Viceroy Butterflies are really good mimics of monarchs, but they are slightly smaller. They too have white dots around the edges but they’re in a single row, and the hindwings have a solid black bar that crosses the lines from the thorax. Queen Butterflies look very similar to Monarchs from the underside, but the top side lacks that stained glass effect from the black bars; they’re barely visible at all. And Gulf Fritillaries are mostly orange on the top, with an orange thorax.