Insect, Bug
The insect radical and insect are the same in looks as well as and meaning.
It's times like these when you gotta hope you're studying your radicals!
ちゅう, き
むし
None
It's an insect! Get it! You squish it with your foot - what sound does it make? A mush (むし) sound.
Imagine little words that say "mush" flying out from under your foot as you mush the poor thing. What does a "mush" sound sound like? You'll have to come up with something unique to yourself, and focus on it to remember this reading.