Even before the advent of the California Insect Survey project in 1939, the UC Berkeley entomology department engaged in field expeditions (like the Fort Seward trip in 1936, above). The Essig Museum has revived this tradition in recent years, to include faculty, staff, students, volunteers, and other arthropod enthusiasts.
- 1956-1991: California Insect Survey “Spring Trips”
- 2000: Santa Cruz Island, Santa Barbara County
- 2002: Hauser Canyon, Cleveland Natl. Forest, and Algodones Dunes
- 2003: UC Angelo Coast Range Reserve, Mendocino County
- 2004: UC Blodgett Forest Research Station, El Dorado County
- 2005: UC Burns Piñon Ridge Reserve, San Bernardino County
- 2006: UC Sedgwick Reserve, Santa Barbara County
- 2007: Warner Mountains, Modoc County
- 2008: Six Rivers National Forest, Del Norte County
- 2010: Inyo National Forest, Inyo County
- 2011: Boyd Deep Canyon Reserve, Riverside County
- 2013: Davis Camp, Sequoia National Forest, Kern County
- 2014: Sagehen Creek Reserve, Nevada County
- 2016: Los Padres National Forest
