00889nas a2200157 4500008004100000245009500041210006900136260001200205300001200217490000700229520038900236100002200625700002200647700002100669856004100690 1975 eng d00aCalling Songs of Neduba macneilli and N. sierranus (Orthoptera: Tettigoniidae: Decticinae)0 aCalling Songs of Neduba macneilli and N sierranus Orthoptera Tet c12/1975 a229-2340 v833 a

The calling songs of decticines remain largely undescribed. Songs of Neduba macneilli and N. sierranus were recorded and analysed. These species have mirror-image tegmina and individual specimens exhibit reversed wing overlap. Wing symmetry and the elaborate pronotum characteristic of this genus are discussed as adaptations which increase the efficiency of sound radiation.

1 aMorris, Glenn, K.1 aAiken, Ronald, B.1 aKerr, Gordon, E. uhttps://bio.acousti.ca/it/node/5150902113nas a2200145 4500008004100000245013500041210006900176260001600245520156700261100003301828700001901861700002001880700002401900856004301924 2017 eng d00aMorphological determinants of carrier frequency signal in katydids (Orthoptera): a comparative analysis using biophysical evidence0 aMorphological determinants of carrier frequency signal in katydi cApr-09-20183 a

Male katydids produce mating calls by stridulation using specialized structures on the forewings. The right wing (RW) bears a scraper connected to a drum-like cell known as the mirror and a left wing (LW) that overlaps the RW and bears a serrated vein on the ventral side, the stridulatory file. Sound is generated with the scraper sweeping across the file, producing vibrations that are amplified by the mirror. Using this sound generator, katydids exploit a range of song carrier frequencies (CF) unsurpassed by any other insect group, with species singing as low as 600 Hz and others as high as 150 kHz. Sound generator size has been shown to scale negatively with CF, but such observations derive from studies based on few species, without phylogenetic control, and/or using only the RW mirror length. We carried out a phylogenetic comparative analysis involving 94 species of katydids to study the relationship between LW and RW components of the sound generator and the CF of the male's mating call, while taking into account body size and phylogenetic relationships. The results showed that CF negatively scaled with all morphological measures, but was most strongly related to components of the sound generation system (file, LW and RW mirrors). Interestingly, the LW mirror (reduced and non-functional) predicted CF more accurately than the RW mirror, and body size is not a reliable CF predictor. Mathematical models were verified on known species for predicting CF in species for which sound is unknown (e.g. fossils or museum specimens).

1 aMontealegre-Zapata, Fernando1 aOgden, Jessica1 aJonsson, Thorin1 aSoulsbury, Carl, D. uhttp://doi.wiley.com/10.1111/jeb.1317901879nas a2200205 4500008004100000245015300041210006900194260001600263300001400279490000800293520101800301653001701319653001501336653001001351653002601361653001501387653002201402100002201424856022701446 2010 eng d00aClinal variation explains taxonomic discrepancy in the calling songs of shield-back katydids (Orthoptera: Tettigoniidae: Tettigoniinae: Aglaothorax)0 aClinal variation explains taxonomic discrepancy in the calling s cJan-12-2010 a910 - 9210 v1013 a

Understanding the relationship between mating trait evolution and speciation requires data from a variety of taxa. I analysed the calling songs of the shield-back katydid genus Aglaothorax, which represents a little-known lineage of acoustic insects. Field-collected males of all described species and most subspecies were recorded under controlled laboratory conditions. Discriminant analysis was 90.5% successful in separating song types, but the song types thus delineated did not correspond to currently recognized taxa as defined by morphology. The discrepancy is caused by two species, Aglaothorax morsei and Aglaothorax longipennis, the songs of which vary in a cline across the Transverse Ranges and the Los Angeles Basin of southern California. From west to east, pulse rate and duty cycle decrease and interpulse interval increases. Selection for species recognition at a contact zone, sexual selection and interactions between signals and the environment are considered as causes of the cline.

10abioacoustics10aCalifornia10acline10adiscriminant analysis10aspeciation10atransverse ranges1 aCole, Jeffrey, A. uhttp://doi.wiley.com/10.1111/bij.2010.101.issue-4https://academic.oup.com/biolinnean/article-lookup/doi/10.1111/j.1095-8312.2010.01532.xhttps://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8312.2010.01532.x00497nas a2200121 4500008004100000022001500041245013500056210006900191260003800260300001200298100002400310856004100334 2001 eng d a085199408300aCommunication and Reproductive Behaviour in North American Jerusalem Crickets (Stenopelmatus) (Orthoptera: Stenopelmatidae)0 aCommunication and Reproductive Behaviour in North American Jerus aWallingford, United KingdombCABI a351-3751 aWeissman, David, B. uhttps://bio.acousti.ca/it/node/4032200390nas a2200097 4500008004100000245008800041210006900129260003200198100002100230856004100251 1993 eng d00aTettigoniidae of Australia Disc 1. The Austrosaginae, Zaprochilinae and Phasmodinae0 aTettigoniidae of Australia Disc 1 The Austrosaginae Zaprochilina aMelbourne, AustraliabCSIRO1 aRentz, D., C. F. uhttps://bio.acousti.ca/it/node/17122