I was trying to get a shot that showed the furca, after trying to explain to a friend why they're called springtails. I am in awe of Scott Justis, Tom Murray, and others after seeing first hand how hard it is to photograph these guys.

Is there a view I could add (at this resolution) that would allow for a species level ID?

we need to see the chaetotaxy (distribution of setae on the body) in detail (and in focus). To start we need to see the anal spines (size and placement on pailla or not) (dorsal and lateral aspect). A dorsal aspect shot of the cephalic chaetotaxy might help as a short cut to test the nivicola species-group: the setae just above the eyepatches should be in focus as we need to count them. A 1+1 count is typical for the nivicola group. If so, we need to check the chaetotaxy on the 4th abdominal segment (dorsal and lateral aspect).
So to ID Hypogastrura at species level it will require several shots from different angles with different body parts in focus. But it is possible :-)

Not exactly a sharp image, but I wonder if you can see the setae well enough on this image of the head? If not, we'll probably have to settle for genus on this one. None of the images seem to show anal spines. I don't know if that's because they're too small or because I didn't get a shot at the right angle.

most Collembola have them. A fork like appendage attached to the underside of the abdomen which is deployed in a spring loaded fashion. It allows them to escape danger by jumping a good distance.

Harsi Parker sent me this link to a nice vid which shows how they escape...

http://www.youtube.com/watch?v=jWjmQ1s8DOY&feature=related

I love that documentary (so does Harsi)! I guess it's just been a long time since I've seen the whole thing. Thank you for the info... (hopefully I'll remember the furca next time). :)