The fossil remains were unearthed in the Cuevas de los Murciélagos near San Andrés y Sauces in the north of La Palma, Canary Islands.

The species epithet commemorates Spanish palaeontologist Miquel Trías who collected the holotype together with Josep Antoni Alcover in July 1985.

The holotype is an almost complete cranium with both pterygoids but lacking mandible, quadrate bones, and the palatine process of maxilla.

The shorter wings might have reduced its flight ability which wasn't necessary due to the lack of predators on La Palma.

However, it might have become extinct in the early Holocene when the first human settlers, accompanied by cats and rats, arrived at the Canary Islands.