Macroglossum regulus 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 India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

.

The upperside of the head, thorax, and first three abdominal segments is greenish. The abdomen upperside has large and confluent orange lateral spots on segments two to seven, the remaining segments are deep brownish black, with an uninterrupted belt of pure white at the base of the seventh. The thorax underside, the legs, the greater part of the first abdominal sternite and the mesial spot on the second and third are creamy. Both wing undersides are maize-coloured at the extreme base, otherwise coloured like the upperside of the hindwing. The hindwing upperside is chestnut-red.