''Eurypteryx bhaga'', the hook-winged hawkmoth, is a moth of the family Sphingidae first described by

Frederic Moore Frederic Moore FZS (13 May 1830 – 10 May 1907) was a British entomologist and illustrator. He produced six volumes of ''Lepidoptera Indica'' and a catalogue of the birds in the collection of the East India Company. It has been said that Mo ...

in 1866.

Description

The wingspan is 82–84 mm. It is similar to '' Daphnis'' species, but easily distinguished by the falcate apex of the forewing, which also lacks a large oval dark green basal patch on the upperside. It is also similar to ''

Eurypteryx obtruncata ''Eurypteryx obtruncata'' is a moth of the family Sphingidae. It is known from Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it ...

'', but the forewing outer margin is less curved and the hindwing apex is evenly rounded. There is an incomplete line on the forewing upperside running from the costa towards the middle of the outer margin, dividing the light brown apical area from the deep brown discal area. The antemedian band has a pale basal edge. The hindwing upperside is almost uniformly dark brown with a lighter patch at the tornus. The forewing underside has two distinct median lines.

Gallery

Eurypteryx bhaga MHNT CUT 2010 0 27 Kuala Lumpur Malaysia female dorsal.jpg, Female Eurypteryx bhaga MHNT CUT 2010 0 27 Kuala Lumpur Malaysia female ventral.jpg, Female underside Eurypteryx bhaga MHNT CUT 2010 0 27 Wang Chin District, Phrae Province, Thailand male dorsal.jpg, Male Eurypteryx bhaga MHNT CUT 2010 0 27 Wang Chin District, Phrae Province, Thailand male ventral.jpg, Male underside

Distribution

It is known from Nepal, north-eastern India, from south-western to central

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

, Thailand, Malaysia (Peninsular, Sarawak) and Indonesia (Sumatra, Java, Kalimantan).

Biology

The

larvae A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...

feed on ''

Alstonia ''Alstonia'' is a widespread genus of evergreen trees and shrubs, of the family Apocynaceae. It was named by Robert Brown in 1811, after Charles Alston (1685–1760), professor of botany at Edinburgh from 1716 to 1760. The type species ''Alsto ...

'' species.

References

Eurypteryx Moths described in 1866 {{Macroglossini-stub