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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

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TaxonomyBrowse
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Genus Thermonectus

Sunburst diving beetle - Thermonectus marmoratus Beetle ID? Thermonectus - Thermonectus nigrofasciatus Dytiscidae -? - Thermonectus nigrofasciatus - male Thermonectus basillaris (Harris)  - Thermonectus basillaris - male What Species? - Thermonectus nigrofasciatus Predaceous Diving Beetle - Thermonectus basillaris Sunburst Diving Beetle (Thermonectus marmoratus) - Thermonectus marmoratus Thermonectus nigrofasciatus
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 Dytiscinae
Tribe Aciliini
Genus Thermonectus
Explanation of Names
Thermonectus
Numbers
6 spp. in our area, ~20 total1(1)
Size
7.5-14 mm(2)
Identification
Metatibal spurs each with apex finely emarginate (Aciliini), further, elytron densely punctate but punctures fine and inconspiciuous, AND mesofemur with hind margin setae longer than width of femur(3)
Range
New World, mainly warm temperate to tropical; T. basilaris strays as far north as so. ON(2)
Habitat
Mostly in ponds, both permanent and vernal; 2 spp. in desert streams; come to lights(2)
Life Cycle
adults reported to overwinter on land, breeding occurs in late spring to early summer, larva develop and mature quickly over the summer, especially in desert regions(2). Newly emerged adults disperse to overwintering sites in late summer and into the fall.
Works Cited
1.The Water Beetles of Florida
Epler J.H. 2010. Florida Department of Environmental Protection. Tallahassee. 414 pp.
2.Predaceous Diving Beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska
D.J. Larson, Y. Alarie, and R.E. Roughley. 2001. NRC 43253.
3.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.