Dragonfly (species)
From the Super Mario Wiki
Dragonflies are tall insects found in the Tree Zone of Super Mario Land 2: 6 Golden Coins. Dragonflies simply fly around in random directions, trying to impede Mario's progress. Fortunately, Dragonflies were only featured in the first level of the game, which is the tree base in the Tree Zone. Mario could defeat them either by jumping on their heads or shoot a fireball at them.

