大水蟻 [－－蚁]

Jyutping daai6 seoi2 ngai5
Pinyin dà shuǐ yǐ

Definitions (Wiktionary)
  1. noun, Hakka, Hokkien
    winged ant (usually appears before strong rain)
    (syn.) 水蚁, 大水蝶仔, 大水蝶, 水蟻