Accepted by I. Ribera: 8 Oct. 2009; published: 22 Dec. 2009 ZOOTAXA ISSN 1175-5326 (print edition) ISSN 1175-5334 (online edition) Copyright © 2009 · Magnolia Press Zootaxa 2317: 1–102 (2009) www.mapress.com/ zootaxa/ Monograph ZOOTAXA Larval morphology of Rhantus Dejean, 1833 (Coleoptera: Dytiscidae: Colymbetinae): descriptions of 22 species and phylogenetic considerations YVES ALARIE 1 , MARIANO C. MICHAT 2 , ANDERS N. NILSSON 3 , MIGUEL ARCHANGELSKY 4 & LARS HENDRICH 5 1 Department of Biology, Laurentian University, Ramsey Lake Road, Sudbury, Ontario, Canada. E-mail: yalarie@laurentian.ca 2 CONICET Laboratorio de Entomología, DBBE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires. Av. Int. Güiraldes s/n, Ciudad Universitaria, 1428 Buenos Aires, Argentina. E-mail: marianoide@gmail.com 3 Department of Ecology and Environmental Science, University of Umeå, Sweden. E-mail: anders.nilsson@emg.umu.se 4 CONICET-LIESA, Laboratorio de Investigaciones en Ecología y Sistemática Animal, Universidad Nacional de La Patagonia, San Juan Bosco, Sarmiento 849, 9200, Esquel, Chubut, Argentina. E-mail: hydrophiloidea@yahoo.com.ar 5 Zoologische Staatssammlung, Münchhausenstraße 21, D - 81247 München, Germany. E-mail: hendrich1@aol.com Magnolia Press Auckland, New Zealand 2317 TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited.