My favorite part of Summer. Lightning bugs make for the best natural fireworks show. I was thinking of doing a swamp walk at twilight to see if I can see a little show sometime when the opportunity is best. #cephoidea #bioluminescence (Not my photo, found at a public domain image search for #firefly ) https://instagr.am/p/CQEQuAwApqb/ via IFTTT Originally published at The Scotto Grotto (org) . You can comment here or there .