Notnops calderoni is a four-eyed spider species from Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

. Males are about 2mm, females almost 3mm.

Name

The genus name is a pun on the fact that there are no caponiid

Caponiidae

Spiders of the ecribellate haplogyne family Caponiidae are unusual in that most species have only two eyes, which is unheard of in other spiders. Other species have four, six or eight eyes...

 spiders of the subfamily Nopinae (named after the genus Nops) in Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

. Named in the same spirit are the Taintnops (It ain't Nops) and the Tisentnops (This ain't Nops) genera of spiders.
The species name is in honor of Chilean arachnologist Raúl Calderón.