Translation

ha-madara-ka means "Anopheles" in English.

ha-madara-ka is normally written with katakana, as ハマダラカ.
ha-madara-ka written with hiragana is はまだらか.
ha-madara-ka written with kanji is 羽斑蚊.
These are jouyou kanji 常用漢字, taught in junior high, chuugakkou 中学校.
Romaji ha ma da ra ka
Hiraganaはまだらか
Katakanaハマダラカ
Kanji 羽 斑 蚊
Meaning Wing Spots Mosquito
School Level 小2 中 中

Trivia

  • Anopheles are known to transmit malaria, so they're also called mararia-ka マラリア蚊, "Malaria Mosquito."

Synonyms

Scientific name: Anopheles.

Further Reading

Wikipedia: ハマダラカ (Anopheles)