This report concerns the official finding of a 3rd instar larva of Platynota rostrana in the Netherlands on Dracaena marginata bicolor ornamental plants for planting, on 10 June 2015. On 12 June 2015 during a follow-up inspection in total 2 other larvae, one empty pupa and one pupa were found. On 17 June 2015, specialists identified the larva found on 10 June 2015 as Platynota rostrana. Identification of this larva was confirmed both morphologically and by DNA analysis. The identity of the findings on 12 June 2015 was based on morphological criteria as Platynota rostrana, however both larvae and pupa will be reared for the reference collection. The origin of the finding is unknown but could be linked to imports of plants for planting from Costa Rica. The organism is not listed as a harmful organism in the EU Directive 2000/29/EC and is not listed on the EPPO A1 or A2 list. Based on a preliminary risk assessment (see https://www.nvwa.nl/onderwerpen/english/dossier/pest-risk-analysis/quick-scans ) and with reference to article 16.2, statutory measures have been taken in the Netherlands aiming at eradication.