23 August 1993.
Querétaro, Mexico
Locality: Foot hills of "El Buey" mountains of Queretaro-San Luis Potosi and Mexico city-San Luis Potosi roads junction.
Coordinates: 20.8000, -100.4333
(Map it)
Elevation: 2050m.
Environment description: Mesquite-grassland with Myrtilocactus sp., Opuntia sp., Acacia sp., and Karwinskia sp. Growing along cornfields.
Collector(s):