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 (Oaxaca, Guerrero) 2007

14–20 June, 2007; 17–23 July, 2007; 4–11 June, 2008; 27 June–5 July, 2008: Funded by IBUNAM and BIOCLON.Four trips were undertaken by IBUNAM graduate student Carlos Santibañez to the states of Oaxaca and neighboring Guerrero, as the scorpion fauna of that region is the subject of Santibañez’s thesis. The June 2007 trip also involved IBUNAM graduate student Alejandro Valdez, the July 2007 trip involved collaborator Oscar Francke and IBUNAM graduate students Valdez, Hector Montaño, and Jesus Ballesteros, the June 2008 trip involved Francke, Valdez, Montaño and Ricardo Botero (a graduate student from Bogota, Colombia), and the June–July 2008 trip involved Francke and graduate student Ana Quijano (Universidad Michoacana de San Nicolás de Hidalgo). Thus far eight species of Vaejovis, five of which are undescribed, have been collected in the area, as well as new species of Centruroides (Buthidae) and Diplocentrus (Diplocentridae).