To dream of beetles represents thoughts and feelings of something in your waking life being compromised or ruined.
Negatively, a beetle may reflect lingering annoyances or bad memories of someone who totally disregarded your feelings. Long-term exposure to a memory of someone who made you feel like a loser.
Example: A man dreamed of seeing a beetle on his couch. In real life he had experienced his father throwing a sharp object at the couch ripping a hole in it.
Example 2: A woman dreamed of seeing someone eating . In waking life she felt forced to live in a dirty home with obnoxious neighbors who kept disturbing her sleep.