Asian Comma Butterfly: A Detailed Look at Polygonia c-aureum
The Asian comma, scientifically known as Polygonia c-aureum, is a distinctive medium-sized butterfly native to various regions across Asia. Belonging to the family Nymphalidae, this species is a notable member of the Lepidoptera order, recognized for its unique wing patterns and specific ecological niche.
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Key Facts
- Scientific Name: Polygonia c-aureum
- Wingspan: Approximately 27 mm
- Primary Habitat: Suburban areas across Japan, Korea, China, Taiwan, and Indochina
- Larval Food Source: Humulus japonicus (Japanese hop)
- Conservation Status: Not a threatened species
Scientific Classification
To understand the place of the Asian comma in the natural world, it is helpful to look at its biological hierarchy. This classification places the butterfly within the larger group of arthropods and insects.
| Rank | Taxon |
|---|---|
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Clade | Pancrustacea |
| Class | Insecta |
| Order | Lepidoptera |
| Family | Nymphalidae |
| Genus | Polygonia |
| Species | P. c-aureum |
Physical Appearance and Identification
The Asian comma is characterized by its striking visual features, which serve both aesthetic and survival purposes. With a wingspan of roughly 27 mm, the butterfly displays a vibrant color palette on its upper wing surfaces.
Upper and Underside Markings
The upper side of the wings is primarily orange, decorated with distinct black dots. However, the underside provides a stark contrast, designed for camouflage. The undersides are a mottled brown, resembling the texture of tree bark, which helps the butterfly blend into its environment.
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A defining feature of this species is the shiny comma mark located at the center of the hindwing. While many species in the Polygonia genus share similar traits, the Asian comma can be distinguished by the presence of blueish markings on the bottom of its hindwing.
Ecology and Distribution
The Asian comma is a resilient species that thrives in various environments, particularly within suburban areas. Its range is extensive, stretching from Hokkaidō in the north to Tanegashima in the south, and encompassing the Korean Peninsula, China, Taiwan, and Indochina.
Diet and Life Cycle
The survival of the species relies heavily on specific host plants during its larval stage. The larvae (caterpillars) of P. c-aureum primarily feed on Humulus japonicus, commonly known as the Japanese hop. Because it is widely distributed and common in human-adjacent habitats, it is currently not considered a threatened species.
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Frequently Asked Questions
Where can I find the Asian comma butterfly?
You can find this butterfly in several Asian regions, including Japan (from Hokkaidō to Tanegashima), the Korean Peninsula, China, Taiwan, and Indochina, often in suburban settings.
How can I tell an Asian comma apart from other comma species?
The most reliable way to identify the Asian comma is by looking for the blueish markings on the bottom of its hindwing, which distinguish it from other similar species.
What do Asian comma caterpillars eat?
The larvae feed on plants such as Humulus japonicus, also known as the Japanese hop.
Is the Asian comma an endangered species?
No, the Asian comma is a common species and is not classified as a threatened species.
What is the wingspan of a Polygonia c-aureum?
The average wingspan for this butterfly is 27 mm.