This past weekend I came across a caterpillar that I had never seen before. Its black, yellow, and white markings somehow made me think of the Pittsburgh Steelers NFL team that wears those same colors. For now, I am referring to it as the Steelers caterpillar, though, of course, it has a “real” name.
I’m having trouble identifying it—it may be a Smartweed caterpillar, also known as a Smeared Dagger caterpillar (who makes up these names?), although it seems to be lacking the red coloration in the hairs that I see in most photos. If anyone can make a positive identification, please let me know. Who knows, maybe the Steelers need a fuzzy new mascot?
© Michael Q. Powell. All rights reserved.

Was it drinking Iron City Beer?
Almost certainly, it’s the caterpillar’s preferred beverage.
Great title and stunning shot.
Thanks. I figured I’d get some Steelers fans to look at an insect with that title–they are really fanatical about their team.
I think the the Steelers name will stick. They should be proud.
That is one sharp photo, Mike. Nice work! Sorry I can’t help with the ID.
Thanks, Sue. Welcome back. It’s been really enjoyable sharing in your travel adventures. Don’t worry about the ID–I’m ok with using the name I made up.
Similar to the one you posted September 8th! Of course, with those uniforms they wore on Sunday, they are looking more and more like bugs.
They definitely were strange looking uniforms (here in Washington DC the newspapers commented that they looked like prison uniforms). As for bugs, the Steelers may have looked more like bugs, but they squashed the Redskins like bugs in that game.
Looked through my Caterpillars of Eastern N.A. It looks like a smartweed caterpillar (Acronicta oblinita). They’re highly variable and yours looks like one of the variations. Neat find.
Thanks so much for the assist in identification. It’s always tough for me to determine how close my subject needs to match the photos that I see, and the difficulty is magnified when I see words like, “They are highly variable.”
Caterpillars can be tricky, because instars can change as they grow. The book I mentioned is a good extensive one with LOTS of info.