She knows you will take away her bug snacks and this is why she is dashing about catching and gobbling them down (at the last minute before her human spirits them away .... she probably thinks you are eating them .... naughty human).
BTW my lizards are all night owls, they love to watch TV (even have fav shows) and Rex loves her before bed snuggles. Lights out for my lizards at 10pm.