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Superfamily Byrrhoidea - Pill, Water and Toe-winged Beetles

flat larva - Psephenus herricki at least three species Stenelmis #3 - Stenelmis crenata Helichus fastigiatus - Helichus fastigatus Stenelmis crenata Elmid? - Helichus lithophilus Beetle - Ptilodactyla Elmidae - Stenelmis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Elateriformia)
Superfamily Byrrhoidea (Pill, Water and Toe-winged Beetles)
Numbers
11 families in our area, 13 total(1)
Internet References
Aquatic Beetles of Texas: Distribution Records and References - Stephen W. Ziser, Austin Community College, Dept of Biology. 2008-2012 (2)