NDFF Beetles of the Dutch Habitats Directive

Only 3 of the beetle species featured in the Habitats Directive actually occur in the Netherlands. Observations of the Graphoderus bilineatus and the Dytiscus latissimus are exclusively recorded on a professional basis by experts. Individual observations of voluntary observers are not currently being reported. If this changes in the future, an expert could check/validate both species from photographic evidence. Observations of the Lucanus cervus are collected by volunteers. A validation protocol has been established for this purpose. Dataset available via https://www.ndff.nl/english / [e-mail] Positive observations without zeros: Lucanus cervus 2440 records (March 2018) Dytiscus latissimus 48 records (March 2018) Hydrophilus piceus 10 records (March 2018) Cerambyx cerdo 14 records (March 2018) Prionus coriarius 13 records (March 2018) Oryctes nasicornis 58 records (March 2018) https://www.ndff.nl/overdendff/validatie/protocollen/4-001-kevers-van-de-habitatrichtlijn/