My cellar dirt wall has ahorizontal shiny saplike line near the bottom about 4 feet long. What is this?

Question

Is this some kind of pest infestation or is it something naturally occurring?

Answer 1

Have you gotten a sample of what the line is. Knowing whether it is sap-like or simply wet would be helpful. Also, is the line near the top or bottom of the wall? Usually you don't find a lot of home pests in the dirt. It could be something like slugs, but they would be more likely to crawl across the floor not the wall.

Answer 2

it could be snails crawling that's what they look like if it is look for the snails ,you may see them . if you have put some pellets down.