What are small insects in the high desert?

Question

they look like small fleas, and jump similar but they thrive on the desert. Specially under rocks

Answer 1

There are a number of primitive wingless insects that are small and little seen.  Some like springtails can occur in the millions.  There are others such as bristletails that are a little larger.  These insects are less well known and belong to the subclass Apterygota.  Many jump like a flea.

http://bugguide.net/index.php?q=search&k...

There is one in these pictures with an ant next to it to give you an idea of their size.

http://bugguide.net/node/view/43869#4110...

Or a jumping bristletail.

Answer 2

Hmm. Given that they live under rocks, they might as well be land shrimps. However, they like humid weather. Was it raining? I highly doubt that they are even small rock grasshoppers because rock grasshoppers hide on rocks but not under.

http://www.sebastianswan.org.uk/science/...

Here is a pic of a rock hopper:

http://pbc.codehog.co.uk/bhs/pics/200505...

I dunno for sure tho.