Tibicen duryi (Trio 2 Females & 1 Male)
J. Davis Co., Limpia Canyon (June 1999)

These cicadas have an affinity for higher altitude Pine forests and can be quite common. They are relatively weak fliers for a Tibicen species and easily picked up with little or any resistance or effort to fly off.

For details, refer to the following link:
http://bugguide.net/node/view/133207