In a small glass bowl, combine the shrimp, chile, parsley, and lime juice. Add a pinch each of salt and pepper and toss together. Cover with plastic wrap and refrigerate until ready to serve.
In a large heavy saucepan heat the oil over medium heat. Add the onion and cook, stirring occasionally, for 4 to 5 minutes, or until softened and slightly golden. Add the corn and cook for 2 minutes more. Add the milk and heat to just under simmering. Transfer the mixture to a blender and add the bread, 1 teaspoon salt, and 1/2 teaspoon pepper. In batches if necessary, blend for 2 to 3 minutes, until you have a smooth puree, scraping down the sides of the container as necessary. Transfer to a large saucepan and stir to blend all the ingredients evenly. Over medium heat, bring to a boil. Remove from the heat and ladle into warm soup bowls. Garnish each bowl with a mound of the shrimp salsa.