have you seen one of these?
attached is a odd bug we found out walking in Missouri, we have never seen one before, wondered if you knew what it is?
This was new to us, but we suspected some type of Aquatic Fly larva. Eric Eaton confirmed our suspicion: “Ok, I am pretty sure this is the larva of a soldier fly of some kind (family Stratiomyidae), and the "ovipositor" is actually a breathing tube. This thing should have been found in an aquatic, or at least very soggy, environment. In any event, it is most certainly a fly larva of some sort. Eric”