This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
蜅 combines 虫 (insect) with 甫, which likely contributes a phonetic element. The exact historical development is uncertain.
The insect radical 虫 suggests a bug-related meaning, but without a clear definition, picture a mysterious bug with the shape 甫 on its back.
For フ, imagine a bug making a soft 'fu' sound as it flies: fu -> フ.