Hyarotis adrastus, commonly known as the Tree Flitter, is a butterfly

Butterfly

A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...

 belonging to the family Hesperiidae.

Description

Distribution

Bengal. (Moore in P. Z. S.) Recorded from Ceylon (Hutchison, Wade, Mackwood); Andamans, Cachar (Wood-Mason and de Niceville); Sikkim (de Niceville; Elwes) ; Calcutta (de Niceville) ; Kumaon
(Doherty); Kangra, N.-W. Himalayas (Moore) Orissa (Taylor); Nilgiris (Hampson).