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Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

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Genus Peltodytes

Peltodytes Peltodytes lengi Peltodytes #2 - Peltodytes beetle - Peltodytes Peltodytes callosus? - Peltodytes callosus Peltodytes edentulus Peltodytes Peltodites Beetle - Peltodytes edentulus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Haliplidae (Crawling Water Beetles)
Genus Peltodytes
Synonyms and other taxonomic changes
our spp. are members of the subgen. Neopeltodytes Satô 1963(1)
Explanation of Names
Peltodytes Régimbart 1878
18 spp. in our area(2), ~30 spp. total(3); selected local faunas: 6 spp. in Canada(4), 8 in FL(2), 2 in CA(5), 9 in NH(6), 6 in MI(7)
3-4 mm
adults have two black spots on posterior margin of pronotum (no such spots in Haliplus)(1)
Key to adults by W.U. Brigham
worldwide except Australia and S. America(3); most of NA(1)
usually in dense mats of vegetation and algae along the margins of ponds/lakes or slow-running waters, often in association with Haliplus(2)
adults: year-round; larvae: spring
larvae feed entirely on algae; adults feed on aquatic worms, small crustaceans, hydrozoans, midge eggs, and algae
Life Cycle
overwinters as an adult in permanent standing water
adults come to lights