Wavy lines of gray, black, and white on its forewings cover a shocking flash of pink color on the hindwings of the Semirelict Underwing.
Like many Underwings, a bright colored hindwing is hidden by the larger forewings unless they are flat and open for viewing. Two thick black bands cross the reddish pink hindwings. Ripples of black, white, and gray cross the forewings, making the moth look a lot like the tree bark it rests on. A thicker,wavy line sits near the 'shoulders' and a prominent line sits near the bottom edge, dividing the wings into three sections. The middle section has a subreniform spot made of swirling black lines and possibly a brown hue. The bottom edges of the wings are scalloped with small black curved dashes accentuating them.
Caterpillars feed on willow, quaking aspen, and poplar trees.
Scientific Name: Catocala semirelicta
Butterfly or Moth
Size (Adult; Length): 33mm to 39mm (1.29in to 1.52in)
Colors: gray; black; pink; white
Descriptors: pink; fuchsia; two black bands; wavy lines; Jesus face; flying; scalloped bottom edge
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.
Butterfly and Moth Anatomy
Antennae: Butterflies and Moths have a pair of antennae on the head used as sensors.
Head: The head is home to the insect's eyes, antennae, and proboscis.
Thorax: Home to the three pairs of legs as well as vital internal organs.
Abdomen: Contains vital internal organs such as the heart(s) and reproduction facilities.
Forewing: The upper, forward wing pair used for flying.
Hindwing: The lower, rearward wing pair used for flying.
NOTE: Butterflies and Moths are part of the Lepidopteran order as they share many similarities.