The Asian bush mosquito (Aedes japonicus japonicus Theobald, 1901), a mosquito native to temperate East Asia, is a competent vector of arboviruses like West Nile virus, Japanese encephalitis virus and La Crosse virus under laboratory conditions [23–25]. The species is non-native in, among other countries, Germany where it was found for the first time in 2008 in the south-west . Subsequently, the Asian bush mosquito has quickly expanded its range to parts of southern [27–29], western  and northern [31, 32] Germany. Knowledge of the temperature tolerance of this species is thus important for the development of epidemiological, phenological or population dynamic models to predict the further faith of these invasive populations.