27 October 1983.
México, Mexico
Locality: Cerro Jocotitlan between Toluca and San Juan del Rio, road up to the microwave station, 4 km N above the village of Jocotitlan.
Coordinates: 19.7167, -99.7833
(Map it)
Elevation: 2960m.
Environment description: Open woods under big Pinus and Quercus.