FREQUENCY: Very rare ([Dungeon Level I])
FREQUENCY: Very rare ([Cold Civilized Forest])
FREQUENCY: Very rare ([Cold Wilderness Forest])
FREQUENCY: Very rare ([Temperate Civilized Forest])
FREQUENCY: Very rare ([Temperate Wilderness Forest])
FREQUENCY: Very rare ([Tropical Civilized Forest])
FREQUENCY: Very rare ([Tropical Wilderness Forest])

NO. APPEARING: 1-4
ARMOR CLASS: 9
MOVE: 1"
HIT DICE: 1 HP
% IN LAIR: 90%
TREASURE TYPE: Nil
NO. OF ATTACKS: 1 (Burrowing into ear to brain) ~ 20
DAMAGE/ATTACK: Within 4-24 hours: 90% chance of death
SPECIAL ATTACKS: nil
SPECIAL DEFENSES: nil
INTELLIGENCE: Non-
ALIGNMENT: Neutral
SIZE: S (about 1/2” long)
LEVEL/X.P. VALUE: nil

Ear seekers are small insectoids which are found in wood. They live by
eating dead cellulose, but they need warm places in which to lay their
eggs, and they favor places like ears.

Burrow: If this creature enters a warm place, it will always lay 9-16 tiny eggs and then crawl out to die.
When the eggs hatch (4-24 hours) the larvae eat the surrounding flesh, generally
burrowing inwards to where the most food and body heat is, killing their
host 90% of the time. A cure disease spell will destroy the eggs. <add to parasitic infestation table in the DMG?>

Quote:
Originally posted by MerricB
O Great Gygax, who we implore not to let the earseekers infest our helmets - or our ears...
 

Until the wretches conceived of ear trumpets,
those marvelous little grubs surely did stop all that vile listening with ears pressed to doors so as to avoid nasty surprises the DMs wished to spring on the PCs.