Why has my praying mantis got black arms and gone limp...she's also pushing food away?

Your praying mantis may be experiencing stress, illness, or even the onset of death. Black arms can indicate a lack of hydration or a serious health issue, while pushing food away may suggest she is not feeling well or is nearing the end of her life. It's important to check her habitat for proper temperature, humidity, and food availability. If her condition worsens, consider consulting an expert on insect care.