Arsenura sylla is a moth of the family Saturniidae first described by Pieter Cramer in 1779.

It is found from Venezuela south to Mato Grosso, Brazil and then west to Bolivia.

Males have a semblance of a tail and the female has an almost rounded rear wing.

One of its close relatives is the Arsenura armida moth, which is also found in Venezuela.

This article on a moth of the family Saturniidae is a stub.