
Large Yellow Underwing Caterpillar
Plump, yellow caterpillar with brown dashes on its abdominal segments. It had a tan head capsule. It was 4-5cm long. This caterpillar was alive, but inactive...It was also much more squishy and unresponsive than most caterpillars, so I was thinking that it may have been affected by the cold temperatures, and possibly dying.

The large yellow underwing is a moth, the type species for the family Noctuidae. It is an abundant species throughout the Palearctic ecozone, one of the most common and most familiar moths of the region. In some years the species is highly migratory with large numbers appearing suddenly in marginal parts of the range.