If you didn't know what you were looking at, I think many people's brains would have a hard time making sense of this image. I took about 30 pictures of this true bug on a pond surface with a reflection of winter trees in the "background." Shown above is the best shot I got. I'm tempted to post another pic under the label
crappy photos.
While
Aquarius remigis (also formerly known under the genus
Gerris) is generally agreed to be the most common water strider in CA and the U.S., I'm hesitant to place a positive ID considering my picture doesn't show enough details, nor did I take the time to physically capture this insect to bring home and examine the relative tarsal and antennal segments under my scope for proper keying.
Powell and Hogue state there are about 10 species of gerrids in CA; indeed,
UC Berkeley's Essig Museum of Entomology lists 12 species in their Heteroptera PDF.