This beautiful 15c stamp from Union Island, Grenadines of St. Vincent, features the butterfly Zerynthia rumina, also known as the Spanish Festoon. Issued as part of the “Leaders of the World – Leading Artists” series in the mid-1980s, it highlights the intricate artwork of Roger V. Vigurs, a renowned wildlife illustrator. The stamp captures the butterfly’s striking red, yellow, and black patterned wings against a delicate botanical backdrop. A fine collectible for both topical collectors of butterflies and those specializing in Caribbean philately, this issue reflects the rich biodiversity theme common in Union Island’s popular stamp programs.