Rarely seen, this small Dart Moth has atypical, distinctive black markings that put it squarely in its genus.
Agnorisma bolii is one of three moths in its genus that live in North America. It is a small moth, and the brown wings are common enough among moths, as are the two pale lines that cross them, dividing the wings into three bands. The middle band has special features though, adding interest that is hard to overlook. A solid black square in the center of each forewing is a curious shape. Most markings seen on moths are oval or round, but this genus has sharp, squared edges on its most prominent marking. A trio of black dots sit above this square. A light brown thorax is covered in hair and the antennae have comb-like teeth.
Of the three Agnorisma moths, this one is rarely seen. Its diminutive size and cryptic coloring help hide it among woods and plants. What its caterpillars feed on is unknown, and its preferred habitat is also a bit of a mystery. It seems that gaps in this moth's life history are to be expected when the insect itself is scarcely found.
Scientific Name: Agnorisma bolii
Butterfly or Moth
Size (Adult; Length): 17mm to 20mm (0.66in to 0.78in)
Colors: brown; black
Descriptors: trio black dots; three black squares; black square; brown wings; flying; black line head; furry
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.