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 (Baja California, Baja California Sur, and associated islands)2008

26 May–15 July, 2008: Funded by the NSF REVSYS grant, the Global Survey and Inventory of Solifugae grant and a grant from the Theodore Roosevelt Memorial Fund (AMNH). Graduate students Edmundo González (AMNH) and Hector Montaño (IBUNAM) traveled 3,258 km through the deserts of the Baja California Peninsula and San Benito Island on the Pacific coast. González and Irma G. Nieto, a graduate student from Centro de Investigaciones del Noreste (CIBNOR), La Paz, Baja California Sur, collected on five islands in the Sea of Cortez. Approximately 3,000 scorpions, solifuges, amplypygids and spiders were collected, representing approximately 50 species, 12 genera and five families. Highlights of the trip include possible undescribed species in the genera Paruroctonus, Paravaejovis and Vaejovis. Fresh samples of 10 species for the DNA sequencing part of the project were obtained, including five species endemic to the following islands: Cerralvo, Danzante, Espiritu Santo, San Benito, Santa Cruz. González also studied the collection of scorpions housed at the CIBNOR during the period 15–24 June, where he found large series of rare species such Syntropis macrura, Vaejovis pattersoni and the first female specimen ofPseudouroctonus lindsayi.