What state has a canyon filled with glowing insects known as dismalites?

Alabama (In the United States Of America).

Explanation:

These insects are a rare one which are only found in Alabama State of the United States Of America. They are known for their brightly shinning blue-green lights which is used as a form of attracting their prey for feeding mechanism and mating. Its botanical name is 'orfelia fultoni'. They can be found it waterfalls and few other bridge ends.