I saw yet another cool caterpillar to paint for my Perpetual Journal: a White-lined Sphinx moth larva! Check out those awesome colors & patterns! (The Fall foliage art is my PJ entry for Oct. 15-21 for last year.)
Since I've run into a few people who don't know what these are, this is one of the larval phases for the spotted lanternfly (Lycorma delicatula), which are invasive and destructive. Feel free to squish these.
OC Casing of unidentified trichoperan larva, southern Germany