From the Super Mario Wiki
The title of this article is official, but it comes from a non-English source. If an official name from an English source is found, the article should be moved to its appropriate title.
Kyotonbo are tall flying insects with huge eyes found in the Tree Zone of Super Mario Land 2: 6 Golden Coins. Kyotonbo simply fly in darting stop-start motions and home in on Mario. Kyotonbo were only featured in the first level of the Tree Zone. Mario could defeat them either by jumping on their heads or throwing a fireball at them.
Names in other languages
|A combination of kyotonto 「きょとんと」 meaning "blank stare" and tonbo 「トンボ」 meaning "dragonfly".