n. Any caterpillar which has the general appearance of a slug.
the GNU version of the Collaborative International Dictionary of English
n. Any caterpillar which has the general appearance of a slug, as do those of certain moths belonging to Limacodes and allied genera, and those of certain sawflies.
The Century Dictionary and Cyclopedia
n. One of the slimy slug-like larvæ of the saw-flies of the genus Selandria and allied genera; specifically, the larva of S. cerasi.