|April gathering of the Water Boatpeople|
|Sun + dark bodies = melt|
Most Water Boatmen (and Boatwomen) overwinter as adults and mate in the spring. Here in Alberta you can find clusters of them melting out of lake ice in late spring (these shots are from April). Their dark bodies warm and melt the ice around them, presumably giving them an advantage in finding the first mates. These bugs have been to BugGuide, but are still unidentified beyond family. A tough, but interesting group.