caterpillar - Nymphalidae?

caterpillar - Nymphalidae?

Observation - caterpillar - Nymphalidae?. Description: Around 2-3 cm long, found on a grassy roadside with Yarrow and other low herbs, and under Hawthorn. Seems to be a pretty close match to some of the fritillaries in some of the details, but just doesn't match anything I've seen overall. I'm sure it's Lepid

Around 2-3 cm long, found on a grassy roadside with Yarrow and other low herbs, and under Hawthorn. Seems to be a pretty close match to some of the fritillaries in some of the details, but just doesn't match anything I've seen overall. I'm sure it's Lepidoptera, though - despite being convinced it was a sawfly when I first saw it...