Subject: What kind of spider is this (if, indeed, it is a spider)
Geographic location of the bug: Northern Illinois
Time: 02:59 PM EDT
This critter has been hanging out on our back sliding door.
How you want your letter signed: Just curious…
Dear Just curious,
Based on this BugGuide image, we are quite confident you encountered a male Thick-Jawed Orbweaver in the genus Pachygnatha.