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Front matter
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Table of Contents
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Article
On the identity of Paracacoxenus kaszabi Okada, with the formal description of a new closely related species (Diptera, Drosophilidae)
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1
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Book review
Die Libellen Europas : alle Arten von den Azoren bis zum Ural im Porträt [Wildermuth, H.; Martens, A.]
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21
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Article
The first discovery of the genus Pseudoalaocybites Osella, 1980 from Ecquador, with a description of a new species in an alpine ecosystem (Coleoptera, Curculionidae: Molytinae)
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23
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Article
Nebria (Pseudonebriola) tsambagarav sp. nov., a new alpine species from the Mongolian Altai (Coleoptera, Carabidae)
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29
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Article
Integrative revision of the Caryocolum schleichi species group : a striking example of a temporally changing species concept (Lepidoptera, Gelechiidae)
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39
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Article
Key to the Macrophya zhaoae group (Hymenoptera, Tenthredinidae) with description of a new species from China
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65
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Article
Nemapogon helveticola sp. nov. aus der Schweiz (Lepidoptera, Tineidae)
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73
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Article
Annotated checklist of Scolytinae and Platypodinae (Coleoptera, Curculionidae) of Switzerland
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81
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Article
Rétablissement des communautés de libellules (Odonata) dans les tourbières du Jura neuchâtelois (Suisse)
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99
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Article
Création de nouvelles prairies dans le réseau écologique "La Frontière" VD et effets sur les orthoptères (Insecta Orthoptera) = Creation of new grasslands within the ecological network "La frontière" (Western Switzerland) and effects on orthopterans (Insecta Orthoptera)
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117
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Article
A new species of Cincticostella (Ephemeroptera, Ephemerellidae) from China
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129
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Article
Owlflies from Jordan (Neuroptera, Ascalaphidae)
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139
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Article
First record of Erasmoneura vulnerata Fitch, 1851 (Hemiptera, Cicadellidae, Typhlocybinae) in Switzerland
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151
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Article
Unique nesting biology of Osmia (Melanosmia) uncinata, a Palaearctic osmiine bee specialized on thick-barked conifers (Hymenoptera, Megachilidae)
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157
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Article
Two new species of Liodessus Guginot, 1939 diving beetles from Northern Peru (Coleoptera, Dytiscidae, Hydroporinae)
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173
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Article
Tracking the spread of the northern bark beetle (Ips duplicatus [Sahlb.]) in Europe and first records from Switzerland and Liechtenstein
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179
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Obituary
In Memoriam Professor Willi Sauter (25. Juli 1928-3. September 2020)
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185
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Rubric
Protokoll der Jahresversammlung der Schweizerischen Entomologischen Gesellschaft vom 6. und 7. März an Naturhistorischen Museum Basel
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189
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Back matter
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