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Welcome to the Oregon State Arthropod Collection the largest entomological research collection in the Pacific Northwest. Our history extends back into the early years of the Oregon State College (1860's/1870's). Since then, we've continued to grow and support entomological research and teaching at OSU and the entire region.

Today, we are a research collection of nearly 3 million specimens representing insects and other arthropod species from around the world.

Thank you for visiting our website, we hope you will find the information and resources here helpful. If you have any comments or suggestions for the website, please let us know.

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