I am a fish/wildlife biologist working in Portland; I am unsure if cicadas are technically considered an invasive species, but I am pretty certain NW Oregon is outside of their known range. Please advise if this is not the correct department to report this observation or if cicadas are indeed native to this area. Thank you!

Reporter
July 28, 2009, 9:09 a.m.

Hi Sage, thank you for your report. According to an individual that studied cicadas in New Mexico, cicadas are found in Oregon, however, they are smaller, emerge in lower densities, and are not as loud as cicadas from other parts of the country. This individual found a population of them in Hillsboro. They are not considered an invasive species. Okanagana is the most common genus of Cicada found in Oregon, and is found near the Portland metro area (Estacada, etc.).

Periodical cicadas - those that hatch every 13-17 years (genus Magicicada) are not found in your area.They are more common in the Midwest, eastern United States, and southern United States.

Thanks for your report!

Lisa DeBruyckere
July 29, 2009, 1:59 p.m.