A male of carrion beetle (Eusilpha japonica, family Silphidae) interfering with a mating pair to take over the female to mate with. The mateguarding male was wagging his tail in protest.
Captured at a communal latrine of Japanese raccoon dogs (Nyctereutes viverrinus, family Canidae) in the windbreaker forest of Japanese redcedar (Cryptomeria japonica, family Cupressaceae) in the sunny midafternoon (around 14:35 PM) of lateJuly 2023 in Japan.

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