Friend or Foe?

I followed Christine Young’s advice and went back to the Western Rattlesnake Plantain to take some closer photos of the insect “residents”. There were many seemingly dead bodies of what appeared to be globular springtails and one very green caterpillar/worm. It has been very dry lately and the springtails dehydrate and die but I believe that this other inhabitant may be contributing to their demise. No ideas at all on what it is or what it will be “when it grows up”!