Immature stages and male adult of Leucotabanus albovarius (Walker, 1854) are described and figured for the first time. The larva was found in rotten wood of the palm Bactris gasipaes Kunth (Arecaceae) near Manaus. Differential diagnoses of the known immatures of Leucotabanus Lutz are presented.
Brachycera; Brazil; horsefly; taxonomy