We were walking by the river when we saw two 'dead' trees covered in this... I don't know kind of spider web (though I don't think is from a spider) and it had like really small black dots in it and then we notices also those yellowish worms (that I think they are caterpillars but I actually don't have a clue about insects) and we were wondering what was all this, thank you for the help in advance.
Kind regards, Camia:)