Firefly identification (Lampyridae)


Insect identifier · Often confused insects

How to identify a Firefly

Lampyridae
· Also called lightning bug

Firefly identification photo

People search “firefly” because it looks like something that bites. Firefly (Lampyridae) does not bite or sting people. Also called lightning bug.

The blink in the yard is not a biter.

What does a firefly look like?

Firefly is About 8–15 mm, soft. Colors: black, yellow, brown. Marks: Soft wing covers; Light-producing abdomen; Slow flight at dusk.

Firefly is About 8–15 mm, soft. Colors: black, yellow, brown. Marks: Soft wing covers; Light-producing abdomen; Slow flight at dusk.

Identification marks

  • Soft wing covers
  • Light-producing abdomen
  • Slow flight at dusk

Size: About 8–15 mm, soft
Colors: black, yellow, brown
Where: outdoor

Firefly vs Blister beetle

A flash at dusk = firefly. A soft gray beetle that blisters if crushed = blister beetle.

Range and season

Active early summer evenings. Places: yard, field. The flashing beetle. Does not bite or sting.

Lawns and field edges in early summer.

The flashing beetle. Does not bite or sting.

Early summer evenings

Common questions

Do lightning bugs bite?

No.

Related identification pages