''Spirama helicina'' is a

moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...

of the family

Erebidae The Erebidae are a family (biology), family of moths in the superfamily Noctuoidea. The family is among the largest families of moths by species count and contains a wide variety of well-known macromoth groups. The family includes the underwin ...

first described by

Jacob Hübner Jacob Hübner (20 June 1761 – 13 September 1826, in Augsburg) was a German entomologist. He was the author of ''Sammlung Europäischer Schmetterlinge'' (1796–1805), a founding work of entomology. Scientific career Hübner was the author of '' ...

in 1824. In older texts, the species was classified as morph of '' Spirama retorta''.

Description

The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingsp ...

is 60–70 mm. As in many species of genus ''

Spirama ''Spirama'' is a genus of moths in the family Erebidae Species description, first described by Achille Guenée in 1852. Description Antennae usually minutely fasciculate (bundled) in the male. The tibia is not hairy and mid-tibia spined. Palpi w ...

'', the pattern on the wings when the moth is resting looks like the face of a snake with slightly opened mouth. Forewings with arched costa towards apex, which is nearly rectangular. Male with a fold on inner area of hindwings, containing an erectile ridge of very long hair. Antennae fasciculate. Very similar to ''S. retorta'', but differs from more brightly colored than that species. Female with ochreous sub-marginal line of hindwings crenulate. Male has dark chestnut brown head and collar. Thorax paler with dark bands. Abdomen crimson with triangular black dorsal patches. Wings fuscous brown. A large "inverted comma" mark found beyond end of cell, with ochreous and black edges and some white on inner edge of "tail", the center fuscous black.

Distribution

It is found in

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

(south-eastern Siberia,

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China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

(

Sichuan Sichuan is a province in Southwestern China, occupying the Sichuan Basin and Tibetan Plateau—between the Jinsha River to the west, the Daba Mountains to the north, and the Yunnan–Guizhou Plateau to the south. Its capital city is Cheng ...

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Korea Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in 1945, it has been politically Division of Korea, divided at or near the 38th parallel north, 3 ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

(

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Kyushu is the third-largest island of Japan's Japanese archipelago, four main islands and the most southerly of the four largest islands (i.e. excluding Okinawa Island, Okinawa and the other Ryukyu Islands, Ryukyu (''Nansei'') Ryukyu Islands, Islands ...

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

(

Assam Assam (, , ) is a state in Northeast India, northeastern India, south of the eastern Himalayas along the Brahmaputra Valley, Brahmaputra and Barak River valleys. Assam covers an area of . It is the second largest state in Northeast India, nor ...

Meghalaya Meghalaya (; "the abode of clouds") is a states and union territories of India, state in northeast India. Its capital is Shillong. Meghalaya was formed on 21 January 1972 by carving out two districts from the Assam: the United Khasi Hills an ...

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, the

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(

Negros Negros (, , ) is the fourth largest and third most populous island in the Philippines, with a total land area of . The coastal zone of the southern part of Negros is identified as a site of highest marine biodiversity importance in the Coral Tr ...

Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

and

Sulawesi Sulawesi ( ), also known as Celebes ( ), is an island in Indonesia. One of the four Greater Sunda Islands, and the List of islands by area, world's 11th-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Min ...

Sexual dimorphism

''Speiredonia japonica''

Although ''Speiredonia japonica'' is an accepted synonym of ''Spirama helicina'',Haruta Collection - ''Spirama helicina'' (Hubner) ハグルマトモエ,Cat.4245
/ref> the ''Speiredonia japonica'' exemplars in Plate CCXI of the ''Catalogue of the Noctuidae in the Collection of the

British Museum The British Museum is a Museum, public museum dedicated to human history, art and culture located in the Bloomsbury area of London. Its permanent collection of eight million works is the largest in the world. It documents the story of human cu ...

'' illustrated by Sir George F. Hampson at the turn of the 20th century have a markedly different pattern.

References

External links

* Moths described in 1831 Insects of Korea Moths of Japan Moths of Asia Spirama {{Erebinae-stub