I’m glad you provide a link to a larger size. The small size fooled me into thinking these might be snails on a sidewalk! But the larger size straightened me out. I like your capture, except I’d like to see all of the shadows of the two electrical gizmos. They remind me of aliens with their antennas, which is probably what gave you the same idea.
Steven's blog of photographs 
I’m glad you provide a link to a larger size. The small size fooled me into thinking these might be snails on a sidewalk! But the larger size straightened me out. I like your capture, except I’d like to see all of the shadows of the two electrical gizmos. They remind me of aliens with their antennas, which is probably what gave you the same idea.