Several hypotheses attempt to explain the origin of the term "Jerusalem cricket".
One suggests the term originated from a mixing of Navajo and Christian terminology, resulting from the strong connection Franciscan priests had with the Navajos in developing their dictionary and vocabulary.
Such priests may have heard the Navajos speak of a "skull insect" and took this as a reference to Calvary (also known as Skull Hill) outside Jerusalem near the place where Jesus was  crucified.

Several Navajo names refer to the insect's head:
c’ic’in lici (Tsiitsʼiin łichíʼí) "red-skull"
c’os bic’ic lici (Chʼosh bitsiitsʼiin łichíʼí) "red-skull bug"
c’ic’in lici’ I coh (Tsiitsʼiin łichíʼítsoh) "big red-skull"
wo se c’ini or rositsini or yo sic’ini (Wóó tsiitsʼiin/Yaaʼ tsiitsʼiiní) "skull insect"
Other names include the Hopi qalatötö ("shiny bug"), the Spanish niño de la tierra ("child of the earth") and cara de niño ("child's face").
Several hypotheses attempt to explain the origin of the term "Jerusalem cricket". One suggests the term originated from a mixing of Navajo and Christian terminology, resulting from the strong connection Franciscan priests had with the Navajos in developing their dictionary and vocabulary. Such priests may have heard the Navajos speak of a "skull insect" and took this as a reference to Calvary (also known as Skull Hill) outside Jerusalem near the place where Jesus was  crucified.
Several Navajo names refer to the insect's head:
c’ic’in lici (Tsiitsʼiin łichíʼí) "red-skull"
c’os bic’ic lici (Chʼosh bitsiitsʼiin łichíʼí) "red-skull bug"
c’ic’in lici’ I coh (Tsiitsʼiin łichíʼítsoh) "big red-skull"
wo se c’ini or rositsini or yo sic’ini (Wóó tsiitsʼiin/Yaaʼ tsiitsʼiiní) "skull insect"
Other names include the Hopi qalatötö ("shiny bug"), the Spanish niño de la tierra ("child of the earth") and cara de niño ("child's face").
Jerusalem cricket