Eucalantica icarusella is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 in the Yponomeutidae family. It is found in Costa Rica

Costa Rica

Costa Rica , officially the Republic of Costa Rica is a multilingual, multiethnic and multicultural country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west and the Caribbean Sea to the east....

(high elevations of Cartago, Heredia and San José).

The length of the forewings is 5.3-7.9 mm.

Etymology

The species is named after the Greek mythological character Ikaros and refers to the white forewing with scarlet dorsal suffusion resembling Icarus’ waxy wings burnt down by sunlight.