What are these 'trapdoor spiders' spotted around San Diego?

Sometimes mistaken for small tarantulas, ‘trapdoor spiders’ are native to Southern California.

The 5 Biggest Spiders in California - A-Z Animals

Orb Weaver Spiders

Male Trapdoor spiders (poss. new species) near Cresson, Texas - Bugs In The News

California spider hi-res stock photography and images - Alamy

California Trapdoor Spider

Native species spotlight: the California Trapdoor Spider - suburban Adventuress

Spooky-looking 'trapdoor spiders' spotted around San Diego

Redback spider - Wikipedia

California trapdoor spider, Bothriocyrtum californicum

Description of a new trapdoor spider species, Nemesia amicitia spec. nov., from southern Spain, and new information on Nemesia uncinata (Araneae: Mygalomorphae: Nemesiidae)

New Spider Species Remind Us Just How Much We Don't Know About the Desert, Redefine

Phylogenetic treatment and taxonomic revision of the trapdoor spider genus Aptostichus Simon (Araneae, Mygalomorphae, Euctenizidae)

California trapdoor spider, Bothriocyrtum californicum

Phylogenomic analysis and revised classification of atypoid mygalomorph spiders (Araneae, Mygalomorphae), with notes on arachnid ultraconserved element loci [PeerJ]

Scientists discovered a super-sized trapdoor spider that is haunting my nightmares