I pulled off of Silver Creek a couple of nights ago around 10 pm and there were a ton of Tricos and Callibaetis in the grass and when I stopped near the Creek they were attracted to my car headlights. The two images below were taken well after dark of callibaetis on or near my headlights.
Camera: Nikon D3s
Lens: Nikon Micro ƒ2.8 105 mm