Table Of ContentCOMMON	SPIDERS	OF	NORTH	AMERICA
The	 purpose	 of	 the	 American	 Arachnological	 Society	 is	 to	 further	 the	 study	 of	 Arachnids
worldwide,	 foster	 closer	 cooperation	 and	 understanding	 between	 amateur	 and	 professional
arachnologists,	and	to	publish	the	Journal	of	Arachnology.	http://www.americanarachnology.org/
COMMON	SPIDERS
of	NORTH	AMERICA
Richard	A.	Bradley
Illustrations	by	Steve	Buchanan
Sponsored	by	the	American	Arachnological	Society
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University	of	California	Press
Berkeley	and	Los	Angeles,	California	University	of	California	Press,	Ltd.
London,	England	©2013	by	The	Regents	of	the	University	of	California	Library
of	Congress	Cataloging-in-Publication	Data	Bradley,	Richard	Alan.
		Common	spiders	of	North	America	/	Richard	A.	Bradley	;	illustrations	by	Steve
Buchanan	;	sponsored	by	the	American	Arachnological	Society.
				p.cm.
		Includes	bibliographical	references	and	index.
		ISBN	978-0-520-27488-4	(cloth	:	alk.	paper)	eISBN	978-0-520-95450-2
		1.	Spiders—North	America—Identification.	I.	Buchanan,	Steve.	II.	American
Arachnological	Society.	III.	Title.
QL458.41.A1B73			2013
595.4'8097—dc23															2012018390
Manufactured	in	China
19	18	17	16	15	14	13	12
10		9		8		7		6		5		4		3		2		1
The	 paper	 used	 in	 this	 publication	 meets	 the	 minimum	 requirements	 of
ANSI/NISO	Z39.48-1992	(R	2002)	(Permanence	of	Paper).	
Cover	illustration:	Steve	Buchanan.
TO	MY	PARENTS,	MARJORIE	AND	WESLEY	BRADLEY,	
FOR	FOSTERING	A	DEEP	RESPECT	AND	CURIOSITY	ABOUT
THE	NATURAL	WORLD,
AND	MY	BROTHER,	DAVE,	
FOR	SHARING	MANY	JOYFUL	HOURS	
EXPLORING	AND	CELEBRATING	WILD	PLACES.
CONTENTS
List	of	Plates
Color	Plates
	
Preface	and	Acknowledgments
Finding,	Studying,	and	Identifying	Spiders
	
SPIDERS:	AN	INTRODUCTION
FINDING	AND	STUDYING	SPIDERS
IDENTIFYING	SPIDERS
KEYS	TO	FAMILIES	WITHIN	GROUPS
Under	Debris	Group
Space-filling	Web	Group
Sheet	Weavers	Group
Orb-shaped	Web	Group
Funnel-shaped	Web	Group
Sixeyed	Spiders	Group
Jumping	Spiders	Group
Crablike	Spiders	Group
Surface	Hunters	Group
Ground	Hunters	Group
Foliage	Hunters	Group
Mygalomorph	Group
Tiny	Spiders	Group
Spider	Accounts
	
FAMILY	AGELENIDAE	•	funnel	weavers
FAMILY	AMAUROBIIDAE	•	hackledmesh	weavers
FAMILY	AMPHINECTIDAE	•	amphinectids
FAMILY	ANAPIDAE	•	ground	orbweavers
FAMILY	ANTRODIAETIDAE	•	foldingdoor	trapdoor	spiders
FAMILY	ANYPHAENIDAE	•	ghost	spiders
FAMILY	ARANEIDAE	•	orbweavers
FAMILY	ATYPIDAE	•	purseweb	spiders
FAMILY	CAPONIIDAE	•	bright	lungless	spiders
FAMILY	CLUBIONIDAE	•	sac	spiders
FAMILY	CORINNIDAE	•	antmimic	spiders
FAMILY	CTENIDAE	•	wandering	spiders
FAMILY	CTENIZIDAE	•	trapdoor	spiders
FAMILY	CYBAEIDAE	•	soft	spiders
FAMILY	CYRTAUCHENIIDAE	•	waferlid	trapdoor	spiders
FAMILY	DEINOPIDAE	•	ogrefaced	spiders
FAMILY	DESIDAE	•	desids
FAMILY	DICTYNIDAE	•	meshweavers
FAMILY	DIGUETIDAE	•	desertshrub	spiders
FAMILY	DIPLURIDAE	•	funnelweb	spiders
FAMILY	DYSDERIDAE	•	woodlouse	spiders
FAMILY	FILISTATIDAE	•	crevice	weavers
FAMILY	GNAPHOSIDAE	•	stealthy	ground	spiders
FAMILY	HAHNIIDAE	•	combtailed	spiders
FAMILY	HERSILIIDAE	•	longspinneret	spiders
FAMILY	HOMALONYCHIDAE	•	dusty	desert	spiders
FAMILY	HYPOCHILIDAE	•	lampshade	weavers
FAMILY	LEPTONETIDAE	•	midget	cave	spiders
FAMILY	LINYPHIIDAE	•	sheetweb	weavers
FAMILY	LIOCRANIDAE	•	spinylegged	sac	spiders
FAMILY	LYCOSIDAE	•	wolf	spiders
FAMILY	MECICOBOTHRIIDAE	•	midget	funnelweb	tarantulas
FAMILY	MIMETIDAE	•	pirate	spiders
FAMILY	MITURGIDAE	•	prowling	spiders
FAMILY	MYSMENIDAE	•	dwarf	cobweb	weavers
FAMILY	NEMESIIDAE	•	wishbone	spiders
FAMILY	NESTICIDAE	•	cave	cobweb	spiders
FAMILY	OCHYROCERATIDAE	•	midget	ground	weavers
FAMILY	OECOBIIDAE	•	flatmesh	weavers
FAMILY	OONOPIDAE	•	goblin	spiders
FAMILY	OXYOPIDAE	•	lynx	spiders
FAMILY	PHILODROMIDAE	•	running	crab	spiders
FAMILY	PHOLCIDAE	•	cellar	spiders
FAMILY	PIMOIDAE	•	large	hammockweb	spiders
FAMILY	PISAURIDAE	•	nursery	web	spiders
FAMILY	PLECTREURIDAE	•	spurlipped	spiders
FAMILY	PRODIDOMIDAE	•	prodidomids
FAMILY	SALTICIDAE	•	jumping	spiders
FAMILY	SCYTODIDAE	•	spitting	spiders
FAMILY	SEGESTRIIDAE	•	tubeweb	spiders
FAMILY	SELENOPIDAE	•	flatties
FAMILY	SICARIIDAE	•	sixeyed	brown	spiders
FAMILY	SPARASSIDAE	•	huntsman	spiders
FAMILY	SYMPHYTOGNATHIDAE	•	dwarf	orbweavers
FAMILY	TELEMIDAE	•	longlegged	cave	spiders
FAMILY	TENGELLIDAE	•	tengellids
FAMILY	TETRAGNATHIDAE	•	longjawed	orbweavers
FAMILY	THERAPHOSIDAE	•	tarantulas
FAMILY	THERIDIIDAE	•	cobweb	weavers
FAMILY	THERIDIOSOMATIDAE	•	ray	orbweavers
FAMILY	THOMISIDAE	•	crab	spiders
FAMILY	TITANOECIDAE	•	rock	weavers
FAMILY	TRECHALEIDAE	•	longlegged	water	spiders
FAMILY	ULOBORIDAE	•	hackled	orbweavers
FAMILY	ZODARIIDAE	•	zodariids
FAMILY	ZORIDAE	•	zorids
FAMILY	ZOROCRATIDAE	•	zorocratids
FAMILY	ZOROPSIDAE	•	zoropsids
	
Glossary
References
Index
	
For	a	printable	scale	showing	relative	sizes	of	spiders,	download	a	PDF	from
www.ucpress.edu/go/commonspiders.
Description:Spiders are among the most diverse groups of terrestrial invertebrates, yet they are among the least studied and understood. This first comprehensive guide to all 68 spider families in North America beautifully illustrates 469 of the most commonly encountered species. Group keys enable identificatio