Cool. When it gets old enough or runs out of food it will leave. Enjoy it while you can.
Cool! Preying Manti are some of the neatest insects to watch...they're so human-like, in an odd way, with that articulated head and arms. That's good luck imo, having those around...they're voracious for the "bad guys".
And - you probably have aphids!
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What is 42?
And your question is...?