Invasive SpeciesJapanese beetle

Popillia japonica
FOUND by EmillyFlower
Farmington, Maine
ID Confirmed
Quality checked by Sandys
Peer reviewed by Sandys
Field Notes
What we assume to be an invasive Japanese Beetle, was found munching on a piece of a cat-tail plant on the edge of the Sandy River. The soil was more of a mud base, and the Japanese Beetle had eaten their way through most of the plant. The insect we found had that shiny green metallic quality that is found on the Japanese Beetle.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
The Beetles had black and white stripes on their abdomen.
Photo of my evidence.
The head is black, and the bodice is a bronzed green.
Photo of my evidence.
The beetles were demolishing the plants they were thriving off of. Each leaf on the on the plants where the beetles were abundant, there was an outsanding number of holes where the Japanese Beetles were feeding.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Popillia japonica
Common name:
Japanese beetle
Count of individuals: 
Between 1/4 and 1/2
Eggs (animals)
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 44.665440 °
W -70.153210 °
Observation Site Information
A photo of our study site.
Freshwater - By water's edge
Trip Information
Sandy River
Trip date: 
Wed, 2013-07-17 09:55
Town or city: 
Farmington, Maine
Type of investigation: 
Species and Habitat Survey
Upper Androscoggin
Habitat Observations
Species diversity: 
30 different species
Evidence of vectors: 
Dirt road
Walking trail
Recent disturbance
Tree canopy cover: 
Between 1/4 and 1/2
Soil moisture: 



That's an awesome sketch. You really captured the detail and structure of the Japanese beetle. It looks like, in your pictures, you found two beetles that are mating--that seems to be all they do over the summer! Nice find! Keep doing VS observations!

- Kansas