Orbweaver Spiders are in the Arachnids (Arachnida) Class. Spiders are not insects, they are in the Arachnids. Arachnids are joint-legged invertebrate animals (Arthropods) that have 2 body segments, the cephalothorax and the abdomen, and 8 legs. Arachnida includes, among others, spiders, scorpions, ticks, mites, pseudoscorpions, harvestmen, camel spiders, whip spiders and vinegaroons.
Field Guide to Spiders of California and the Pacific Coast States, RJ Adams and Tim Manolis, 2014, pp. 3-8.
Field Guide to California Insects, by Kip Will, J. Gross, D. Rubinoff , J. Powell, 2nd ed., 2020
BugGuide: Arthropods: Photos of Insects, Spiders & Their Kin (US & Canada), clickable categories or use search bar (scientific name): https://bugguide.net/node/view/3/bgpage
Field Guide to Spiders of California and the Pacific Coast States, RJ Adams and Tim Manolis, 2014
Spiders in Your Neighborhood: A Field Guide, Revised and Expanded Paperback, 2022, Patrick Stadille
Spider Eye Arrangements (for each family) Lynette Elliott: https://bugguide.net/node/view/84423
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NOT
Phanias albeolus is a member of Typical Jumping Spiders, Subfamily Salticinae.
Link to confirmed Phanias albeolus observation nearby: https://www.inaturalist.org/observations/35729483
You can’t see it very well in the photo but the spider has white fuzzy pedipalps. I keep seeing tons of these guys and wonder what they are!