2009:
Queretaro
Hidalgo
Sonora
Guerrero

2008:
New Mexico
Arizona
Michoacan, Guerrero
Texas, New Mexico
California
Arizona, New Mexico
Baja California peninsula/islands
Arizona California New Mexico
Mississippi Louisiana
Arizona Nevada
Guerrero
Colima

2007:
Arizona New Mexico
Arizona
Arizona California New Mexico
Nevada
New Mexico Texas
Jalisco
Arizona Utah
Arizona New Mexico Texas
Morelos Guanajuato
Oaxaca Guerrero
Guerrero
Utah
Michoacan

2006:
Chiapas
California Nevada
Nuevo Leon San Luis Potosi Tamaulipas
Coahuila
Chihuahua Sonora
Oaxaca
Arizona New Mexico
Pacific Coast of Mexico
Veracruz
San Luis Potosí, Hidalgo, Querétaro
Michoacan, Guanajuato

2005:
Oaxaca
Pueblo, Oaxaca
California, Nevada
Veracruz, Chiapas
Durango, Chihuahua
México, Nayarit, Jalisco, Colima
Michoacan, Aguascalientes, Zacatecas, Jalisco, Colima
Sonora,Baja California, Baja California Sur
Chiapas (II)
Chiapas (I)

2004:
Puebla, Oaxaca, Chiapas, Tabasco
Tamaulipas, San Luis Potosí, Veracruz, Puebla, Oaxaca
southern California
Baja California Sur
Arizona, New México, Baja California, Baja California Sur

2002:
Arizona, New México
D.F., Puebla, Veracruz, Oaxaca, Edo. México, San Luis Potosí, Tamaulipas, Hidalgo

Mexico (Chihuahua, Sonora) 2006

21 June–4 July, 2006: Funded by the NSF REVSYS grant. Edmundo González and Pablo Berea traveled ca. 4,000 km through the deserts of central and western Sonora, and along the Sierra Madre Occidental, crossing the mountains into Chihuahua, close to the boundary between the two states. Collections were made in diverse habitats including Sonoran desert, pine-oak forest, and tropical deciduous forest, at elevations from 30–2,200 m. More than 350 scorpions, representing 16 species, seven genera and five families, as well as 50 solifuges, amblypygids, uropygids and myriapods, were collected. Highlights of the trip included Vaejovis pequeno, collected in several habitats, including desert, tropical deciduous forest and oak forest; V. mauryi; three species of Serradigitus; and at least two species of Diplocentrus that may represent new records of described species. Several unusual Centruroides were also collected that may represent new species.