P043:Female; P200: Male (23/05/2009);
P031: dark (melanotum) form (12/05/2010)
No interactions present.
The upper two photos are both males (look closely at the left hand one and you can (just about) make out the secondary genitalia under abdomen segment 2 + the claspers at the end of the abdomen are those of a male.
Females also have more black on the abdomen (not normally as much as the melanotum form though!
Lat/Lng: 51.43372, -2.76236
OS grid ref: ST471707