Perhaps not my greatest pic, but sort of nice to see this little guy in Lake Merritt.
Cohen and Carleton refer to this as the Lake Merritt Cuthona, which is cool but slightly misleading, since it is thought to be introduced, even though its native range is unknown. We found a couple of them among the mussels and anemones on the shadier sides of the docks by the Lake Merritt boathouse. This one was 7-10 mm. Many thanks to Robin for leading me on the path to finding these guys.
I'm assuming this was a tunicate. Growing on a mussel shell.
A much smaller individual, 3-5 mm.
Attracted to light in apartment and let itself in through the open window
2 squirrels fighting above walkway; a tuft of fur fell at my feet.
larva...clearly ; )
thought this was a wasp until i looked closer. amazing!
Planted tree, leaves smell like grapefruit
Indeed on milkweed.
About 1/2", on Urosalpinx cinerea (Eastern Oyster Drill).