In the framework of the LIFE CONOPS project (www.conops.gr ), the Romagna Health District in collaboration with CAA (www.caa.it/entomology ) carried out an active surveillance of IMS risk introduction in the harbour area of Ravenna. From May 31st to October 5th, 2017, 20 CO2 traps together with the IMS MD (Monitoring Device) prototype were activated in the harbour area.
Overall, 12,576 specimens of Culicids (7 species) were collected. Among the species collected, Culex pipiens prevail (51.9%), followed by Aedes caspius (43.2%) and Aedes albopictus (4.3%).
In addition small numbers of Aedes detritus, Coquillettidia richiardii, Anopheles maculipennis s.l. and Culiseta longiareolata were collected. These are indigenous species known in our territory, so even in 2017, the surveillance did not reveal the presence of newly introduced IMS.
Compared to 2016 the number of species decreased from 11 to 7 and we registered a decrease also in the number of total specimens collected (percentage variation compared with 2016, -47% calculated in the same monitoring period, particularly for Cx. pipiens) .