These are really neat beetles which have sickle shaped mandibles and live in open habitats. They reside mainly in California, but there also have been sightings of this insect in southwest Oregon.
The California Night-stalking Tiger Beetle inhabits areas between meadows and forests where there are an abundance of pine trees.
This is a carnivorous beetle both during the larval and adult stages of development. Larva wait near the entrance of the burrow for passing organisms and quickly grab prey and drag it back into the burrow.
Adults are mainly nocturnal and roam about during cloudy days or night in search of prey, which is mostly insects. Their diet depends heavily upon what organisms are available; they are rather opportunistic.
Although fast-moving like the Six-spotted Tiger Beetle from my home state of Ohio, this species is unable to fly. I’ve been glad to come across this intriguing creature on my last two visits to California.