Macroglossum gyrans is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Sphingidae

Sphingidae

Sphingidae is a family of moths , commonly known as hawk moths, sphinx moths and hornworms, that includes about 1,200 species . It is best represented in the tropics but there are species in every region . They are moderate to large in size and are distinguished among moths for their rapid,...

 family. It is known from south-east Asia

Asia

Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

.

The length of the forewings is 16-23 mm. The upperside of the head, thorax, and basal half of the abdomen are the same grey colour as the forewing upperside. The underside of the palpus, thorax, and legs are almost pure white. The sides of the thorax and legs are shaded or speckled with brown scales. The abdomen underside is grey brown. The forewing upperside is grey. Both wing undersides are dull ochraceous tawny, shaded with grey brown, the bases are more rusty brown. The hindwing upperside is not darker at the base than in the middle and is tawny-rust coloured, gradually becoming brown distally, but the brown border is not sharply defined and the lines are not prominent. The hindwing underside inner area is pale yellow at the base.