FIRST REPORT OF ACASIS APPENSATA (EVERSMANN, 1842) IN SERBIA WITH AN EXAMINATION OF THE GENUS ACASIS DUPONCHEL, 1845 (LEPIDOPTERA: GEOMETRIDAE) ON THE BALKAN PENINSULA

Acasis appensata (Eversmann, 1842) (Lepidoptera, Geometridae) is reported in Serbia for the first time. The status on the Balkan Peninsula of the two Western Palaearctic species of Acasis Duponchel, 1845 is discussed. The localized distribution pattern of both A. appensata and A. viretata (Hubner, 1799) is probably genuine, though both species may be significantly under-recorded for want of adequate field workers in the region.