Hemlock Looper Moth

Fascinating facts about the Hemlock Looper Moth

• Lambdina fiscellaria is a geometrid moth that inhabits the whole of North America, stretching from the Pacific to the Atlantic coast. Its distribution reaches south from Canada into the United States as far as Pennsylvania, Wisconsin and California, giving it a coast-to-coast range. This extensive area means the species encounters a wide variety of forest habitats across the continent.
• Three subspecies of Lambdina fiscellaria are formally recognised by taxonomists. The eastern hemlock looper is named Lambdina fiscellaria fiscellaria, while the western hemlock looper carries the name Lambdina fiscellaria lugubrosa. The third form, Lambdina fiscellaria somniaria, is known as the western oak or Garry oak looper. These distinct taxa reflect subtle regional variations within the species' broad range.
• Adult hemlock loopers are on the wing from August through early October, with the exact timing shifting according to latitude. In more northern locations the flight period may start later, while southern populations finish earlier. The moth has a modest wingspan of about 35 mm, a size typical for many geometrids. This seasonal flight window aligns with the availability of suitable host foliage for the emerging larvae.
• The larvae of the hemlock looper feed on a variety of trees, including hemlock, balsam fir, white spruce, oak and other hardwoods. Because the species occurs across North America from the Pacific to the Atlantic coast and as far south as Pennsylvania, Wisconsin and California, these host plants are widely available throughout its range.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Hemlock Looper Moth

In the shadowy recesses of North America's coniferous forests, the Hemlock Looper Moth weaves its subtle magic, its delicate, mottled wings beating in a hypnotic rhythm as it navigates the intricate latticework of branches and needles. With a gentle, insistent persistence, this unassuming creature moves through the world, leaving in its wake a trail of tiny, telling details - the faint, silky threads of its caterpillars, the soft, rounded contours of its eggs. As the moon rises high in the night sky, the Hemlock Looper Moth takes to the air, its ethereal dance a testament to the quiet, unobtrusive beauty that thrives in the hidden corners of our planet.

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