A triangle of dark dots on the American Dun-bar Moth are helpful for indentification... when they are present.
Not every American Dun-bar Moth has the trio of dots in the middle band of the brown forewings. This is unfortunate because without them, they become harder to recognize. If fully flushed with color and pattern, the upper part of the wings have a single dot, and the bottom edge has a row of dots. Various individuals may be almost uniform in color with pale dots. Some individuals have bands that alternate dark and light.
This is a ubiquitous moth and can be seen in a variety of habitats, sitting with its wings tented over its body. Omnivorous green caterpillars feed on inchworms as well as oak leaves.
Scientific Name: Cosmia calami
Butterfly or Moth
Size (Adult; Length): 15mm to 17mm (0.59in to 0.66in)
Colors: brown; tan; ivory; black
Descriptors: trio of dots; triangle dot; three point triangle; dotted bottom line; flying; black dots
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.