The Arthropod Fauna of Oak (Quercus spp., Fagaceae) Canopies in Norway

(1) We document the invertebrate fauna collected from 24 oak canopies in east and west Norway as a contribution to Norwegian Biodiversity Information Centre’s ‘The Taxonomy Initiative’. (2) A snap-shot inventory of was recorded by means emitting mist natural pyrethrum into at night using petrol-driven fogger collecting specimens butterfly nets spread on ground under canopy. (3) Almost entire catch more than 6800 identified 722 species. Out 92 species new fauna, 21 were science and, additionally, 15 Nordic fauna. Diptera alone constituted nearly half represented, with 61 records (18 species). Additionally, Hymenoptera (one species), six oribatid mites (two species) one Thysanoptera (4) Our study emphasizes importance tree habitat both for specific occasional visitors, it demonstrates that canopy fogging technique is an efficient way find ‘hidden fauna’ forests. The low number red listed found reflects how poor insect still studied. Moreover, implication IUCN list criteria newly described or observed discussed.