(formerly called Terentula kochii)
Family - Lycosidae
Genus - Alopecosa
This is a very common wolf spider in California. These spiders make shallow holes under rocks or logs. Wolf spiders are not exactly harmless because they will bite if provoked. But as far as spiders go, they are good to have in your world. They consume many insect pests that would otherwise harm your environment or home. And they are a rather docile spider and fun to observe.
The males are one-third smaller than the females, having
more hairs on the abdomen and darker markings.