''Hypomecis separata'' is a species of

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

Geometridae The geometer moths are 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, paraphyleti ...

. It was first described by Francis Walker in 1863. It is found in

Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...

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 ...

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 ...

and

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

Description

Its wingspan is about 48 mm. Male without fovea at base of forewings. Hindwings with vein 5 absent. Male with bipectinate (comb-like on both sides) antennae, with decumbent (up-turned tips) branches. Hind tibia usually dilated with a fold and tuft of hair. Males lack secondary sexual patch to hindwings. Forewings with veins 10 and 11 stalked. Male rufous, suffused and striated in parts with black. Forewings of male with a slight ridge representing the fovea. A broad, ill-defined pale fascia found from base to outer margin below apex. The costal, inner and outer areas striated and black suffused. There is an indistinct annulus at end of cell and traces of a waved postmedial line. Hindwings with black striations. Basal area is suffused with fuscous. A crenulate (scalloped) postmedial line and an incomplete submarginal black band can be seen. Ventral side fuscous with prominent cell-spots.

References

Boarmiini Moths of Asia Moths described in 1863 {{Boarmiini-stub