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El Hierro, nicknamed Isla del Meridiano ("The Meridian Island"), is a Spanish island. It is the smallest and furthest south and west of the Canary Islands.
Hierro has an abrupt coastline, but there also are small coves and natural pools where the transparent waters are perfect for swimming and underwater exploration.
The coastal towns of Timijiraque, La Caleta, and Tamaduste offer ideal conditions for enjoying the sea, particularly Tamaduste with its interesting natural lava pool opening onto the sea.
Hierro, a shield volcano, has had a single historic eruption from the Volcan de Lomo Negro vent in 1793. The eruption lasted about one month and produced lava flows. Carracedo proposed the volcano
has three rift zones and the El Golfo, El Julan, and Las Playas valleys are the result of giant landslides.
One of the most beautiful localities in El Hierro was situated near to the village of Isora. In this locality there are Deroplia hesperus, a species only known from El Hierro.
Adults of this beetle were sitting on Rumex lunaria L. or Artemisia thuscula Cav. at night, or could be found hiding in old pupal cells during the day. Larvae of this species were found in dead twigs of the above mentioned hosts.
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