Supplementary Table 2.  Measurements of primary sound frequency ranges for several Neotibicen species commonly found in sympatry in the ,,,,,,,
eastern United States.  Data are taken from the first song phrase on the tracks found at www.insectsingers.com.  All values are in Hz. ,,,,,,,
,,,,,,,
"Shown are the frequency of maximum sound amplitude (peak frequency), the frequency values at which sound amplitude drops 20dB from its maximum",,,,,,,
"above and below the peak frequency, and the midpoint of the range defined by the -20dB thresholds.",,,,,,,
"These species are (in combinations) found in sympatry in the eastern United States (see Sanborn and Phillips 2013), most notably",,,,,,,
"Neotibicen linnei, N. lyricen, N. pruinosus/winnemanna, and N. tibicen.",,,,,,,
,,,,,,,
,,Peak,-20dB,-20dB,Midpoint,,
Species,,frequency,below peak,above peak,frequency,,Track ID
,,,,,,,
canicularis,,7952,5606,9364,7485,,03.US.NJ.BCR.C25
linnei,,6938,3593,9627,6610,,06.US.MD.HOL.T02
lyricen lyricen,,4881,2689,9266,5978,,06.US.MS.SCE.T02
pruinosus,,4339,2757,7684,5221,,08.US.MS.YAX.T04
robinsonianus,,6011,3186,9266,6226,,07.US.VA.BOY.T06
superbus,,4672,1931,11129,6530,,04.US.TX.LWI.C23
tibicen tibicen,,4791,1921,8316,5119,,05.US.MD.MIE.T03
winnemanna,,5808,2734,9107,5921,,07.US.VA.BOY.T08