|scientific name Campaea perlata |
common name Pale Beauty
Widespread in forested and shrubby habitats.
Adults fly late June through early August, peaking in the latter half of July.
The Pale Beauty is readily recognizable by its large size and pale green wings, crossed by two transverse lines. The green colour fades to pale tan in older museum specimens.
Known as the fringed looper, the caterpillar has, as the name suggests, short, hair-like fringes along the ventral margin; when apresssed close to a branch, the fringes help break the outline of the body and make the larva nearly invisible (see Ives & Wong 1988). The caterpillars overwinter in the third or fourth instar (McGuffin 1981), likely exposed on bark and branches.
Adults often flush out of shrubby understory during the day, but are primarily nocturnal and come to lights. At northern latitudes where nights are very short or absent during the flight period, adults are diurnal (McGuffin 1981). One of our most common and conspicuous geometrids.
Not of concern.
Larvae are generalists on a wide range of deciduous trees, shrubs and conifers. Prentice (1963) reports most larval collections were from Trembling aspen (Populus tremuloides).
Alaska to Labrador and Newfoundland, south to GA, AR, and AZ (McGuffin 1981, Wagner et al. 2001).
Chelsea Martin (2009-07-29)
I found this species in Canyon Creek, Alberta. Just off the Lesser Slave Lake on July 28, 2009.
etienne benoit (2011-06-14)
Found one campaea perlata caterpillar perfectly blending in white and brown rocks from a trail in Bois de belle riviere Mirabel Quebec. June 14 2011
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