Ammon News - A 14-year-old Brazilian boy died after injecting himself with butterfly remains — with police investigating whether it was part of a twisted online challenge, according to a report.

Davi Nunes Moreira started to vomit and then developed a limp after mixing a dead butterfly in water and injecting the liquid into his leg, according to the DailyMail.

The teen told his dad he hurt himself while playing — but then confessed what really happened when he continued growing sicker and was admitted to a hospital in Planalto, the report said.

His dad also found the syringe his son had used hidden under the boy’s pillow, according to the report. NYP