Macroglossum clemensi 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 24 mm for males and 25 mm for females. The abdomen has a pair of conspicuous lateral white spots. This species is similar to Macroglossum albigutta albigutta

Macroglossum albigutta

Macroglossum albigutta is a moth of the Sphingidae family. It is known from the Solomon Islands.The length of the forewings is about 23 mm. It is a very dark species with a distinct white line above the eye. The abdomen upperside has two prominent white basal spots, brownish black side tufts and a...

but the area distal to the pale median band on the forewing upperside is darker. The basal area of the hindwing upperside is also darker and more extended.