Tlahuelpuchi

Unlike witches who choose evil by their own will, this Mexican woman is born with a condition she never asked for: she must feed on the blood of infants, or fall gravely ill. It is an inherited curse, passed from woman to woman within the same family. Entire communities in Tlaxcala developed specific child-protection rituals, metal crosses and garlic in cribs, against a threat seen more as hereditary tragedy than pure evil.

A woman born with the supernatural condition of transforming at night into a flying creature (often as lights or an animal), compelled by biological need to feed on the blood of infants, under penalty of becoming gravely ill if she does not.

Within the folk and mythological corpus compiled by the Codex Monstrorum, the creature Tlahuelpuchi occupies a distinctive role in the symbolic imagination of its culture of origin. Its mythos articulates primal human anxieties, the mystery of untamed wilderness, and social norms preserved through the lens of bestiary literature.

Unlike witches who choose evil, the tlahuelpuchi is seen as a victim of her own inherited nature (usually transmitted through the female family line); Tlaxcala communities developed specific infant-protection rituals, such as metal crosses and garlic in cribs.

Nutini documented real historical cases of women accused of being tlahuelpuchi being expelled or even killed by their communities after unexplained infant deaths — a rare case of vampiric witchcraft belief with social consequences documented in modern ethnography.

First appearance and primary records: A vampiric witch from the Nahuatl folklore of the Tlaxcala region, central Mexico, documented in modern anthropological studies (notably by Hugo Nutini, an anthropologist who researched the community extensively in the 1960s–80s).

Oral transmissions and preserved manuscripts indicate that legends surrounding Tlahuelpuchi underwent substantive evolution over successive centuries. From archaic oral traditions to classical and medieval written records, each period reframed the creature according to its own ethical and cosmological paradigms.

Normal human appearance by day; at night, she transforms into animal form (turkey, vulture) or a ball of light that flies silently until finding an unprotected infant victim.

It explained sudden, unexplained infant deaths (possibly sudden infant death syndrome, not understood at the time) and organized community practices of protection and, historically, social punishment.

It compares to the European figure of child-devouring vampiric witches (like the Greek lamia or Slavic Baba Yaga in her dark facet), but stands apart for its documented ethnographic emphasis on involuntary hereditary condition, not moral choice.

Studied as a classic case in Latin American witchcraft anthropology; it remains present in Tlaxcala's oral folklore, though with less media visibility than other, more nationally widespread Mexican cryptids.