Is it correct that the smaller of these two is male?
No interactions present.
I did check this out on the internet and the only one that matched was appendiculata.
Yes, the male is the smaller. (Don't know what species they are.)
There is enough detail to take them through the key - flavipalpis.
Lat/Lng: 50.72072, -1.84658
OS grid ref: SZ109912