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

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

Shamrock Spider - Araneus diadematus - female

Shamrock Spider - Araneus diadematus - Female
Town of Baileys Harbor, Hidden Corners Sanctuary, Door County, Wisconsin, USA
October 8, 1995
Adult hanging in vegetation along pond pathway. I think its a female.

Moved from Shamrock Spider.

Yes, looks like the female
but we would suggest Araneus diadematus instead. See what you think.

Spider ID
I checked with Steve Krauth, Curator at the UW-Madison Research Collection and he agrees with my ID. He sent me this URL: I'm also checking with Mike Draney, a spider expert out of UW-Green Bay.

The spider in your link is indeed A. trifolium
but unfortunately that's not the spider in your image. Araneus are notoriously difficult and variable spiders, but look at a dozen trifolium and another dozen diadematus, such as in the compilation John gathered for you below, and you will agree, we think, that your spider is diadematus. The next spider you posted was indeed a trifolium, an unusual all white form.

More google images

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