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Conservation Status

provided by University of Alberta Museums
More survey work is needed to determine this species' status in the province.
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Cyclicity

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The single AB record is from mid-August. Dates from Montana suggest peak activity is in early August
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Distribution

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There is only one record of this species for Alberta, from Dinosaur Provincial Park. It almost certainly occurs in the southeast corner of the province, because it is known from Govenlock, SK near the AB/SK border. Ranges from southern SK west to B.C., south to Arizona and New Mexico.
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General Description

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A relatively large moth, easily recognized by the black pattern on the white background. The only other species similar to this in Alberta is H. eglanterina, which has a pink and yellow ground colour, not white.
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Habitat

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Look for in the prairie region where sagebrush (Artemesia cana) is common.
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Life Cycle

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Not known for AB; may have a two-year life cycle, overwintering first as an egg, then as a pupa. These moths are active during the day and are not attracted to light.
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Trophic Strategy

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Larvae feed on Sagebrush (Artemisia tridentata, A. filifolia) in the southern U.S. Likely Artemisia cana in AB, as this is the only Sagebrush species found on the prairie.
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Hemileuca hera

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Hemileuca hera, the sagebrush sheep moth or Hera buckmoth, is a moth of the family Saturniidae. The species was first described by Thaddeus William Harris in 1841. It is found in North America from southern Saskatchewan west to British Columbia, south to Arizona and New Mexico.

The wingspan is 71–93 mm. Adults are on wing from July to September depending on the location.

The larvae of Hemileuca hera hera feed on Artemisia tridentata, A. tripartita, Lupinus and Eriogonum. The larvae of Hemileuca hera marcata feed on A. tridentata.

Subspecies

  • Hemileuca hera hera (Great Basin)
  • Hemileuca hera marcata (Southern Oregon)

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Hemileuca hera: Brief Summary

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Hemileuca hera, the sagebrush sheep moth or Hera buckmoth, is a moth of the family Saturniidae. The species was first described by Thaddeus William Harris in 1841. It is found in North America from southern Saskatchewan west to British Columbia, south to Arizona and New Mexico.

The wingspan is 71–93 mm. Adults are on wing from July to September depending on the location.

The larvae of Hemileuca hera hera feed on Artemisia tridentata, A. tripartita, Lupinus and Eriogonum. The larvae of Hemileuca hera marcata feed on A. tridentata.

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