Springtail look-a-likes eating young leaves, new growths

[whygreenberg]

Hello there!! Been a while since I've been around the OB, but am currently stumped and hope I can get some help/advice.

Something is munching on the young leaves that some of my plants are currently growing, mostly thinner leaved genera (a few Dendrobiums, a Phal, and Sedirea). I can see these little guys, mostly hiding down in where the new leaves come out, and they look all the world to me like springtails. (They are also way to small for me to photograph.) Now, I was always under the impression that springtails don't really munch on the plants, and mostly content themselves to cleaning up algae growth, etc. But these little guys are *definitely* munching and or sucking on the leaves.

I have been doing my usual regimen of spraying the affected plants with a soap + rubbing alcohol solution, a few times a week. And it's been a few weeks now and these little nasties are not going away.

SO. Any advice on next steps, and particularly thoughts on what these little crawlers may be, (or if I'm wrong that springtails won't eat the leaves), would be much appreciated.