Rare White Monarch Butterfly Sighted in Bridgeton, Missouri
A rare white monarch butterfly, a variation caused by a recessive genetic trait, was spotted in Bridgeton, Missouri. This sighting is significant as white monarchs are exceptionally rare, with only a few documented instances in Missouri historically.
St. Louis, MO, August 28, 2026 — A monarch butterfly exhibiting a rare white coloration has been observed in Bridgeton, Missouri. This unusual sighting is attributed to a recessive genetic trait within the monarch butterfly population.
White monarch butterflies are an exceptionally uncommon occurrence. While the typical monarch butterfly is characterized by its vibrant orange wings with black and white markings, the appearance of a white variant is a notable event for lepidopterists and nature enthusiasts. The specific genetic trait responsible for this coloration is recessive, meaning an individual must inherit two copies of the gene to display the trait.
According to available documentation, sightings of white monarchs in Missouri are historically infrequent. The recent observation in Bridgeton adds to the limited record of these rare genetic variations appearing in the state. Information regarding the exact date of the sighting, the individual or organization that reported it, or the specific location within Bridgeton beyond the city name was not provided.
The significance of this sighting lies in its rarity and its connection to the genetic diversity of monarch butterflies. While the ecological impact of this specific trait is not detailed, the observation highlights the natural variations that can occur within species. Further details concerning the butterfly’s lifespan, reproductive behavior, or population numbers related to this genetic variation were not included in the initial report.
Story summarized from the original created by Rebecca Thiele on www.stlpr.org, see more information here.
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