Mcatee-1922
Guides
Bibio holtii
Bibio holtii is a species of March fly described by McAtee in 1922. It belongs to the family Bibionidae, a group characterized by males with large holoptic eyes and females with small heads relative to body size. The species exhibits a Holarctic distribution pattern, occurring across the northern hemisphere. Like other Bibio species, adults are typically active in spring and form conspicuous swarms.