https://www.minnesotaseasons.com/Insects/predaceous_diving_beetles_Dytiscus.html
Predaceous Diving Beetles (Dytiscus spp.) — Minnesota Seasons
Dytiscus is a genus of large, oval aquatic beetles with streamlined dark bodies, featuring oar-like hind legs fringed with hairs for powerful swimming...
diving beetlespredaceousdytiscussppminnesota
https://datadryad.org/dataset/doi:10.5061/dryad.x0k6djj0c
Dryad | Data: A deep dive into the fossil record of diving beetles (Coleoptera: Dytiscidae):...
the fossil recorddeep divediving beetlesdryaddata