Family: Hydropsychidae
Subfamily: Macronematinae
Tribe: Polymorphanisini
In family Hydropsychidae the larvae construct a cup-shaped net, with its mouth facing upstream so that it filters prey items from the water. The larvae are often at rest at an underwater lair near the net.
Photo location: Rewa village, at confluence of the Rewa and Rupununi Rivers, Guyana.
Determined by Dr. Ralph W. Holzenthal, University of Minnesota.
American Insects site