The metalmark butterfly, also known as the Riodinidae, is a small and brightly colored butterfly species found in the Americas. There are several synonymous terms for this butterfly, including lycaenid, hairstreak, and copper butterfly. The lycaenid metalmark butterfly is notable for its metallic, iridescent coloring, while the hairstreak metalmark butterfly features a distinctive tail-like projection at the base of its hind wings. The copper metalmark butterfly is known for its vibrant copper and bronze coloring, which is particularly striking in sunlight. With their delicate wings and stunning coloring, metalmark butterflies are a beloved sight in the wilderness for many nature enthusiasts.