Larva inside green pepper plant stem (maybe thrip)

I think my green pepper plant in one of the Earth Box sets has contracted a mosaic virus. Several stems are dead and look like wood.

I was trimming back these stems and noticed they were hollow -- I kept trimming back to the end of the dead steam that meets the live part of the plant. I noticed what looks like a small worm or larva in the stem.

I wonder what this is? It looks like it could become a moth (or thrip)?