
Cydno Longwing
Common NameCydno Longwing
Scientific NameHeliconius cydno
FamilyNymphalidae
SubfamilyHeliconiinae
Wingspan (mm)70
Wing Patternstriped
Primary Colorsblack, white, blue, red
HabitatTropical rainforests, forest edges, clearings
Geographic RangeSouthern Mexico through Central America to Ecuador and Venezuela
Host PlantsPassiflora vitifolia, Passiflora ambigua, Passiflora biflora, Passiflora menispermifolia
Flight PeriodYear-round
Flight Stylegliding
Conservation Statusleast-concern
Lifecycle NotesLarvae feed on passionflower vines. Adults are unique among butterflies for feeding on pollen, which provides essential amino acids, extending their lifespan and reproductive period.
Identification TipsKey features include the large white band on the forewing, the blue iridescence on the upper side, and the distinctive reddish-orange band on the underside of the hindwing. It can be confused with other *Heliconius* species, but the specific pattern and coloration are diagnostic.
Description
A medium-sized butterfly with predominantly black wings, featuring a broad white band across the forewing and often a blue iridescent sheen on the upper side. The underside of the hindwing typically displays a prominent reddish-orange band.




