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| Invertebrates in Douglas-Fir National Monument |
All flying insects are in global decline, due to pesticide use, habitat loss, and climate change. Insecticides are a leading cause of butterfly decline in many regions of the U.S. |
Clodius parnassian butterfly
Photo: Tanya Harvey |
California tortoiseshell butterfly
Photo: John Cox In 2025 this beautiful butterfly emerged in large numbers in the Oregon Cascades |
Polyphemus moth
Photo: Wikipedia |
Pale swallowtail butterfly
Photo: Tara Lemezis |
Robust lancetooth snail
Photo: Wild Columbia |
Leapord slug
Photo: plantsam |
Two-striped grasshopper
Photo: Scott/BirdWatchingHQ |
Western pondhawk dragonfly
Photo: EverydayEarth |
Two-spotted lady beetle
Photo: Tualatin Hills Nature Park |
Rugose stag beetle
Photo: River Ritcey/The Spokesman-Review |
Yellow spotted millipede
Photo: Steve Danley |
Assassin bug
Photo: Douglas William Wolfe |
Forest bumblebee
Photo: Bumblebees of Washington State |
Cicada killer wasp
Photo: Purdue University |
Yellow garden spider
Photo: JK Barnes |
Western Black carpenter ant
Photo: Scott/BirdWatchingHQ |
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