Translation

hana-abu means "Hoverfly" or "Drone Fly" in English.

hana-abu is normally written with katakana, as ハナアブ.
hana-abu written with hiragana is はなあぶ.
hana-abu written with kanji is 花虻.
This word contains non-jouyou kanji 常用漢字.
Romaji ha na a bu
Hiragana
Katakana
Kanji
Meaning Flower Horse-Fly
School Level 小1

Synonyms

Scientific name: Syrphidae.

Further Reading

Wikipedia: ハナアブ (Hoverfly)