To hear a singing male Pine Tree Cricke t- O. pini, go to:    http://www.youtube.com/watch?v=Rzbz0Ix8g7A

To hear a singing male Black-horned Tree Cricket - O. nigricornis, go to:      http://www.youtube.com/watch?v=HJbG133FAhA

To hear a singing male Snowy Tree Cricket - O. fultoni, go to:                      http://www.youtube.com/watch?v=2Hq9H-xQlr8  

To hear a singing male Narrow-winged Tree Cricket - O. niveus, go to: http://www.youtube.com/watchv=fHOMRSVA3yE                                                                                            

To hear a singing male Davis' Tree Cricket - O. exclamationis, go to:       http://www.youtube.com/watch?v=kX6JVLwr-nI

To hear a singing male Two-spotted Tree Cricket - N. bipunctata, go to:         http://www.youtube.com/watch?v=6jN6IQcq0f8     

To hear a singing male Forbes' Tree Cricket - O. forbesi, go to:                      http://www.youtube.com/watch?v=Rzbz0Ix8g7A 

To hear a singing Four-spotted Tree Cricket - O. quadripunctatus, go to:                :                                     http://www.youtube.com/watch?v=kX6JVLwr-nI