Pupil size abnormalities can sometimes signal disease. 1  Glaucoma: A mid-dilated pupil can be a sign of glaucoma.  Aneurysm: An aneurysm that pushes on certain blood vessels in the brain can cause a dilated pupil as well as other symptoms.
Quick Answer. The total lifespan of a lightning bug is anywhere from one to two years. However, the bulk of that lifespan is spent underground in the larval phase. Adult lightning bugs have very short life spans, averaging just two months in the wild. Continue Reading.
Lightning Bug. Lightning Bugs are in the beetle family. They are commonly called fireflies and are actually attempting to call a mate when they blink. The technical name for their blinking is bioluminescence.I think Iâd rather call it blinking, itâs easier to pronounce. Fireflies make what is called cold light.ightning Bugs are in the beetle family. They are commonly called fireflies and are actually attempting to call a mate when they blink. The technical name for their blinking is bioluminescence. I think Iâd rather call it blinking, itâs easier to pronounce.