Special Segments

General Topics

Spicebush Swallowtail

(Papilio troilus)

 

 

Spicebush Swallowtail (Papilio troilus Linnaeus)

Wing span: 3 - 4 inches (7.5 - 10 cm).

Identification: Upper surface of forewing is mostly black with ivory spots along margin. Upper surface of hindwing has orange spot on costal margin and sheen of bluish (female) or bluish-green (male) scales. Underside of hindwing with pale green marginal spots.

Life history: Males patrol in woods, roads and woodland edges to find receptive females. Females lay single eggs on underside of host plant leaves. Caterpillars live in shelters of folded-over leaves and come out to feed at night. Some chrysalids from each generation hibernate.

Flight: 2 generations per year from April-October. In Florida, several generations between March-December.

Caterpillar hosts: Spicebush (Lindera benzoin), sassafras trees (Sassafras albidum); perhaps prickly ash (Zanthoxylum americanum), tulip tree (Liriodendron tulipifera), sweetbay (Magnolia virginiana), camphor (Cinnamomum camphora), and redbay (Persea borbonia).

Adult food: Nectar from Japanese honeysuckle, jewelweed, thistles, milkweed, azalea, dogbane, lantana, mimosa, and sweet pepperbush.

Habitat: Deciduous woodlands, fields, roadsides, yards, pine barrens, wooded swamps, and parks.

Range: Eastern states from southern Canada to Florida; west to Oklahoma and central Texas. Occasionally strays to North Dakota, central Colorado, and Cuba.

 

Spicebush Swallowtail (Papilio troilus)