The Spotted Beet Webworm Moth caterpillar happily to expanded its diet to garden produce beyond its namesake.
Brown and white adults can be seen flying from May to late autumn though they can be year round in warmer parts of their range. They are nocturnal and come to lights at night. Caterpillars are green with purple spots on their head. They feed on beets (beetroot), but also consume chard, potatoes and amaranth.
Scientific Name: Hymenia perspectalis
Butterfly or Moth
Size (Adult; Length): 16mm to 22mm (0.62in to 0.86in)
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.