09 September 1983.
Querétaro, Mexico
Locality: Mexico-Queretaro Hwy 57 near km 154, between Puerta de Palmillas and San Juan del Rio.
Coordinates: 20.3167, -99.9167
(Map it)
Elevation: 2130m.
Environment description: Flat topography, black soil; chaparral type vegetation among huisache bushes next to the corn field; area dry.