02006nas a2200205   4500008004100000245009400041210006900135260001000204300001400214490000700228520140900235653001401644653001801658653001301676653001101689653001501700100002101715700001601736856004801752       2006                        eng d00aClose-range acoustic signaling and mate choice in Hawaiian crickets (Gryllidae: Laupala )0 aCloserange acoustic signaling and mate choice in Hawaiian cricke  cApril  a770–7760 v593 aAbstract&nbsp;&nbsp;Evolution of the mate recognition system (MRS) can play a central role in animal speciation. One dramatic consequence of changes in the MRS is the failure of individuals from divergent lineages to successfully court and mate, thereby reducing gene flow between these groups. Here, we test the role of an acoustic mating signal on mate choice in a Hawaiian cricket genus (Gryllidae: Laupala). Speciation in Laupala is proceeding at an extremely rapid rate, apparently driven by divergence in aspects of the mate recognition system, most conspicuously the pulse rate of male calling song. Previous studies demonstrate that females prefer the pulse rate of a conspecific male's song when perceived at long range, in laboratory phonotaxis trials. In this study, we examined mate choice in two species that differ dramatically in pulse rate: Laupala paranigra and Laupala kohalensis. We tested the female's preference in both species for pulse rates at close range, by providing females an opportunity to mate with hybrid males producing a range of intermediate pulse rates. Results of our study demonstrate that while strong behavioral barriers exist between these two species, variation in the pulse rate of male calling song did not predict female mate choice at close range. These results suggest a more complex architecture to mate recognition in Laupala than previously hypothesized.10abehaviour10acommunication10acrickets10ahawaii10aorthoptera1 aMendelson, Tamra1 aShaw, Kerry  uhttp://dx.doi.org/10.1007/s00265-005-0107-7