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Checklist for Suborder Polyphaga Emery, 1886 (Polyphags)
and region Osgood (Mercer County, Pennsylvania, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		2
2
2		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		2
2
2		Families
Genera
Species		 
Taxom
 

Infraclass
 		Neoptera
van der Wulp, 1890
Modern Wing-folding insects		2
2
2		Families
Genera
Species		 
Taxom
 

Superorder
 		Holometabola
Heider, 1889
Holometabolous Insects		2
2
2		Families
Genera
Species		 
Taxom
 

Order
 		Coleoptera
Linnaeus, 1758
Beetles, Coleopterans		2
2
2		Families
Genera
Species		 
Taxom
 

Suborder
 		Polyphaga
Emery, 1886
Polyphags		2
2
2		Families
Genera
Species		 
Taxom
 


List of families for Osgood (Mercer County Pennsylvania)
2 Families width 2 Species
Dryopidae Billberg, 1820Long toed water beetle1SpeciesTaxom
Elmidae Curtis, 1830Drive beetles1SpeciesTaxom


Genera for Osgood (Mercer County Pennsylvania)
2 Genera with 2 Species
Helichus Erichson, 18521SpeciesTaxom
Stenelmis Dufour, 18241SpeciesTaxom


Species list for Osgood (Mercer County Pennsylvania)
2 Species
Helichus basalis LeConte, 1852
Stenelmis crenata Say, 1824

Subnodes of Polyphaga with occurrences in Osgood (Mercer County Pennsylvania)
InfraorderElateriformia
Crowson, 1960
2
2
2		Families
Genera
Species
Taxom



Links, sources and further information
Polyphaga at artfakta.se
Polyphaga at dyntaxa.se
Polyphaga at gbif.org
Polyphaga at irmng.org
Polyphaga at itis.gov
Polyphaga at itis.gov