Which trait describes Lymantriidae (tussock moths)?

Which trait describes Lymantriidae (tussock moths)?

• A. Medium, 1-2 inch wingspan
• B. Hairy, prominent tufts on the back
• C. Iridescent blue wings
• D. Geometric patterns or spots

Answer: (B)

Tussock moths are defined by their hairiness and the prominent tufts on the body. Both the adults and, especially, the larvae feature dense setae with noticeable tufted clusters along the back or along the abdomen, which is what the term “tussock” refers to. That distinctive hairiness is the best clue for identifying this group, setting them apart from moths that have plain wings, iridescent scales, or patterned markings. Other options describe traits that are common in many moths and don’t uniquely identify tussock moths.

Tussock moths are defined by their hairiness and the prominent tufts on the body. Both the adults and, especially, the larvae feature dense setae with noticeable tufted clusters along the back or along the abdomen, which is what the term “tussock” refers to. That distinctive hairiness is the best clue for identifying this group, setting them apart from moths that have plain wings, iridescent scales, or patterned markings. Other options describe traits that are common in many moths and don’t uniquely identify tussock moths.