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 (Hidalgo) 2009

15–17 October, 2009:  Grant collaborator Oscar F. Francke, along with IBUNAM undergraduate student Tania Lopez Palafox, Instituto Tecnológico del Valle de Oaxaca undergraduate student Jesus Cruz, and IBUNAM graduate students, Carlos Santibañez, Alejandro Valdez, Ricardo Paredes traveled to the state of Hidalgo in search of Ixchela spiders, scorpions of the genera Diplocentrus (Diplocentridae) for Carlos’ research, and Megacormus (Euscorpiidae) for one of Francke’s projects.  Outside the Grutas de Tolantongo, a locality previously visited to collect Vaejovidae under REVSYS support, they collected two new species of Vaejovis,one belonging to the nitidulus group, the other to the mexicanus group.