Attributes of Eacles imperialis

Imperial moth
Eacles imperialis (Drury, 1773)

Family: Saturniidae
Subfamily: Ceratocampinae
Identification: Females are larger than males. Upperside is yellow with pinkish brown to purple-brown patches, bands, and cell spots, and tiny brown spots scattered overall. Males have larger patches on the forewings than females, except for some subspecies pini males which have reduced purple and are mostly yellow.
Wing Span: 3 1/8 - 6 7/8 inches (8 - 17.4 cm).
Life History: Adults emerge before sunrise and mate after midnight the next day. Females lay eggs at dusk singly or in groups of 2-5 on both surfaces of host plant leaves. The eggs hatch in about 2 weeks, and the caterpillars are solitary feeders. Pupation takes place in underground burrows.
Flight: One brood; in the north from June-August, in the south from April-October.
Caterpillar Hosts: Conifers and deciduous trees and shrubs including pine (Pinus), oak (Quercus), box elder (Acer negundo), maples (Acer), sweet gum (Liquidambar styraciflua), and sassafras (Sassafras albidum). Confirmed feeding on Norway spruce (see record 738773). Subspecies pini feeds only on conifers.
Adult Food: Adults do not feed.
Habitat: Deciduous and evergreen forests.
Range: Maine west to eastern Nebraska, south to the Florida Keys and central Texas. Subspecies pini occurs across the northern Great Lakes basin and the northern third of Michigan's Lower Peninsula.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Taxonomy Notes:

Images of Eacles imperialis

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Eacles imperialis - Eacles-imperialis-Bob-Moul-231.jpg

Eacles imperialis - Eacles-imperialis-Bob-Moul-231.jpg

Eacles imperialis - Eacles_imperialisTXTravis05September08KellyMortensen.jpg

Eacles imperialis - Eacles_imperialisTXTravis05September08KellyMortensen.jpg
Eacles imperialis - Eacles_imperialisTXTravis05September08KellyMortensen2.jpg

Eacles imperialis - Eacles_imperialisTXTravis05September08KellyMortensen2.jpg
Eacles imperialis - Eacles_imperialis-RayHelman.jpg

Eacles imperialis - Eacles_imperialis-RayHelman.jpg
Eacles imperialis - Eacles_imperialisRumple1.jpg

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Eacles imperialis - ImperialMothlarva-Simons.jpg

Eacles imperialis - ImperialMothlarva-Simons.jpg
Eacles imperialis - ImperialMoth-Simons.jpg

Eacles imperialis - ImperialMoth-Simons.jpg


The map below displays all BAMONA data for this species and has three different data layers:
1. All records (yellow dots)   2. Recently verified records (orange dots)*   3. US county records (purple)

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*The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. Sometimes, there are several records at the same location. Use the table view to access these records.

By default, the fifty most recently verified sightings are below. Sort by Observation Date to see the most recent sightings, or filter the sightings by region to get a regional list.

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Observation Date Submitter Region Verified Datesort icon
July 23, 2016 jpburke Linn County, Iowa, United States August 26, 2016 Details
August 03, 2016 isufiredog Pottawattamie County, Iowa, United States August 26, 2016 Details
August 21, 2016 Karla J. Ott Dane County, Wisconsin, United States August 24, 2016 Details
August 23, 2016 Gavinbugman Texas, United States, Wood County August 23, 2016 Details
August 02, 2016 iangardner Lebanon County, Pennsylvania, United States August 22, 2016 Details
July 25, 2016 lilkriskattn Sequatchie County, Tennessee, United States August 21, 2016 Details
July 27, 2016 johnmiller Bradley County, Tennessee, United States August 21, 2016 Details
August 06, 2016 JessMcKay Knox County, Tennessee, United States August 21, 2016 Details
August 19, 2016 Cathymark Ontario, Canada August 19, 2016 Details
July 27, 2014 Peter Homann Leon County, Florida, United States August 18, 2016 Details
July 14, 2016 sara cook Lehigh County, Pennsylvania, United States August 12, 2016 Details
August 11, 2016 mothwomandiane Chesterfield County, Virginia, United States August 11, 2016 Details
July 27, 2016 CarolynStein Allen County, Ohio, United States August 10, 2016 Details
August 07, 2016 Stott Noble Jefferson County, Alabama, United States August 08, 2016 Details
August 05, 2016 zjrogers Pickens County, South Carolina, United States August 06, 2016 Details
July 29, 2016 mattgrisnik Cabell County, West Virginia, United States August 06, 2016 Details
July 23, 2016 Haes Chester County, Pennsylvania, United States August 06, 2016 Details
August 02, 2016 Elusive.o Callaway County, Missouri, United States August 04, 2016 Details
July 30, 2016 Kurt R. Schwarz Bucks County, Pennsylvania, United States August 04, 2016 Details
August 04, 2016 Sheryl Johnson Scioto County, Ohio, United States August 04, 2016 Details
August 03, 2016 bradtumy Frederick County, Maryland, United States August 03, 2016 Details
August 01, 2016 digginflowers Lebanon County, Pennsylvania, United States August 03, 2016 Details
July 25, 2016 kwhite68 Randolph County, Missouri, United States August 02, 2016 Details
July 27, 2016 serjessie Clay County, Missouri, United States August 02, 2016 Details
July 30, 2016 dustinmogle Harrison County, Missouri, United States August 02, 2016 Details
July 29, 2016 iangardner Cumberland County, Pennsylvania, United States August 02, 2016 Details
July 31, 2016 hamiltonlen Ontario, Canada August 01, 2016 Details
August 01, 2016 Gigglesb4u Brevard County, Florida, United States August 01, 2016 Details
August 01, 2016 kgribbins Bartholomew County, Indiana, United States August 01, 2016 Details
July 29, 2016 Amaryllis Davidson County, North Carolina, United States August 01, 2016 Details
July 27, 2016 wcraigm Prince Edward County, Virginia, United States July 31, 2016 Details
June 27, 2016 erica32paulk Dale County, Alabama, United States July 30, 2016 Details
July 21, 2016 annapythia Monroe County, Indiana, United States July 30, 2016 Details
July 21, 2016 treichard Howard County, Maryland, United States July 30, 2016 Details
July 20, 2016 QuirkyTowers Lewis County, West Virginia, United States July 29, 2016 Details
July 28, 2016 caw33iii Wake County, North Carolina, United States July 28, 2016 Details
July 16, 2016 iangardner Sussex County, Delaware, United States July 28, 2016 Details
July 27, 2016 clarissa.lehman Brooke County, West Virginia, United States July 27, 2016 Details
July 23, 2016 mdolomieu1 Christian County, Missouri, United States July 26, 2016 Details
July 26, 2016 Angela_Rudd Iredell County, North Carolina, United States July 26, 2016 Details
July 13, 2016 sndunlap Tucker County, West Virginia, United States July 26, 2016 Details
July 24, 2016 Frank Huggins Fayette County, Kentucky, United States July 25, 2016 Details
July 25, 2016 Rob Sopko Somerset County, New Jersey, United States July 25, 2016 Details
July 22, 2016 Brad Damron Ohio, United States July 24, 2016 Details
July 24, 2016 EllieMay Indiana, United States July 24, 2016 Details
July 22, 2016 Mike belfield St Clair County, Illinois, United States July 22, 2016 Details
July 21, 2016 Sammie Wisner York County, Pennsylvania, United States July 22, 2016 Details
July 22, 2016 CarrollCountyKentuckyCES Carroll County, Kentucky, United States July 22, 2016 Details
July 19, 2016 digginflowers Adams County, Pennsylvania, United States July 21, 2016 Details
July 19, 2016 jasonsewell Goochland County, Virginia, United States July 20, 2016 Details