Fall-bugs.
Fall-bugs begin to chirp six weeks before a frost in the fall.
Fire-flies.
Fire flies in great numbers indicate fair weather.
Garden Spiders.
If the garden spiders break and destroy their webs and creep away, expect continued rain.
Glow-worms.
Before rain:
Glow-worms numerous, clear, and bright,
Illuminate the dewy hills at night.