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

U.S.A. (Arizona, New Mexico) 2006

16–23 June, 2006): funded by the NSF REVSYS grant. Randy Mercurio and Warren Savary traveled to Phoenix, where they presented talks (including an overview of the REVSYS project) to the American Tarantula Society.  After collecting in the Bradshaw Mountains in Yavapai County, they traveled north and east, collecting in Coconino County, Arizona and Carson County, New Mexico, then headed south to sample the “sky islands” of southeastern Arizona (mountain ranges in Pima, Santa Cruz, and Cochise counties).  Several undescribed species, were collected. Other significant species collected included Uroctonites huachuca and Serradigitus allredi.