WSU Tree Fruit Research & Extension Center

Pear Entomology

Monday, March 25, 2019


Biota of Washington State 

A photographic archive of Washington's biodiversity

All photos by Arlo Pelegrin. Whenever possible, specimens have been kept alive and then released afterwards.


With its wide range of climatic zones, Washington supports a vast number of insect species.

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Spiders, scorpions, ticks, mites, and harvestmen

Cheliceræ, pedipalps, and eight legs.

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Most of Washington's crustaceans are confined to marine or littoral habitats, although some isopods live inland as far as the Idaho border.

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The Puget Sound intertide is one of the richest zones on the planet, with numerous phyla represented.

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In addition to native species, Washington is home to a large number of colonial plants that have taken root and clearly intend to stay.

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The diversity of Washington fungus is the stuff of legend. The diversity of fungal pictures on this site is sublegendary.

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