Fungus gnat identification (Sciaridae)


Insect identifier · Often confused insects

How to identify a Fungus gnat

Sciaridae
· Also called plant gnat, soil gnat

Fungus gnat identification photo

People search “fungus gnat” because it looks like something that bites. Fungus gnat (Sciaridae) does not bite or sting people. Also called plant gnat, soil gnat.

Gnats at the monstera are not mosquitoes.

What does a fungus gnat look like?

Fungus gnat is About 2–4 mm. Colors: black, gray. Marks: Tiny dark fly; Near houseplants; Weak flight; Larvae in soil.

Fungus gnat is About 2–4 mm. Colors: black, gray. Marks: Tiny dark fly; Near houseplants; Weak flight; Larvae in soil.

Identification marks

  • Tiny dark fly
  • Near houseplants
  • Weak flight
  • Larvae in soil

Size: About 2–4 mm
Colors: black, gray
Where: indoor

Fungus gnat vs Fruit fly

Houseplant = fungus gnat. Fruit bowl = fruit fly. Outdoor dusk bite = no-see-um.

Range and season

Active year-round indoors. Places: house, houseplant. Weak fliers from wet potting soil. They do not bite.

Overwatered houseplants.

Weak fliers from wet potting soil. They do not bite.

Year-round indoors

Common questions

Do fungus gnats bite?

No.

Related identification pages