En Río Ameca, localidad de Jesús María, mpio. Amatlán de Cañas, Nayarit.
Hypsiglena torquata, commonly known as the night snake, is a species of rear-fanged, colubrid. It is found throughout the southwestern and western United States, as well as in Mexico and British Columbia, Canada. The number of subspecies varies depending on the source, but it is generally accepted that there are 17.