I would appreciate any help in identifying this caterpillar.
- Location: Goa, India. Tropical climate
- Currently rainy season. Seen in the morning
- Length: about 5cm, Diameter: about 1cm
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This appears to be an oleander hawk-moth caterpillar (Daphnis nerii) shortly before pupating. Otherwise the caterpillar would be bright green in colour:
Newly hatched oleander hawk-moth larvae are three to four millimeters in length, bright yellow, and have a black, elongated "horn" on the rear of the body. … As they get older, the larvae become green to brown with a large blue-and-white eyespot near the head and a yellow "horn" on the rear. […] Just before it pupates, the oleander hawk-moth larva becomes browner in colour.