Possible Sea Aster Mining Bee

Possible Sea Aster Mining Bee

Observation - Possible Sea Aster Mining Bee - Global. Description: Bee observed on Sea Aster on the Rope Walk saltmarsh at Brightlingsea Creek, Essex. Seems to fit the descriptions I've found of a solitary mining bee, and so think it must be Colletes Halophilus? The dates are right. In each clump of Sea Aster most flower

Bee observed on Sea Aster on the Rope Walk saltmarsh at Brightlingsea Creek, Essex. Seems to fit the descriptions I've found of a solitary mining bee, and so think it must be Colletes Halophilus? The dates are right. In each clump of Sea Aster most flowers only showed the central yellow part like this, with one or two stems where the flowers were fully open complete with lilac/purple outer petals.