[1977] Strabo is not the only one who mentions this: Virgil says,
“Spelunca alta fuit, vastoque immanis hiatu,
Scrupea, tuta lacu nigro, nemorumque tenebris;
Quam super haud ullæ poterant impune volantes
Tendere iter pennis; talis sese halitus atris
Faucibus effundens supera ad convexa ferebat;
Unde locum Graii dixerunt nomine Avernum.”
Æneid. vi. 237.
[1978] The Greeks applied the term Plutonian to places where disagreeable and pestilential exhalations arose.