Montealegre-Z. F, Morris GK. The spiny devil katydids, Panacanthus Walker (Orthoptera: Tettigoniidae): an evolutionary study of acoustic behaviour and morphological traits. Systematic Entomology. 2004;29(1):21 - 57. Available at: http://doi.wiley.com/10.1111/sen.2004.29.issue-1.

Montealegre-Zapata F, Ogden J, Jonsson T, Soulsbury CD. Morphological determinants of carrier frequency signal in katydids (Orthoptera): a comparative analysis using biophysical evidence. Journal of Evolutionary Biology. 2017. Available at: http://doi.wiley.com/10.1111/jeb.13179.