Autumn Argiopes

1 August 2019

The first records of Argiope aurantia (Yellow Garden Spider) and Argiope trifasciata (Banded Garden Spider) for 2019 are starting to pop up. Females of these species are some of the largest spiders in Minnesota. They are often found in open, sunny locations like prairies and grasslands (and gardens). The females sit in their large orb web during the day so they are easily seen and even a lousy cellphone picture can often be used to identify them definitively.

Can we establish the presence of this these two species in every county in Minnesota?

I'd like to make it the goal of this project and its members to try and establish those new county records from August until that killing frost we all know is coming. Take a look at the counties listed below. Maybe it's the county next door; maybe you'll be vacationing in that county in the coming month; maybe you're crazy enough to drive to Kittson County in the far northwest just to establish an Argiope county record (or maybe you know someone who is going birding there already who can take a picture of one of these beautiful spiders while they are there).

The following 50 37 counties have no records of Argiope aurantia:
Aitkin, Beltrami, Benton, Big Stone, Carlton, Cass, Chisago, Clearwater, Cook, Cottonwood, Crow Wing, Dodge, Douglas, Faribault, Fillmore, Grant, Houston, Hubbard, Itasca, Kanabec, Kandiyohi, Kittson, Koochiching, Lac Qui Parle, Lake, Lake of the Woods, Mahnomen, Marshall, Meeker, Mower, Murray, Nobles, Norman, Otter Tail, Pennington, Pine, Polk, Pope, Red Lake, Redwood, Roseau, St. Louis, Steele, Stevens, Swift, Traverse, Wadena, Waseca, Wilkin, and Wright.

The following 47 35 counties have no records of Argiope trifasciata:
Aitkin, Benton, Big Stone, Cass, Chippewa, Clearwater, Cook, Cottonwood, Crow Wing, Dodge, Fillmore, Freeborn, Goodhue, Houston, Hubbard, Itasca, Jackson, Kanabec, Kandiyohi, Kittson, Koochiching, Lake, Lake of the Woods, Lincoln, Mahnomen, Marshall, Martin, McLeod, Mille Lacs, Morrison, Mower, Murray, Nobles, Norman, Pennington, Pine, Pope, Red Lake, Roseau, Scott, Sibley, St. Louis, Steele, Swift, Todd, Wadena, and Wilkin.

I'll update this post as new county records get established. Happy spidering!

Lähettänyt cheins1 cheins1, 1. elokuuta 2019 16:48


@tigerbb has been amazing at curating these around the country too! :)

Lähettänyt sambiology noin 2 vuotta sitten (Lippu)

Great post! Thanks for the challenge! I'm on it! (but mostly I find them by accident)

Lähettänyt figaro noin 2 vuotta sitten (Lippu)

Mowing yesterday yellow garden spider got on my arm. Mower county

Lähettänyt jube2009 noin 2 vuotta sitten (Lippu)

I live on the border of Mille lacs and Crow Wing County. Moving into our new house across the street from Mille Lacs Lake and I have a very Large yellow and black spider on my siding

Lähettänyt branda9 noin 2 vuotta sitten (Lippu)

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