The colonies sampled were located in the municipalities of Tabasco, Jalpa, Juchipila and Moyahua at altitudes between 1000 and 1400 m above sea level.
Las colonias muestreadas estaban ubicadas en los municipios de Tabasco, Jalpa, Juchipila y Moyahua, a altitudes entre 1000 y 1400 m sobre nivel del mar.