Vector-borne diseases transmitted by invasive mosquito vectors, such as dengue- and chikungunya fever, are emerging threats to Europe. To provide Member States with evidence-based guidance on adapted surveillance methods, ECDC is developing guidelines for the surveillance of the main invasive mosquito species in Europe. On 8 and 9 December 2011, ECDC organised an expert meeting to review the draft guidelines with a panel of experts and potential users from public health authorities from across the EU. This report contains the main suggestions and recommendations of the meeting to improve the guidelines.