Eupanacra greetae 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 Sulawesi

Sulawesi

Sulawesi is one of the four larger Sunda Islands of Indonesia and is situated between Borneo and the Maluku Islands. In Indonesia, only Sumatra, Borneo, and Papua are larger in territory, and only Java and Sumatra have larger Indonesian populations.- Etymology :The Portuguese were the first to...

.

The length of the forewings is about 26 mm. It is similar to Eupanacra tiridates

Eupanacra tiridates

Eupanacra tiridates is a moth of the Sphingidae family. It is known from the Philippines.It is similar to Eupanacra regularis regularis, but the postmedian lines on the forewing upperside are less curved. There is a black costal mark, a smaller costal spot and a triangular, white subapical mark...

and Eupanacra regularis regularis

Eupanacra regularis

Eupanacra regularis is a moth of the Sphingidae family. It is known from India and south-east Asia, including Myanmar, Thailand, Malaysia and Indonesia .It is similar to Eupanacra automedon.-Subspecies:...

, but have broader forewings. The upperside of the forewings is dull light green with a number of lines and a white V-shaped mark. There is a row of black dots found on the hindwing underside.