Abstract
The fifth insect camp of the Entomological Society of Austria (ESA) was conducted from April 27 to May 2, 2018. Many of the 39 participants were recognized experts on different arthropod groups. Fifty-seven localities within and nearby the Donau-Auen National Park were investigated, and a total of 1265 invertebrate species identified: 8 Collembola, 1 Zygentoma, 19 Odonata, 2 Blattodea, 1 Derma ptera, 9 Ortho ptera, 66 Hetero ptera, 52 Hemi ptera, 2 Neuro ptera, 443 Coleo ptera, 1 Meco ptera, 76 Di ptera, 190 Hymeno ptera, 35 Tricho ptera, 259 Lepidoptera, 11 Diplopoda, 10 Chilopoda, 10 Isopoda, 3 Araneae, 10 Pseudoscorpiones, 2 Opiliones, 5 Acari, 6 Oligochaeta, 3 Bivalvia, and 41 Gastropoda. New to Vienna and Lower Austria were 9 and 7 species, respectively. The rare hoverfly Epistrophe cryptica Doczkal & Schmid, 1994 (Di ptera: Syrphidae) was found in Austria for the first time. One ♀ and one ♂ of the yet undescribed leafhopper Doratura sp. near paludosa (Hemi ptera: Cicadellidae) were collected.