lightning bug 
noun
North American term for firefly.I've thought that fire ants had killed off most of the lightning bugs like they have the horned toads....
- The favorite ‘hangouts’ of lightning bugs are east of the Rocky Mountains and away from city lights.
- This is a rare phenomenon in which the lightning bugs in an area flash in unison.
- hard ecu
- hard-edge
- hard-edged
- har de har
- Hardeian
- harden
- hardenability
- hardenable
- hardened
- hardened steel
- hardener
- hardening of the arteries
- hardening-on
- hardening skin
- harden something off
- Harderian gland
- hard error
- hard-faced
- hard facing
- hardfast
- hard-favored
- hard-favoured
- hard-featured
- hard feeling
- hard feelings