Species list, Checklist of Class Arachnida (Arachnids) for Middlesex (Butler County, Pennsylvania, USA)

Ants	Arachnids
Bees	Beetles
Booklice	Bugs
Bumblebees	Butterflies
Cicadas	Crane flies
Dragonflies	Earwigs
Flies	Isopods
Locusts	Mantises
Mayflies	Mosquitoes
Myriapods	Net-winged
Plant-parasitic	Scorpion flies
Termites	Wasps

Taxonomy & Distribution
Browser for Arthropods

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INSECTOIDGERENGDARK LIGHT

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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Middlesex (Butler County, Pennsylvania, USA)

Class

Arachnida
Lamarck, 1801
Arachnids

4
5
5

Families
Genera
Species

Taxom

List of families for Middlesex (Butler County Pennsylvania)
4 Families width 5 Species

Cheliferidae Risso, 1826		1	Species	Taxom
Amblyommidae Banks, 1907		1	Species	Taxom
Tetragnathidae Menge, 1866	Elongated Orb Weavers	2	Species	Taxom
Garypidae Simon, 1879		1	Species	Taxom

Genera for Middlesex (Butler County Pennsylvania)
5 Genera with 5 Species

Chelifer Geoffroy, 1758		1	Species	Taxom
Dermacentor Koch, 1821	Dog Ticks	1	Species	Taxom
Glenognatha Simon, 1894		1	Species	Taxom
Synsphyronus J. C. Chambe..., 1943		1	Species	Taxom
Tetragnatha Latreille, 1842	Four-jawed spider	1	Species	Taxom

Species list for Middlesex (Butler County Pennsylvania)
5 Species

Chelifer cancroides Linnaeus, 1758	Book pseudoscorpion
Dermacentor variabilis Say, 1821	American dog tick
Glenognatha foxi McCook, 1894	Longjawed orb weavers
Synsphyronus mimetus Chamberlin, 1943	Costate mountainsnail
Tetragnatha viridis Walckenaer, 1842	Green Long-Jawed Spider

Subnodes of Arachnida with occurrences in Middlesex (Butler County Pennsylvania)

Subclass	Dromopoda Shultz, 1990	2 2 2	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	2 3 3	Families Genera Species	Taxom

Arachnida (Lamarck 1801)

Links, sources and further information

Arachnida at biolcoll.utu.fi
Arachnida at wiki.spinnen-forum.de
Arachnida at spiderling.de
Arachnida at wsc.nmbe.ch
Arachnida at artfakta.se
Arachnida at biodiversity.org.au
Arachnida at dyntaxa.se
Arachnida at gbif.org
Arachnida at irmng.org
Arachnida at itis.gov
Arachnida at marinespecies.org