Formica accreta, Northern California
I wish I could say I knew what these ants were doing. Hiding from the photographer, perhaps? Formica of the fusca species group are notoriously shy insects, but not all of these ones seemed to be equally spooked.
photo details: Canon MP-E 65mm 1-5x macro lens on a Canon D60.
f/13, 1/200 sec, ISO 100
Twin flash diffused through tracing paper.
Twin flash diffused through tracing paper.
Levels adjusted in Photoshop.
Myrmecos Blog 
I’m not an entomologist or a photographer, but I’m interested in both subjects. I love your blog and its amazing photos!
Perhaps if you have a second you can take a look at the most recent post on my blog and tell me what kind of spider I photographed this morning here in Argentina…