Crossword clues for the word: DEERFLY The word DEERFLY has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for DEERFLY Showing 1 to 6 of 6 results Clue(s) Bloodsucking pest Country pest Hazardous insect Insect with mottled wings. Wetland bloodsucker Winged bloodsucker