Spiders seen mating on hill near Arrochar

Spiders seen mating on hill near Arrochar

Observation - Spiders seen mating on hill near Arrochar. Description: 4 male spaiders and 1 female seen together. Males variously engaged in fights. Two spiders seen to mate with the female. Video here: http://www.youtube.com/watch?v=XVURk-NHJZQ&feature=youtu.be Small body. Male black on top, light brown underneath. A

4 male spaiders and 1 female seen together. Males variously engaged in fights. Two spiders seen to mate with the female. Video here:

http://www.youtube.com/watch?v=XVURk-NHJZQ&feature=youtu.be

Small body. Male black on top, light brown underneath. About 3cm across leg-leg.
Female larger. Two tone brown