Species list, Checklist of Infraorder Araneomorphi for San Pablo (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 San Pablo (Contra Costa County, California, USA)

Class	Arachnida Lamarck, 1801 Arachnids	4 4 4	Families Genera Species	Taxom
Subclass	Micrura Ehrenberg, 1831	4 4 4	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 San Pablo (Contra Costa County)
4 Families width 4 Species

Amaurobiidae Thorell, 1870	Amaurobiids	1	Species	Taxom
Gnaphosidae Pocock, 1898	Flat-bellied ground spiders	1	Species	Taxom
Sparassidae (Bertkau, 1872)	Giant crab spiders	1	Species	Taxom
Theridiidae (Sundevall, 1833)	Cobweb And Widow Spiders	1	Species	Taxom

Genera for San Pablo (Contra Costa County)
4 Genera with 4 Species

Callobius Chamberlin, 1884	Hacklemesh Weaver	1	Species	Taxom
Drassyllus Chamberlin, 1900		1	Species	Taxom
Heteropoda Latreille, 1767		1	Species	Taxom
Latrodectus Walckenaer, 1775	Black widow spider	1	Species	Taxom

Species list for San Pablo (Contra Costa County)
4 Species

Callobius severus Eugène Simon, 1884
Drassyllus insularis Banks, 1900
Heteropoda venatoria (Linnaeus, 1767)	⇒ Heteropoda simplex Jäger & Ono, 2000
Latrodectus mactans (Fabricius, 1775)	⇒ Latrodectus tredecimguttatus Rossi, 1790