You see a lacewing moth
Notes
It can be tamed using a Turquoise Tendril Lantern.
Abilities
Energy Missile (?)Damage Taken From Elements
Physical 
Death 
Holy 
Ice
Fire
Energy
Earth
Location
Court of Summer at day.
Behaviour
The Lacewing Moth will follow and target other wild creatures, but will not be attacked by them. It's very weak and not a real threat.
A lacewing moth attacks in melee range.
Strategy
If your purpose is to tame it, clear the spawn around it (carefully not to kill the Lacewing Moth), and then just use the Turquoise Tendril Lantern on it (it will run most times). It's very easy to kill and will die before the other creatures it spawns with.