While out raking leaves Sunday I noticed a concentration of acorns and stuffed my knit hat full so I could keep them in a container and see what insects might emerge. I was not expecting any to emerge right away but apparently that's what this larva did.

To be forthright, I'm not certain the larva came from the acorns because I had also brought in some mushrooms and some soil that I placed in the same area.

To learn which material the larva emerged from I placed samples of all three in a jar together with the larva. This morning I couldn't find the larva in the soil or the mushroom scraps so I pried the meat out of the acorn halves and there it was, nestled in a cavity it apparently made in the nut meat. I carefully replaced the grub and acorn meat and hope to see it mature.