Black bee with legs absolutely covered in pollen, long projecting tongue. On Corydalis solida 'Bulbosa'.
No interactions present.
The only other all black early flying female Anthophora is the incredibly rare A retusa, but that's long gone from Kent.
Lat/Lng: 51.2226, 0.3292
OS grid ref: TQ627496
On Corydalis between Japanese Garden and wooden balls feature.