The 1973 Migration of the Day-Flying Moth Urania leilus

Abstract

All the moths of the Sept 1973 migration seem to have entered Trinidad by way of the north-western peninsula. There are no observations from the southern part of the island but there was never any suggestion of a northward movement as though some were migrating from the south. Once out of the north-western peninsula, the moths tended to keep heading east or to swing south to a greater or lesser extent. The movement north-east in Toco suggests a possible migration to Tobago.