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ECOLOGY ▪ EDUCATION ▪ ADVOCACY

Adult male — Scott County (Brian Lowry)
Adult male (underside) — Scott County (Brian Lowry)
Adult female — Scott County (Brian Lowry)
Adult female (underside) — Brown County (Michele Pollock)
Mating adults (female left, male right) — Greene County (Lambda Mort)
Early instar caterpillars — Montgomery County (Chris Joll)
Middle instar caterpillars freshly molted — Montgomery County (Dale Sides)
Late instar caterpillar — Laporte County (Cookie Ferguson)
Recently eclosed adult with pupa mdash; LaGrange County (Doug Selzer)
American Flag Flag of Indiana An Indiana Native

Callosamia promethea — Promethea moth

(Drury, 1773)

promethea Species Callosamia Genus Attacini Tribe Saturniinae Subfamily Family Saturniidae Bombycoidea Superfamily Order Lepidoptera Insecta Class Hexapoda Subphylum Phylum Arthropoda Kingdom Animalia
promethea Species Callosamia Genus Attacini Tribe Saturniinae Subfamily Family Saturniidae Bombycoidea Superfamily Order Lepidoptera Insecta Class Hexapoda Subphylum Phylum Arthropoda Kingdom Animalia

Hodges# 7764

Etymology

Callosamia: Callo in Latin means “beautiful,” and in Greek mythology, Samia was a freshwater nymph and the daughter of the river god Maeander.

Promethea: Named for the Greek Titan, Prometheus, who stole fire from Zeus, shared with it humankind and was persecuted for his transgression. In classical art, Prometheus often appears in scenes with deep red coloring similar to that of the female moth.

Prometheus mural
José Clemente Orozco’s fresco mural Prometeo del Pomona College depicting Prometheus stealing fire from the heavens to give to humankind

Pronunciation

kal-oh-sam-eye-uh proh-mee-thee-uh

Other Common Names

Spicebush Silkmoth — referring to Lindera benzoin, one of its favored host plants.

Adult male — Scott County (Brian Lowry)
Adult male (underside) — Scott County (Brian Lowry)
Adult female — Scott County (Brian Lowry)
Adult female (underside) — Brown County (Michele Pollock)
Mating adults (female left, male right) — Greene County (Lambda Mort)
Early instar caterpillars — Montgomery County (Chris Joll)
Middle instar caterpillars freshly molted — Montgomery County (Dale Sides)
Late instar caterpillar — Laporte County (Cookie Ferguson)
Recently eclosed adult with pupa mdash; LaGrange County (Doug Selzer)

Adult Size and Description

  • Wingspan: 75–100 mm
  • Coloration and Patterning:
    • Males
    • Females
      • Upper surfaces of wings reddish-brown to yellowish-brown
      • Each wing with a light-colored, wavy postmedial line and a single angular discal spot near the center, which is sometimes faint
      • Forewings with single eyespot near the apex
  • Sexual Dimorphism:
    • Males and females differ significantly
  • Defense Mechanisms:
    • Crypsis — Tree coloration (females)
    • BatesianMimicry — Males mimic the toxic pipevine swallowtail (Battus philenor) butterfly
    • Deimatic Display — Flapping of wings when disturbed to display eyespots and red/white wing stripes to startle predators

Range

This map illustrates documented North American records of Callosamia promethea as of 31 December 2020.

species present icon Documented record(s)

Conservation Status — NatureServe Rankings

ConservationBaseMap Indiana Status National Status Global Status NR 5 5

secure 5: Secure not ranked NR: Not ranked

Historical References

Promethea moths were first described by British entomologist Dru Drury, who introduced the species to the world in his three-volume publication Illustrations of Natural History, Wherein are Exhibited Upwards of 240 Figures of Exotic Insects, published between 1770 and 1787. The photo below is a plate from Drury’s work that depicts a male Promethea Silkmoth (top) and a female (bottom)

Floral Associates

Callosamia promethea caterpillars are polyphagous and feed on a wide variety of native trees and shrubs. Adults lack a digestive system, do not eat, and exist solely for reproduction.


Known Larval Food Sources in Indiana
Family Taxonomic Name Common Name
Order: Dipsicales
AdoxaceaeViburnum spp.viburnums
Order: Ericales
EbenaceaeDiospyros virginianapersimmon
EricaceaeKalmia latifioliamountain laurel
StryacaeaeStryax spp.snowbells
StyracaceaeHalesia carolinaCarolina silverbells
Order: Fagales
BetulaceaeBetula spp.birches
FagaceaeFagus grandifoliaAmerican beech
Quercus spp.oaks
Order: Gentianales
RubiaceaeCephalanthus occidentalisbuttonbush
Order: Lamiales
OleaceaeFraxinus spp.ashes
Syringa spp.lilacs
Order: Laurales
LauraceaeLindera benzoinspicebush
Sassafras albidumsassafras
Order: Magnoliales
MagnoliaceaeLiriodendron tulipiferatulip tree
Magnolia spp.magnolias
Order: Malvales
TiliaceaeTilia americanaAmerican basswood
Order: Myrtales
LythraceaeLythrum spp.loosestrifes
Order: Pinales
PinaceaePinuspines
Order: Ranunculales
BerberidaceaeBerberis spp.barberries
Order: Rosales
RosaceaeMalus spp.apples and crabapples
Prunus spp.cherries
Pyrus spp.pears
Order: Salicales
SalicaceaePopulus spp.poplars
Salix spp.willows
Order: Sapindales
AceraceaeAcer spp.maples
Order: Saxifragales
AltingiaceaeLiquidambar styracifluaAmerican sweetgum

Promethea moth (Callosamia promethea) in Indiana

The map, graph(s), and data below represent the Indiana sightings of Callosamia promethea as of 18 December 2024, confirmed through photographic evidence by individuals who contributed to the Great American IN Nature Lepidoptera Project (GAIN LP).

Occurrences by County

Counties recorded: 33 of 92

Top counties/#of records:
Porter: 11
Scott: 9
Brown: 8
Owen: 8
Monroe: 8
Greene: 6
Jefferson: 6

species present icon GAIN LP documented in county

Sightings by Month

Total Sightings by Year

Sightings by Gender

Image Gallery

The images and records below were all submitted by individuals through the Great American Indiana Nature Lepidoptera Project (GAIN LP).

Additional Sources

Evans, D. 1978. Defensive Behavior in Callosamia promethea and Hyalophora cecropia (Lepidoptera: Saturniidae). The American Midland Naturalist, 100(2), pp.475-479.

Additional Photo Credit

Promethea mural by Jose Clemente Orozco is public domain via Wikimedia Commons.