The New Mexico State Collection of Arthropods is located at New Mexico State University in Las Cruces, NM. It currently houses approximately 150,000 arthropod specimens as well as the Merrill Sweet Collection (350,000 specimens). The NMSU Collection primarily is composed of arthropods from the western United States, with an emphasis on the arachnids of the arid Southwest. The goals of the collection include survey of the arthropod fauna of New Mexico and the Southwest, providing reference material for researchers, and providing outreach to our constituents in the state and abroad.