Scarce Swallowtail

Iphiclides podalirius · Order: Lepidoptera · Family: Papilionidae

Also called: pear-tree swallowtail, sail swallowtail

Damages trees, gardens or crops. The caterpillars feed on many fruit trees and garden shrubs, so they can damage orchards and gardens.

Source: Wikipedia

Scarce Swallowtail
Photo: Radu Teodoreanu, CC BY

The scarce swallowtail has creamy-white or pale-yellow wings with six tiger-stripe markings on the forewings and blue crescents plus an orange spot on the hindwings, ending in a relatively long tail. Adults fly from March to October and may have one to three generations per year; summer chrysalids are green, while those that hibernate are brown.

Source: Wikipedia

How to recognize it

Wings are creamy white or pale yellow with six tiger-stripe patterns on the forewings and blue crescent marks with an orange spot on the hindwings, plus a long tail.

Source: Wikipedia

Size

Males have a wingspan of about 60 to 80 mm, while females are slightly larger at 62 to 90 mm.

Source: Wikipedia

Where it lives

They live in gardens, towns, fields, open woodlands, especially where sloe thickets and orchards are present.

Source: Wikipedia

What it eats

Caterpillars eat a wide variety of Rosaceae trees and shrubs, including hawthorn, apples, many Prunus species (plums, cherries, apricots, peaches, almonds), pears and rowan.

Source: Wikipedia

Life cycle

Adults are on the wing from March through October, producing one to three generations each year. Summer chrysalids are typically green, while those that overwinter turn brown.

Source: Wikipedia

When you see it

You can see adults flying between March and October.

Source: Wikipedia

Where it is found in the US

Recorded in 1 of 51 states and DC. Most records: Indiana.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

More photos

Same family (Papilionidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Scarce_swallowtail

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.