Rhagastis velata
Rhagastis velata, the veiled mottled hawkmoth, is a moth of the family Sphingidae. It is known from Nepal, north-eastern India, Thailand, central and southern China and Taiwan. The wingspan is 66–74 mm. The upperside of the abdomen is without a pair of lateral golden stripes or (occasionally) with vestigial stripes on the posterior segments. The forewing upperside has four postmedian lines forming a conspicuous dark patch on the inner margin that is often continued towards the costa where it joins another (not always well-marked) patch near the discal spot. Two or three of the postmedian lines are usually strongly dentate. The forewing underside has a brown border. Larvae have been recorded feeding on Arisaema and Amorphophallus species in India. References

Rhagastis
Moths described in 1866