllum: Artemisia (two species): Lactuca:

Robinia: Zizia: Cirsium: Veronica:

Yucca: Ambrosia: Verbena: Lysichiton:

Scrophularia: Impatiens: Bidens: Nelumbo:

Juglans: Heracleum: Aesculus: Prunus (two species):

My Bugguide posts are not simply my own. Yes, they are a direct product of my own labor; but more fully and truthfully, they result also from all the contributions of others to my life and my work, through mentorship, inspiration, donated equipment (including, as of September 2018, my main camera and the computer on which I am writing), financial help, moral support, and more. Furthermore, the biophilic work of others presented freely online (and in some cases without copyright restrictions) via personal websites and blogs, the Biodiversity Heritage Library, open access journals, and other platforms has greatly enhanced my ability to do what I do and learn what I learn. It is my perspective and experience that, in restricting the flow of information, paywalls and even copyright terms sometimes compound already deeply entrenched, widespread disregard for our planet's miraculous diversity of life, especially invertebrates.

Considering all of these factors, I declare my Bugguide contributions to be non-copyrighted and offer them as such to you. In return, if you choose to make use of this material on your website, printed materials, etc., I ask that you follow these terms:

(1) Acknowledge me as the primary author/photographer
(2) Notify me
(3) When reasonably doable, share a copy of the work you've done that includes my work in it
(4) Represent and characterize my work honestly and truthfully in any derivative works of your own

Finally, in the unlikely event (hasn't happened yet) of any misrepresentations or mischaracterizations (accidental or otherwise), I ask that you be open to having a respectful, honest, level-headed, and compassionate discussion about it with me so that we may work together to clear up any harm done.

2764 images submitted by this contributor