飞蛾投火

Explanation: Like moths to flame the same. Metaphor of their own dead end, self-defeating. 　　Usage: Verb-object type; as predicate, adverbial, attributive; containing derogatory 　　Source: "Liang Shu to irrigate Biography": "If the moths go to the fire, flames of Qi can be stingy." 　　Examples: Otherwise, enter his house, as ~ generally, does not pit you on the next high, then too late. (Minglan Ling Xiao Xiao Sheng, "Jin Ping Mei" Seventeenth back) Thesaurus:  Tiger-moth Firefighting, Moths Of fire