Department of Integrative Biology

The OSAC is a research collection of nearly 3 million arthropod specimens that is housed and managed by the Zoology Department in Cordley Hall. With a history dating back to the 1800's the collection is the largest natural history collection of entomological material in the Pacific Northwest and the largest repository for insect species found here, anywhere in the world. Regional, national and international scholars rely on access to the specimens housed in the OSAC to conduct their evolutionary, taxonomic or conservation research. We are also an invaluable resource to aid ecologists and plant/crop pathologists in confirming insect identifications.