Identification

As you can see, the identification process is . . . stumping me.  If you know what any of the following are, I'd love to hear the answer!

#1.  This looks like some parasitic something, growing on the leaves of a tree in the woods. 

#2.  This one just makes me itch.  What's the caterpillar??? 

#3.  I think this is some kind of maple.  It is a sapling, so the bark isn't very helpful at this point. 

#4.  What kind of bee is on this common buttercup flower?

#5.  This pinecone was at the base of the tree you can see in the background.  I think it's a long leaf pine, but not sure.  The needles are probably 8 inches long, clustered at the end of the branch.

#6.  I think this is some kind of pea, but not sure.  

#7.  Boxelder beetle???  Otherwise, no idea.

Thanks for any expertise in identifying our finds for today!