It's harder than I thought to identify exactly what kind of grasshoppers these are. There are a lot of grasshoppers out there.
Who knew?
Turns out they are Differential Grasshoppers [Melanoplus differentialis]. You can tell because of the yellow legs and the black chevrons on the upper leg. Very distinctive.
I thought these guys were engaged in a little adult activity, but it turns out they were multitasking.
They were eating my lemon tree.
I chased them off and told them to go get a room. Geez.
Click the pics for a closer view of these lemon leaves. They're pretty cool.