05 September 1983.
Hidalgo, Mexico
Locality: North of Ixmiquilpan, 18 km N of Nequeteje, between El Defay and Agua Florida.
Coordinates: 20.4833, -99.2333
(Map it)
Elevation: 2630m.
Environment description: Mountainous oak forest; open vegetation on forest floor, steep slope, very dry, soil black with oak leaf litter.