Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
The Water Beetles of Florida
By Epler J.H.
Florida Department of Environmental Protection. Tallahassee. 414 pp., 2010
Cite: 414519 with citation markup [cite:414519]
Full title: The Water Beetles of Florida - an identification manual for the families Chrysomelidae, Curculionidae, Dryopidae, Dytiscidae, Elmidae, Gyrinidae, Haliplidae, Helophoridae, Hydraenidae, Hydrochidae, Hydrophilidae, Noteridae, Psephenidae, Ptilodactylidae and Scirtidae
Full text (~150MB)
Pages of the PDF:
Key to families: larvae 16 Adults 21 · Chrysomelidae 27 · Curculionidae 55 · Dryopidae 69 · Dytiscidae 75 · Elmidae 195 · Gyrinidae 221 · Haliplidae 289 · Helophoridae 255 · Hydraenidae 257 · Hydrochidae 265 · Hydrophilidae 275 · Noteridae 337 · Psephenidae 353 · Ptilodactylidae 357 · Scirtidae 359 · Checklist 403
[the first edition of the Manual(1) had been extensively cited on guide pages]

alternative URL
the Florida state page starts to load but never finishes, Here's an alternative at Epler's own site: http://johnepler.com/FLWB2010.pdf. Loads very slowly though

Full citation
Epler, J.H. 2010. The Water Beetles of Florida - an identification manual for the families Chrysomelidae, Curculionidae, Dryopidae, Dytiscidae, Elmidae, Gyrinidae, Haliplidae, Helophoridae, Hydraenidae, Hydrochidae, Hydrophilidae, Noteridae, Psephenidae, Ptilodactylidae and Scirtidae. Florida Department of Environmental Protection, Tallahassee, FL. 399 + iv pp.

Awesome!
Thanks for the link v.