Soil-decomposer
Guides
Bibio albipennis
White-winged March Fly
Bibio albipennis, the White-winged March Fly, is a species of march fly in the family Bibionidae native to North America. Adults are most commonly observed in spring, with males forming conspicuous swarms to attract mates. The species is widespread across the continent and is one of approximately 37 currently recognized Bibio species north of Mexico. Like other bibionids, it plays a role in nutrient cycling through larval feeding on decaying organic matter.
Bibio lanigerus
Shaggy St Mark's Fly
Bibio lanigerus, commonly known as the Shaggy St Mark's Fly, is a species of march fly in the family Bibionidae. It occurs across the Palearctic region, with confirmed records from Belgium and other parts of Europe. As with other Bibio species, adults emerge in spring and males form swarming aggregations to attract mates.
Bibio necotus
Bibio necotus is a species of march fly in the family Bibionidae, first described by Hardy in 1937. Like other members of the genus Bibio, adults are medium-sized flies that emerge in spring and often form conspicuous mating swarms. Males possess large, holoptic compound eyes that meet at the top of the head, while females have disproportionately small heads. The species is part of a diverse North American fauna of approximately 37 currently recognized Bibio species, many of which were historically difficult to distinguish based on external characters alone.