A proof-of-concept for the reconstruction of historical temperatures from museum collections a commonly-occurring saprophagous mite is recounted. Technological readiness level 3 (TRL3) and TRL4 stage-gates were passed multiplex bioassay ambient temperature using re-purposed laboratory data setal body sizes female Tyrophagus putrescentiae (Acaridae: Astigmata) individuals. Higher yielded smaller...