Jeff might have nailed it (soldierfly?) Because if it is moth larva (waxworms) then you have to figure out how the baby moths got in the bag in the first place. But a larva from a beetle or bug like the soldierfly makes more sense to crawl in there.

There is a huge thread on soldierflys on pond boss. Go to page 30 to see some of the larva in the pictures.

Soldierfly project on Pondboss

A picture from page 1 of the thread:




Last edited by canyoncreek; 10/28/15 08:48 PM.