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Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

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TaxonomyBrowse
Info
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Genus Hygrotus

Predacious Diving Beetle - Hygrotus sayi Predaceous Diving Beetle - Hygrotus sayi Predaceous Diving Beetle - Hygrotus sayi Diver #1 - Hygrotus sayi Hygrotus sayi Dytiscid - Hygrotus sayi Predaceous Diving Beetle - Hygrotus sayi Dytiscidae - Hygrotus sayi
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Hydroporinae
Tribe Hydroporini
Genus Hygrotus
Explanation of Names
Hygrotus Stephens 1828
Numbers
~40 spp. in our area (38-43, depending on source)(1)(2)
Identification
"Epipleuron with a transverse carina at humeral angle" (ref. Am. Beetles), which you can see as "the raised line" on the elytra "shoulders" in this ventral image . This characteristic separates Hygrotus from the big genus Hydroporus.
Works Cited
1.The Water Beetles of Florida
Epler J.H. 2010. Florida Department of Environmental Protection. Tallahassee. 414 pp.
2.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.