In a rare entomological event, the discovery of an atlas moth, renowned as one of the largest moths globally, has captivated researchers in Washington state. The colossal insect was spotted in Bellevue, just west of Seattle, prompting experts to reach out to the public for additional sightings and information about this elusive species.

Entomologists in Washington state confirmed the unprecedented discovery of an atlas moth, one of the largest known moths globally, near Seattle. This rare find has prompted experts to urge residents to report any additional sightings of this exotic insect.

The atlas moth, known scientifically as Attacus atlas, is native to the tropical regions of Asia, spanning from India to the Philippines and south to Indonesia. Characterized by its impressive wingspan of up to 10 inches, the atlas moth is renowned for its deep, almost mysterious hues ranging from rich burgundy to near-black. Notably, while the term “black tulip” often refers to a botanical enigma, in the insect world, the atlas moth stands as a symbol of mystery and elegance.

This particular specimen was reported by a University of Washington professor in early July after being found on the side of a garage in Bellevue. After confirming the species with the U.S. Department of Agriculture, experts now believe this is the first time the moth has been detected in the U.S.

Despite its captivating appearance and enormous wingspan, the atlas moth doesn’t have an extended lifespan. Its proboscis, a vital organ used by butterflies and moths to drink nectar, is exceptionally small and non-functional. As a result, the moth typically lives only one to two weeks.

The atlas moth gains much of its sustenance during its caterpillar phase, where it voraciously consumes leaves from various trees, including cinnamon, citrus fruit, guava, and Jamaican cherry trees. Moth caterpillars are known for producing silk, and the cocoons they leave behind have even been repurposed as purses, showcasing the intriguing intersection of nature and human creativity.

What makes the atlas moth even more extraordinary is its ability to mimic a defensive posture. When its wings are open, they appear like two cobra heads, a clever strategy to deter potential predators. This adaptation highlights the evolutionary marvels that have allowed the atlas moth to thrive in its native habitats.

Despite its native range being primarily in Asia, the recent discovery in Washington state raises questions about the potential survival of this tropical species in the Pacific Northwest. Sven Spichiger, managing entomologist for the state’s Department of Agriculture, expressed uncertainty about whether the atlas moth could endure the conditions of the region.

The atlas moth is federally quarantined in the U.S., making it illegal to have or sell live atlas moths without a permit from the USDA. This legal designation aims to prevent the establishment of a population and potential ecological impact in areas where the moth is not native.

To address the lack of a known trapping method for the atlas moth, officials are now relying on reports from the public to determine if there are more of these majestic insects in the state. Residents are encouraged to take photos of the moth, note the location of the sighting, and promptly inform their state or local agriculture department.

This unprecedented discovery of the atlas moth in the United States adds a fascinating chapter to the exploration of entomology and biodiversity. As researchers delve deeper into understanding the circumstances surrounding this rare sighting, the cooperation of the public becomes instrumental in shedding light on the potential presence and impact of this remarkable species in Washington state.