Swallowtail Butterfly
Common NameSwallowtail Butterfly
Scientific NamePapilio machaon
FamilyPapilionidae
SubfamilyPapilioninae
Wingspan (mm)75
Wing Patternstriped
Primary Colorsyellow, black, blue, red
HabitatMeadows, grasslands, open woodlands, gardens, agricultural fields
Geographic RangeWidespread across much of Eurasia and North America (Alaska, Canada, parts of the US)
Host Plantswild carrot, fennel, parsley, dill, rue, angelica
Flight PeriodApril to October (multiple broods depending on region)
Flight Stylegliding
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on host plants. Larvae are green with black bands and orange spots, often displaying an osmeterium when threatened. Pupae are cryptic, resembling a twig or leaf, and can overwinter.
Identification TipsLook for the combination of bright yellow and black striped wings, the characteristic 'tails' on the hindwings, and the blue and red eyespots near the tails. Its strong, gliding flight is also distinctive.
Description
A large, striking butterfly with bright yellow wings adorned with bold black stripes and markings. The hindwings feature prominent black 'tails' and distinctive blue and red eyespots near the anal angle.
