''Callidrepana patrana'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

in the family

Drepanidae The Drepanidae are a family of moths with about 660 species described worldwide. They are generally divided in three subfamilies) which share the same type of hearing organ. Thyatirinae, previously often placed in their own family, bear a supe ...

. It was described by Frederic Moore in 1866. It is found in

Nepal Nepal (; ne, :ne:नेपाल, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in S ...

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

Cambodia Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailan ...

, Sri Lanka,

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...

, mainland China, Japan and

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

Description

The

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

is 29–36 mm. Adults have been recorded in April and June. Head fulvous. Thorax and abdomen pale fawn in colour. Wings are pale or dark dawn-colour. Forewings with traces of an ante-medial waved line. Often wanting dark patch on the discocellulars. A double brown line runs from the apex to inner margin beyond the middle. A series of sub-marginal dark specks found on the veins. The area in the cell and below the costa, the veins, the outer edge of the oblique line and the outer margin spangled with brilliant bluish-silver scales. Hindwings have a double straight medial line not reaching the costa. A post-medial series of specks present. Outer edge of the line and outer margin is with silvery scales. The Sri Lankan form is much darker with discocellular patch of the forewing is broken up into three small spots and with more silvery irroration (sprinkles). The larvae feed on the leaves of '' Rhus succedanea'' and '' Rhus ambigus''. The mature larvae curl the leaf margin with fixed posterior end by silk at mid-rib, pupation takes place inside this curled leaf. At rest, they curl their head and thorax toward the lateral abdomen and keep their horn flat or raised up, thus resembling bird droppings.

Subspecies

*''Callidrepana patrana patrana'' (north-eastern India, Sri Lanka, northern Myanmar, Taiwan, Laos, China: Szechwan, Yunnan, Fukien, Chekiang) *''Callidrepana patrana palleolus'' (Motschulsky, 1866) (Japan)

References

Moths described in 1866 Drepaninae Moths of Japan {{Drepaninae-stub