The nights, too, are warm now, and that brings the promise of life at its swarming peak. The bugs now return in great numbers. Bugs are cold-blooded, so some remain inactive when it’s under 50 degrees. With the chill is gone from the air, all creatures are safe to come out.
Bugs tend to be unwelcome at human affairs, but there are a few for whom we make exceptions. The firefly is one of these special few. Who can resist the beauty of the lightning bugs floating on the mist of a sticky summer night?
Long before they emerge to light up your backyard, lightning bugs are doing good deeds. Firefly larvae–glowworms–are carnivorous, so they feed on the pests and grubs that would eat up our gardens. It’s been said that when they do emerge as adults, it’s safe to plant warm-weather crops. The fireflies know that the cold snaps are over.
Lightning bugs love the humid weather that St. Louis summers are so well-known for. The stickier the night, the more fireflies you’re likely to see. And after a wet spring like this one, they tend to come out on the early side. Some have already been out and about in the daylight, just crawling around and getting familiar with their new world. They ought to be arriving in numbers soon, here to set our backyards twinkling. Haven’t they been there for every summer you can remember? Something about it sets your heart beating. They are tiny miracles, little glowing bugs that embody, perhaps more than any other creature, that simple magic of summer.