What biological limitation is common to the adult Io moth stage regarding sustenance?
Answer
It often lacks functional mouthparts and does not eat.
A significant biological detail about the adult Io moth is that it often lacks functional mouthparts, meaning the winged stage does not eat and must rely on energy accumulated during the larval phase.

Related Questions
What is the scientific catalog designation for the Io moth?To which family of moths, often referred to as giant silkmoths, does Automeris io belong?What is the maximum impressive wingspan mentioned for the Io moth?Which color best describes the typical appearance of the adult female Io moth?What is the nature of the dense, branched spines covering the Io moth caterpillar?How are the conspicuous eyespots on the hindwings usually hidden when the Io moth is resting?What biological limitation is common to the adult Io moth stage regarding sustenance?What is the typical, brief duration of the adult Io moth's existence?Which of the following plants is explicitly listed as a known host plant for the Io moth caterpillar?What is the derivation of the species name *Automeris* from Greek words?