Spangle Swallowtail
Common NameSpangle Swallowtail
Scientific NamePapilio protenor
FamilyPapilionidae
SubfamilyPapilioninae
Wingspan (mm)100
Wing Patternspotted
Primary Colorsblack, orange, blue
HabitatForests, open woodlands, often near streams and rivers
Geographic RangeEast Asia (China, Japan, Korea, Taiwan, northern India)
Host PlantsZanthoxylum, Phellodendron, Citrus
Flight PeriodApril to October (multiple broods)
Flight Stylegliding
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on host plant leaves. Larvae are typically green with cryptic patterns, pupating into a chrysalis that resembles a twig. Multiple generations occur annually.
Identification TipsKey features include its large size, overall dark coloration, and the distinctive row of orange-red crescent spots on the hindwings. A subtle blue iridescence may be visible on the upper hindwings.
Description
A large, dark swallowtail butterfly with predominantly black wings. The hindwings feature a series of prominent orange-red crescent-shaped spots along the margin and a subtle iridescent blue sheen on the upper surface.
