Nasir Jalili, Miroslava Horniackova, Viktória Hodorová, Jozef Nosek, Ondrej Petruš, Jakub Gecz, Veronika Michalková
Abstract Between 2020 and 2025, during mosquito monitoring conducted in Bratislava, we collected three invasive species in addition to native species: Aedes japonicus (j.) japonicus , Aedes koreicus , and Aedes albopictus . Larvae of Ae. j. japonicus were collected continuously over five consecutive years, from 3 August 2020 to October 2025. Larvae of Ae. albopictus were recorded from April 2023 until late September 2025. In addition, both larvae and adults of Ae. j. japonicus were sampled throughout the 2020–2025 period, while Ae. koreicus and Ae. albopictus (larvae and adults) were collected between 2023 and 2025, respectively. Eggs, larvae and adults of the invasive mosquito species were collected mainly in major Bratislava cemeteries. The repeated findings of larvae of Ae. j. japonicus , Ae. koreicus , and Ae. albopictus during both spring and autumn suggest that these invasive species are now established in Bratislava and, consequently, in Slovakia.