Otacilia tham and O. saszykaska from Laos, the first two cave-dwelling guardstone spiders

The first ever cave-dwelling Phrurolithidae were found in Laos in limestone caves. One was blind, the other one showed reduction of eyes and pigments.

https://www.researchgate.net/publication/366465069_Otacilia_Laos_2_new_species_cave_Jaeger_2022