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Checklist for Suborder Polyphaga Emery, 1886 (Polyphags)
and region Watts (Perry County, Pennsylvania, USA)


Class
 		Insecta
Linnaeus, 1758
Insects, True insects		14
20
20		Families
Genera
Species		 
Taxom
 

Subclass
 		Pterygota
Lang, 1888
Winged insects		14
20
20		Families
Genera
Species		 
Taxom
 

Infraclass
 		Neoptera
van der Wulp, 1890
Modern Wing-folding insects		14
20
20		Families
Genera
Species		 
Taxom
 

Superorder
 		Holometabola
Heider, 1889
Holometabolous Insects		11
13
13		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 Watts (Perry County Pennsylvania)
2 Families width 2 Species
Psephenidae Lacordaire, 1854Water pennies1SpeciesTaxom
Elmidae Curtis, 1830Drive beetles1SpeciesTaxom


Genera for Watts (Perry County Pennsylvania)
2 Genera with 2 Species
Psephenus Haldeman, 18441SpeciesTaxom
Stenelmis Dufour, 18241SpeciesTaxom


Species list for Watts (Perry County Pennsylvania)
2 Species
Psephenus herricki Dekay, 1844Echo Cave Beetle
Stenelmis crenata Say, 1824

Subnodes of Polyphaga with occurrences in Watts (Perry 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