Fungus Gnat Larvae (Sciaridae) Swarming Behavior

These larvae were climbing the trunk of a Basswood Tree (up is to the left in this clip).  Photographed at the Turtle River State Park, North Dakota (23 June 2011).  Thank you to Charley Eiseman (@Bugguide.net) for identifying these specimens!  Go here to learn more about this family:http://bugguide.net/node/view/7014

• #pets_animals
• #fungus_gnat
• #larvae
• #sciaridae
• #behavior
• #turtle_river_state_park
• #north_dakota
• #bugguidenet