Malagasy birds as hosts for eye-frequenting moths.

While tear-feeding in moths on mammals is widespread, there have been no reports of this behaviour in Madagascar and none on birds. We report that a moth, Hemiceratoides hieroglyphica belonging to the Calpini, a generally fruit-feeding or blood-feeding lineage of noctuids, attacks sleeping birds in Madagascar. This moth is able to intrude its sharply tipped proboscis into a closed bird's eye. The proboscis is characterized by a specific armoury of hooks, barbs and spines similar to that in piercing calpines but dissimilar to that in other tear-feeding moths. This is the first report of exploitation of tears by Lepidoptera from the closed eyes of sleeping birds.