Answer:

gnats

Answer	Crossword Clue
GNATS	Airborne pests
GNATS	Pesty biters
GNATS	No-see-ums

GNATS	Summer swarm
GNATS	Swattable pests
GNATS	Annoying swarm
GNATS	Miniature biters
GNATS	Irritants in a cloud
GNATS	Insects that form "ghosts" when they swarm
GNATS	Punkies
GNATS	Little pests

GNATS	Relatives of crane flies
GNATS	Tiny biters
GNATS	Pesky swarm
GNATS	Swarming pests
GNATS	Tiny flying biters
GNATS	Airborne annoyances
GNATS	Pesky fliers
GNATS	Flying annoyances

GNATS	Black flies
GNATS	Bugs that bug
GNATS	Little biters
GNATS	Little buggers
GNATS	Flying nuisances at dusk
GNATS	Pesky flyers
GNATS	Bothersome pests
GNATS	Pesky insects

GNATS	Camping menaces
GNATS	Pesky bugs
GNATS	Small flies
GNATS	Tiny bugs
GNATS	Annoying insects
GNATS	Biting insects
GNATS	Pesky flies
GNATS	Small pests

GNATS	Pesky flying insects
GNATS	Tiny flies
GNATS	Mushroom pests
GNATS	Small biting flies
GNATS	Annoying buzzers