@article {47332,
	title = {Clinal variation explains taxonomic discrepancy in the calling songs of shield-back katydids (Orthoptera: Tettigoniidae: Tettigoniinae: Aglaothorax)},
	journal = {Biological Journal of the Linnean Society},
	volume = {101},
	year = {2010},
	month = {Jan-12-2010},
	pages = {910 - 921},
	abstract = {<p>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.</p>
},
	keywords = {bioacoustics, California, cline, discriminant analysis, speciation, transverse ranges},
	doi = {10.1111/bij.2010.101.issue-410.1111/j.1095-8312.2010.01532.x},
	url = {http://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.x},
	author = {Jeffrey A. Cole}
}
@article {17268,
	title = {A new species of Megatibicen endemic to Mescalero-Monahans shinnery sands (Hemiptera: Auchenorrhyncha: Cicadidae)},
	journal = {Zootaxa},
	volume = {4236},
	year = {2017},
	month = {Nov-02-2018},
	pages = {553},
	abstract = {<p>Megatibicen harenosus sp. n. is described from the Mescalero-Monahans shinnery sands of New Mexico and Texas, U.S.A. The new species is diagnosed from similar species, especially M. tremulus which it resembles closely, by male genital morphology, color pattern, calling song, and ecology. Seven characters from the male calling song are described from analysis of field recordings, of which all four temporal song characters are significantly different from M. tremulus. With one of the most southwestern distribution of any Megatibicen species, M. harenosus is a new addition to the rich, endemic, and understudied Mescalero-Monahans shinnery sands biota. The possibility that M. harenosus and M. tremulus are sister species is raised. The ecological, biological, and evolutionary species concepts support species status for M. harenosus, and an hypothesis of peripatric speciation in peripheral isolation is advanced.</p>
},
	keywords = {bioacoustics, endemic, evolutionary species concept, peripatric speciation},
	issn = {1175-5326},
	doi = {10.11646/zootaxa.4236.310.11646/zootaxa.4236.3.9},
	url = {http://biotaxa.org/Zootaxa/issue/view/zootaxa.4236.3},
	author = {Jeffrey A. Cole}
}
