close up view of dead flesh fly on the floor

animal arthropod background bacteria beware biology brachycera bug closeup colour concept contagion creepy danger dangerous dead death detail die diptera dirty disease encephalitis entomology flesh fly germ healthcare horror house housefly hygiene illness infection insect invertebrate killed macquart macro nile oestroidea pathogen sarcophagidae science sickness small ugliness ugly unhygienic west wing