All icons are from PhyloPic.org. Mantoida nitida Newman, license at http://creativecommons.org/publicdomain/mark/1.0/. Petrobius brevistylis Carpenter by Birgit Lang, Somatochlora tenebrosa Say by Gareth Monger, Palomena prasina (L.) by Dave Angelini, and Trachypachus gibbsii Leconte by T. Michael Keesey and Yves Bousquet, license at http://creativecommons.org/licenses/by/3.0/.