Species list, Checklist of Infraorder Araneomorphi for Brentwood (Contra Costa County, California, 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

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INSECTOIDGERENGDARK LIGHT

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Checklist for Infraorder Araneomorphi Smith, 1902
and region Brentwood (Contra Costa County, California, USA)

Class	Arachnida Lamarck, 1801 Arachnids	7 7 6	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	6 6 6	Families Genera Species	Taxom
Infraclass	Megoperculata Börner, 1902	4 4 4	Families Genera Species	Taxom
Order	Araneae Clerck, 1757 Spider, Spiders, True Spiders	4 4 4	Families Genera Species	Taxom
Suborder	Araneomorphae Smith, 1902 True Spiders	4 4 4	Families Genera Species	Taxom
Infraorder	Araneomorphi Smith, 1902	4 4 4	Families Genera Species	Taxom

List of families for Brentwood (Contra Costa County)
4 Families width 4 Species

Corinnidae Karsch, 1880	Ant-like Sac Spiders	1	Species	Taxom
Salticidae (Blackwall, 1842)	Jumping Spider	1	Species	Taxom
Segestriidae Simon, 1893	Six-eyed Spiders	1	Species	Taxom
Tengellidae Dahl, 1908	Tengellid spiders	1	Species	Taxom

Genera for Brentwood (Contra Costa County)
4 Genera with 4 Species

Apochinomma Pavesi, 1896		1	Species	Taxom
Myrmarachne MacLeay, 1980	Antmimicking spider	1	Species	Taxom
Segestria Latreille, 1891		1	Species	Taxom
Socalchemmis Platnick & U..., 1919		1	Species	Taxom

Species list for Brentwood (Contra Costa County)
4 Species

Apochinomma formica Eugène Simon, 1896
Myrmarachne platypalpus (Bradoo, 1980)	⇒ Myrmarachne platypalpa Bradoo, 1980
Segestria pacifica Richard C. B..., 1891
Socalchemmis dolichopus Ralph Vary C..., 1919