The noctuid moth Ascalapha odorata bears the common name “Black Witch”. It is considered an omen of death in Mexican and Caribbean folklore. In Mexico, it is known as “Mariposa de la muerte”.
"The jewel contains electric terminals so that, when connected to a battery concealed in the wearer’s pocket, the eyes roll and the jaws snap." (from the V&A description)
Vintage 1970 MUSHROOMS Art Print Original by NaturalistCollection