Character 蟸

蟸 is catalogued as a variant form of 蠡.

Shuowen Jiezi, an old Chinese character dictionary, explains 蠡 through insects that bore into wood. The dictionary Zihui also records 蟸 as a variant of 蠡. Later lexicons give the 蠡 family meanings for a gourd dipper and for shells or snails; Japanese dictionaries preserve those senses. These are historical dictionary meanings, so a bare 蟸 does not tell a modern reader which one is intended.