I think the two pine shoot beetles are the Common Pine Shoot Beetle and the European Spruce Bark Beetle. How do you tell the difference between the Asian Long-Horned Beetle and the Citrus Long-Horned Beetle?AlsoThis is going by the Nationals list:It's mostly similar-looking generic (yeah, I went there) grasses, maybe the beetles. I don't have my comparison documents on hand to see what else, but there were probably some larval stages of insects that got lumped together, at least for quick on-the-spot comparison.
- the two pine shoot beetles
- the two longhorned beetles
- the two mussels
- giant vs common reed
- the milfoils
On the Pennsylvania list:
- the honeysuckles.......
- the knotweeds
If you are making an ID guide, make it like a dichotomous key, have all the warm-colored flowers on one page, all the pointy leaves on another page, etc.
-whitetop, hairy whitetop, giant hogweed
-some of the thistles look pretty similar
What two pine shoot beetles? As far as I know there is only the common pine shoot beetle (national list). Are you talking about the spruce bark beetle by any chance?