DAILY ACTIVITY OF THE HORSE FLIES (DIPTERA: TABANIDAE) IN THE CENTRAL BALKAN MOUNTAINS, BULGARIA

Abstract

A study was conducted on the dynamics of tabanids daily activity in the Central Balkan Mountains in the 2011-2013 period. Tabanids have been found to fly 11 hours a day, with a peak in activity around 11:00. Their mass activation is in the temperature range 18-23°С and at 26°С maximum activity has been reported. In the present study a new, minimum temperature threshold for activation of T. quatuornоtatus Mg. in Bulgaria was registered (13°С).