The flies that seem to be everywhere in Juneau these past 3 weeks are March Flies (Family Bibionidae, Genus Bibio), according to Biologist John Hudson of the U.S. Fish and Wildlife Service’s Habitat Restoration division.
The larvae live in rotting wood and the adults are known to swarm. Males have huge compound eyes and the females have small, flat heads. Andy Kline talked to Hudson on Tuesday’s “A Juneau Afternoon” – here’s an excerpt.