Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Sphingidae
Genus: Agrius
Species: A. convolvuli
Binomial name: Agrius convolvuli
Synonyms: Sphinx convolvuli, Sphinx abadonna, Sphinx pseudo-convolvuli, Sphinx roseofasciata, Protoparce distans, Protoparce orientalis, Agrius peitaihoensis, Agrius ichangensis, Agrius indica, Agrius aksuensis, Agrius batatae, Agrius tahitiensis, Agrius marshallensis, Agrius nigricans, Agrius javanensis, Herse convolvuli extincta, Herse convolvuli posticoconflua
Common names: Convolvulus Hawk-moth, Unicorn hawk-moth, Kūmara moth, Sphinx moth, Hihue

Agrius convolvuli is a large species of a nocturnal hawk-moth with a wingspan of over 10 cm and body length of 42 mm. It is common throughout Europe, Asia, Africa, occasionally in Australia and New Zealand where it can be very localised and not often seen. It endemic to the North Island, and northern South Island.
The wingspan is 80–130 mm. It is sexually dimorphic; female often considerably larger than male. Its basic colouration is in greyish tones, but the abdomen has a broad grey dorsal stripe and pink and black bands edged with white on the sides. The hindwings are light grey with darker broad cross lines.
The adult moths only come out at dusk and they sip nectar while on the wing with their long, tubular mouthparts, like hummingbirds. They have been seen feeding on flax flowers. This moth is very attracted to light
Its larvae are large, distinctive caterpillars with a horn. They can be found in a range different colours forms from brown, black or a bright green. They eat the leaves of the Convolvulus and Kumara.  Other recorded food plants include a wide range of plants in the Araceae, Leguminosae, Nicotiana and Malvaceae families. The adult moth has a very long proboscis (longer than its body) that enables it to feed on long trumpet-like flowers. 
The moth’s pupa easily recognised by having a free proboscis that is nearly half the length of its body.


1-Agrius convolvuli by Donald Hobern.jpg
Below are some of the caterpillar colour forms.
1-Agrius convolvuli .jpg

1-Agrius convolvuli.jpg

1-Agrius convolvuli,.jpg 

Thanks to Wikipedia for text and information: