Acknowledgment
A special thank goes to our webmasters: Marcos Roa, Paraguay, who oversaw the page in the initial phase, and Ariel Estigarribia, Paraguay, who took over the thankless (and unpaid) job.
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For the study of whole families and identification of their species is our heartfelt thanks to: Federico Agrain, Argentina, (Chrysomelidae, Clytrini), Gabriel Alziar, France, (Curculionidae), Alexandre Anichtchenko, Latvia, (Carabidae), Andre Aptroot, Netherlands, (Lichenes), Kurt Arnold, Germany, (Pentatomidae), Angelico Asenjo, Brazil (Staphylinidae), Manuel Baena, Spain, (Reduviidae), Hernan Beccacece, Argentina, (Arctiidae ), Alicia Bohren, Argentina, (Bignoniaceae), Lech Borowiec, Poland, (Chrysomelidae: Cassidinae), Gil Bretschneider, Germany, (Buprestidae), Paula Campos, Argentina, (Meloidae), Raul Enrique Diaz Dominguez, Paraguay, (Lichenes), Christophe Faynel, France, (Lycaenidae), Oscar Feltes, Paraguay, (Euphorbiaceae), David Ferguson, USA, (Talinaceae), Cees Gielis, Netherlands, (Pterophoridae), Guillermo Gonzalez, Chile, (Coccinellidae), Hector Keller, Argentina, (Apocynaceae, Malvaceae), Gunther Köhler, Germany, (Reptilia, Amphibia), Ole Mehl (†), Denmark, (Cerambycidae), Jose Mermudes, Brazil (Anthribidae), Rüdiger Peschel, Germany, (Histeridae), Joachim Rheinheimer, Germany, (Curculionidae), Mathias Riedel, Germany, (Ichneumonidae, Braconidae), Sergio Riese, Italy (Elateridae), Jacques Rifkind, USA, (Cleridae), Wolfgang Schawaller, Germany, (Tenebrionidae) and Kai Schütte, Germany, (Mantodea), Floyd Shockley, USA, (Endomychidae), Gerhard Tarmann, Austria, (Zygaenidae), Paul Thiaucourt, France, (Notodontidae).
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We also thank all those who helped us with identification, literature, photographs and other things: Carlos Aguilar, Paraguay, (Scarabaeidae), Jorge Almeida, Portugal, (Diptera), Eric Arndt, Germany, (Carabidae), J. Manuel Ayala, Venezuela, (Triatominae), Daniel Bauer, Germany (Reduviidae), Keith Bayless, USA, (Diptera), Paul Berry, USA (Euphorbiaceae), Paul Beuk, Netherlands (Diptera), Andreas Bischof, Germany, (Noctuidae), Oscar Bordon, Paraguay, (fotos Aves), Bram Breure, Netherlands, (Gastropoda), Marcelo Britto, Brazil (Pisces), Ernst Brockmann, Germany, (Hesperiidae), Jean-Marie Cadiou, France, (Sphingidae), Curtis Callaghan, Colombia, (Riodinidae), Leandro Castillo, Argentina, (Fotos), Luis Chong, Taiwan, (Mamifera), Joe Cicero, USA, (Lampyridae), John Ciseski, USA, (Saturniidae), Chris Conlan, USA, (Saturniidae), Oskar Conle, Germany, (Phasmida), Carl Cook, USA, (Odonata), Cesar Crash, Brazil, (Homoptera, Heteroptera), Stephen Cresswell, USA, (Diptera), Gabriela Cuezzo, Argentina, (Gastropoda), Osvaldo Di Iorio, Argentina, (Gymnetini), Sigrid Drechsel, Paraguay, (Amphibia, Reptilia), DTP-Desarrollo Turistico Paraguayo, (logistic),Lars Einfeld, Germany, (Mantodea), Carlos Figueiredo, Brazil (Pisces), Jorge Frana, Argentina, (Diptera), Rainer Galunder, Germany, (Phasmida), Bolivar Garcet-Barrett, Brazil (Hymenoptera), Mirtha Garcia, Paraguay, (photos), Kim Garwood, USA (Lepidoptera), François Genier, Canada, (literature), Goemans Geert, USA, (Cicadidae), Joachim Grad, Germany, (Pisces, fotos), Carlos Grassini, Argentina (Colubridae), Jose Grassia, Argentina, (Arecaceae), Jean Haxaire, France, (Sphingidae), Daniel Herbin, France,(Apatelodidae), Tony Irwin, England, (Diptera), Manfred Jäch, Austria (Coleoptera), Stefan Kager, Germany, (Saturniidae), Hector Keller, Argentina, (Plantae), Gabor Keresztes, Hungary, (Diptera), Erich Kirschenhofer, Austria, (Carabidae), Armin Korell, Germany, (Carabidae), John Koschalka, Paraguay, (Araneae), Stanislav Krejcik, Czech Republic, (Meloidae), Michel Laguerre, France, (Arctiidae), Esteban Lavilla, Argentina, (Amphibia), Rudolf Lampe, Germany, (Saturniidae), Richard Lindstrom, USA (Hesperiidae), Eduardo Lucof, Brazil (Lepidoptera), Carlos Marzano, Argentina (Insecta), Bill Mauffray, USA, (Odonata), Carlos Alonso Maya Lastra, Colombia, (Euphorbiaceae), Frank Meister, Germany, (Saturniidae), Carlos Mielke, Brazil (Saturniidae), Miguel Angel Moron, Mexico, (Scarabaeidae: Cetoniinae), Joaquin Movia, Paraguay, (photos), Roger Naviaux, France, (Carabidae: Cicindelinae), “Nosferatumyia”, Ukraine, (Diptera), Rogelio Ocampos, Paraguay, (photos), Bill Oehlke, Canada, (Saturniidae), Frank Pelsue, USA, (Curculionidae), Gerard Pennard, Netherlands, (Syrphidae), Abel Gonzalez Perez, Brazil (Opiliones), Walter Pfliegler, Hungary, (Diptera), Volker Puthz, Germany, (Staphylinidae), Luigi Racheli, Italy (Saturniidae), Hans Riefenstahl, Germany, (Sesiidae), Sergio Rios, Paraguay, (Lepidoptera), Raul Rivarola, Paraguay, (Plantae), Oscar Rodriguez, Paraguay, (photos, logistics), Gustavo Ruiz, Brazil (Salticidae), Humberto Sanchez, Paraguay, (photos ), Jorge Sarubbi Künzle, Paraguay, (fotos Aves), Hirofumi Sawada, Japan, (Cicindelinae), Matthias Schöller, Germany, (Chrysomelidae), Paulo Schwirkowski, Brasil, (Lepidoptera), Stanislav Skalicky, Czech Republic, (Heteroceridae), Gustavo Scrocchi, Argentina (Reptilia), Ximena Silva, Paraguay, (Fungi), Otto Skell, Switzerland, (photos), Paul Smith , Paraguay, (local fauna), Antonio Tang, Paraguay, (fotos Aves), Guillermo Tarapow, Paraguay, (fotos), Carlos Valiente, Paraguay, (logistics), Aldo Vega, Paraguay, (foto), Luis Vega, Paraguay, (fotos), Julia Vergara, Argentina, (Opiliones), Benoit Vincent, France, (Arctiidae), Bernhard vanVondel, Netherlands, (Haliplidae), Piotr Wegrzynowicz, Poland, (Bostrichidae, Erotylidae), Jürgen Wiesner, Germany, (Carabidae: Cicindelinae), Kipling Will, USA (Carabidae), Kevin Williams, USA, (DNA Mutillidae), Roman Yakovlev, Russia, (Cossidae), Matthias Zerm, Germany, (DNA Cicindelinae: Megacephalini), Harald Zühlsdorf, Germany (Eumycota).