About Heliconius cydno (Doubleday)
Heliconius cydno, commonly known as the cydno longwing, is a nymphalid butterfly that belongs to the Heliconiinae subfamily found in Central and South America. This species ranges from southern Mexico to western Ecuador in northern South America. It is non-migratory, or sedentary, and lives in closed-forest habitats, specifically the forest understory, at elevations from sea level to 2000 meters. Females are typically found lower in the forest understory, while males generally fly at higher elevations. At night, adult individuals roost on twigs or tendrils between two and ten meters above the forest floor. Females deposit their eggs on a variety of plants in the genus Passiflora, which are the species’ most common host plants. H. cydno is the only heliconiine classified as oligophagous. This species is also defined by its tendency to hybridize and its use of Müllerian mimicry. Its wing coloration is a key factor in mate choice, and this trait also has implications for sympatric speciation. Additional characteristics of H. cydno include macrolide scent gland extracts and wing-clicking behavior.
