23 October 1983.
Puebla, Mexico
Locality: Tehuacan-Oaxaca road, turning at Coxcatlan towards Zoquitlan, 21 km along this road, La Griega, to where the road divides to Zoquitlan and Coyomeapa.
Coordinates: 18.3333, -97.1667
(Map it)
Elevation: 2660m.
Environment description: In a waste place on a slope down from the road to the fields and woods.