Saw three on lupines .
Found in gap among coastal shrubland .
This was at a marsh edge in full sun .
Seven adults observed. Docent said this area is usually home to a colony of about 200.
Could be Castilleja affinis ssp. Neglecta
These guys live among the rocks along brackish estuary. Largest have about 4 inch wide carapace.
Seen along gray trail on cattle ranch land in Point Reyes.
Seen at dusk in brackish water. S/he caught a fish and took it over to the bank to eat.
Many shells in muddy banks of brackish estuary at low tide.
Fleshy red stem. Roots in fresh water seep.
Helminthoglypta arrosa form rubicunda
This North Bay form of H. arrosa looks somewhat like H. exarata. It is more squat and reddish in coloration than the larger, lighter form of H. arrosa which shares its habitat. Both forms are found at this site but don't seem to interbreed.
I've been referring to this form as rubicunda based on older literature
Helminthoglypta arrosa (W. G. Binney, 1855)
Interesting form of H. arrosa which resembles H. expansilabris somewhat with the more elevated spire, inflated body and lighter color.
This colony was observed living in conjunction with another form of H. arrosa at the same site with no apparent intermediate forms.