Steatoda nobilis m

Common Name:
Family: Theridiidae
Scientific Name: Steatoda nobilis
Size: See Image 2

Trashline orb weaver m

Common Name: trashline orb weaver
Family: Araneidae
Scientific Name: Cyclosa turbinata
Size: See Image 2

Theridion goodnightorum m

Common Name:
Family: Theridiidae
Scientific Name: Theridion goodnightorum
Size: 2.7mm

Araneus diadematus f

Common Name:
Family: Araneidae
Scientific Name: Araneus diadematus
Size: See Image4

Metepeira foxi m

Common Name:
Family: Araneidae
Scientific Name: Metepeira foxi
Size: 2.7 – 4.5 mm

Johnson jumper f

Common Name: Johnson Jumper
Family: Salticidae
Scientific Name: Phidippus johnsoni
Size: 8 – 13 mm

Bold jumper f

Common Name: bold jumper
Family: Salticidae
Scientific Name: Phidippus audax
Size: See Image 1

Uloborus diversus f

Common Name:
Family: Uloboridae
Scientific Name: Uloborus diversus
Size: 3.2 – 4.7 mm

Uloborus diversus m

Common Name:
Family: Ulorboridae
Scientific Name: Uloborus diversus
Size: 2.1 – 2.7 mm

Metepeira crassipes m

Common Name:
Family: Araneidae
Scientific Name: Metepeira crassipes
Size: See Image 5

Metepeira crassipes f

Common Name:
Family: Araneidae
Scientific Name: Metepeira crassipes
Size: 5.9 – 7.2 mm

Metepeira spinipes f

Common Name:
Family: Araneidae
Scientific Name: Metepeira spinipes
Size: 6 mm

Trashline orb weaver f

Common Name: Trashline orb weaver
Family: Araneidae
Scientific Name: Cyclosa conica
Size: See Image 1

Trashline orb weaver m

Common Name: trashline orb weaver
Family: Araneidae
Scientific Name: Cyclosa conica
Size: See Image 5

Trashline orb weaver f

Common Name: trashline orb weaver
Family: Araneidae
Scientific Name: Cyclosa turbinata
Size: See Image 3

Banded garden spider f

Common Name: banded garden spider
Family: Ananeidae
Scientific Name: Argiope trifasciata
Size: 15 – 25 mm

Silver garden spider m

Common Name: silver garden spider
Family: Araneidae
Scientific Name: Argiope argentata
Size: 3.7 – 4.7 mm

Silver garden spider f

Common Name: silver garden spider
Family: Araneidae
Scientific Name: Argiope argentata
Size: 12 – 16 mm

Theridion punctipes f

Common Name:
Family: Theridiidae
Scientific Name: Theridion punctipes
Size: 2.5 – 4.2 mm

Yellow garden spider f

Common Name: yellow garden spider
Family: Araneidae
Scientific Name: Argiope aurantia
Size: 19 – 28 mm

Mimetus hesperus m

Common Name:
Family: Mimetidae
Scientific Name: Mimetus hesperus
Size: See Image 5

Dictyna agressa m

Common Name:
Family: Dictynidae
Scientific Name: Dictyna agressa
Size: See Image 1

Bolas spider m

Common Name: bolas spider
Family: Araneidae
Scientific Name: Mastophora cornigera
Size: See Image 1

Bolas spider f

Common Name: bolas spider
Family: Araneidae
Scientific Name: Mastophora cornigera
Size: 12 mm

Metaltella simoni m

Common Name:
Family: Desidae
Scientific Name: Metaltella simoni
Size: See Image 2

Metaltella simoni f

Common Name:
Family: Desidae
Scientific Name: Metaltella simoni
Size: 8 – 9 mm

Neriene digna f

Common Name:
Family: Linyphiidae
Scientific Name: Neriene digna
Size: See Image 4

Linyphantes sps 1 m

Common Name:
Family: Linyphiidae
Scientific Name: Linyphantes sps 1
Size: 2 mm

Theridion murarium m

Common Name:
Family: Theridiidae
Scientific Name: Theridion murarium
Size: See Image 2

Theridion kawea f

Common Name:
Family: Theridiidae
Scientific Name: Theridion kawea
Size: See Image 1

Asagena pulcher f

Common Name:
Family: Theridiidae
Scientific Name: Asagena pulcher
Size: See Image 3

Asagena fulva f

Common Name:
Family: Theridiidae
Scientific Name: Asagena fulva
Size: 3 – 6.5 mm

Anelosimus analyticus m

Common Name:
Family: Theridiidae
Scientific Name: Anelosimus analyticus
Size: 3.2 mm

Psilochorus utahensis f

Common Name:
Family: Pholcidae
Scientific Name: Psilochorus utahensis
Size: 5.7 mm

Psilochorus californiae m

Common Name:
Family: Pholcidae
Scientific Name: Psilochorus californiae
Size: 2.4 mm

Psilochorus californiae f

Common Name:
Family: Pholcidae
Scientific Name: Psilochorus californiae
Size: 2.7 mm

Tidarren haemorrhoidale f

Common Name:
Family: Theridiidae
Scientific Name: Tidarren haemorrhoidale
Size: See Image 2

Hololena dana f

Common Name:
Family: Agelenidae
Scientific Name: Hololena dana
Size: 11.2 mm

Funnel web spider m

Common Name: funnel web weaver
Family: Agelenidae
Scientific Name: Hololena santana
Size: 11 mm

Funnel web spider f

Common Name: funnel web spider
Family: Agelenidae
Scientific Name: Hololena santan

Hololena tentativa f

Common Name:
Family: Agelenidae
Scientific Name: Hololena tentativa
Size: 13.5 mm

Cryptachaea blattea m

Common Name:
Family: Theridiidae
Scientific Name: Cryptachaea blattea
Size: See Image 6

Araneus andrewsi f

Common Name:
Family: Araneidae
Scientific Name: Araneus andrewsi
Size: See Image 6

Araneus montereyensis f

Common Name:
Family: Araneidae
Scientific Name: Araneus montereyensis
Size: See Image 6

Araneus montereyensis m

Common Name:
Family: Araneidae
Scientific Name: Araneus montereyensis
Size: See Image 1

Eriophora edax f

Common Name:
Family: Araneidae
Scientific Name: Eriophora edax
Size: See Image 3

Eriophora edax m

Common Name:
Family: Araneidae
Scientific Name: Eriophora edax
Size: See Image 1

Western spotted orbweaver f

Common Name: Western spotted orbweaver
Family: Araneidae
Scientific Name: Neoscona oaxacensis
Size: 11 – 17 mm

Western spotted orbweaver m

Common Name: Western spotted orbweaver
Family: Araneidae
Scientific Name: Neoscona oaxacensis
Size: 5 – 12 mm

Dewdrop spider f

Common Name: dewdrop spider
Family: Theridiidae
Scientific Name: Argyrodes elevatus
Size: See Image 2

Dewdrop spider m

Common Name: dewdrop spider
Family: Theridiidae
Scientific Name: Argyrodes elevatus
Size: Argyrodes elevatus

Sassacus vitis m

Common Name:
Family: Salticidae
Scientific Name: Sassacus vitis
Size: See Image 4

Sassacus vitis f

Common Name:
Family: Salticidae
Scientific Name: Sassacus vitis
Size: See Image 1

Salticus palpalis m

Common Name:
Family: Salticidae
Scientific Name: Salticus palpalis
Size: 4.5 mm

Salticus palpalis f

Common Name:
Family: Salticidae
Scientific Name: Salticus palpalis
Size: See Image 1

Pantropical jumper m

Common Name: pantropical jumper
Family: Salticidae
Scientific Name: Plexippus paykulli
Size: See Image 1

Johnson jumper m

Common Name: Johnson Jumper
Family: Salticidae
Scientific Name: Phidippus johnsoni
Size: 7.2 – 11 mm

Johnson jumper f

Common Name: Johnson Jumper
Family: Salticidae
Scientific Name: Phidippus johnsoni
Size: 8 – 13 mm

Phidippus californicus f

Common Name:
Family: Salticidae
Scientific Name: Phidippus californicus
Size: 8.7 – 15.5 mm

Bold jumper f

Common Name: bold jumper
Family: Salticidae
Scientific Name: Phidippus audax
Size: See Image 1

Bold jumper m

Common Name: bold jumper
Family: Salticidae
Scientific Name: Phidippus audax
Size: See Image 6

Bold jumper f

Common Name: bold jumper
Family: Salticidae
Scientific Name: Phidippus audax
Size: See Image 3

Phidippus adumbratus m

Common Name:
Family: Salticidae
Scientific Name: Phidippus adumbratus
Size: 6.4 – 8.0 mm

Phidippus adumbratus f

Common Name:
Family: Salticidae
Scientific Name: Phidippus adumbratus
Size: See Image 1

Pelegrina aeneola f

Common Name:
Family: Salticidae
Scientific Name: Pelegrina aeneola
Size: 5 – 6 mm

Mexigonas morosus m

Common Name:
Family: Salticidae
Scientific Name: Mexigonus morosus
Size: See Image 5

Mexigonas morosus f

Common Name:
Family: Salticidae
Scientific Name: Mexigonus morosus
Size: See Image 6

Messua limbata f

Common Name:
Family: Salticidae
Scientific Name: Messua limbata
Size: See Image 2

Marpissa robusta m

Common Name:
Family: Salticidae
Scientific Name: Marpissa robusta
Size: 8.5 mm

Habronattus pyrrithrix m

Common Name:
Family: Salticidae
Scientific Name: Habronattus pyrrithrix
Size: See Image 6

Habronattus pyrrithrix f

Common Name:
Family: Salticidae
Scientific Name: Habronattus pyrrithrix
Size: 8 mm

Habronattus klauserii m

Common Name:
Family: Salticidae
Scientific Name: Habronattus klauserii
Size: about 5 mm

Evarcha proszynskii m

Common Name:
Family: Salticidae
Scientific Name: Evarcha proszynskii
Size: 4.3 – 5.5 mm

Chalcoscirtus diminutus m

Common Name:
Family: Salticidae
Scientific Name: Chalcoscirtus diminutus
Size: See Image 6

Neriene digna m

Common Name:
Family: Linyphiidae
Scientific Name: Neriene digna
Size: See Image 3

Misumenoides formosipes f

Common Name: whitebanded crab spider
Family: Thomisidae
Scientific Name: Misumenoides formosipes
Size: See Image 3

Mecaphesa californica m

Common Name:
Family:Thomisidae
Scientific Name: Mecaphesa californica
Size: See Image 1 and 5

Phanias harfordi m

Common Name:
Family: Salticidae
Scientific Name: Phanias harfordi
Size: See Image 1

Chalcoscirtus diminutus f

Common Name:
Family: Salticidae
Scientific Name: Chalcoscirtus diminutus
Size: 2.6 mm

Green lynx spider m

Common Name: green lynx spider
Family: Oxyopidae
Scientific Name: Peucetia viridans
Size: See Image 4

Green lynx spider f

Common Name: green lynx spider
Family: Oxyopidae
Scientific Name: Peucetia viridans
Size: 14 – 16 mm

Oxyopes scalaris m

Common Name:
Family: Oxyopidae
Scientific Name: Oxyopes scalaris
Size: See Image 2

Western lynx spider f

Common Name: Western lynx spider
Family: Oxyopidae
Scientific Name: Oxyopes scalaris
Size: 7 – 8 mm

Striped lynx spider m

Common Name: striped lynx spider
Family: Oxyopidae
Scientific Name: Oxyopes salticus
Size: 5.7 -6.7 mm

Oxyopes salticus m

Common Name:
Family: Oxyopidae
Scientific Name: Oxyopes salticus
Size: 4 – 4.5 mm

Synageles noxiosus f

Common Name:
Family: Salticidae
Scientific Name: Synageles noxiosus
Size: See Image 5

Neon avalonus f

Common Name:
Family: Salticidae
Scientific Name: Neon avalonus
Size: See Image 1

Pardosa sp1 f

Common Name:
Family: Lycosidae
Scientific Name: Pardosa sp1
Size: about 6 – 7 mm

thinlegged wolf spider f

Common Name: thinlegged wolf spider
Family: Lycosidae
Scientific Name: Pardosa californica
Size: See Image 1

Hogna sp. f

Common Name:
Family: Lycosidae
Scientific Name: Hogna sp.
Size: See Image 2

Hogna antelacuna m

Common Name:
Family: Lycosidae
Scientific Name: Hogna antelacuna
Size: See Image 3

Hogna antelacuna f

Common Name:
Family: Lycosidae
Scientific Name: Hogna antelacuna
Size: 10 – 24 mm

Alopecosa kochii f

Common Name:
Family: Lycosidae
Scientific Name: Alopecosa kochii
Size: See Image 4

Zelotes funestus f

Common Name:
Family: Gnaphosidae
Scientific Name: Zelotes funestus
Size: 4 – 7 mm

Marinarozelotes lyonneti m

Common Name:
Family: Gnaphosidae
Scientific Name: Marinarozelotes lyonneti
Size: See Image 5

Heser nilicola m

Common Name:
Family: Gnaphosidae
Scientific Name: Heser nilicola
Size: 3 mm

Heser nilicola f

Common Name:
Family: Gnaphosidae
Scientific Name: Heser nilicola
Size: See Image 5

Creugas bajulus f

Common Name:
Family: Corinnidae
Scientific Name: Creugas bajulus
Size: See Image 2

Castianeira thalia m

Common Name:
Family: Corinnidae
Scientific Name: Castianeira thalia
Size: See Image 1

Trachelas pacificus m

Common Name:
Family: Trachelidae
Scientific Name: Trachelas pacificus
Size: See Image 5

Meriola californica f

Common Name:
Family: Trachelidae
Scientific Name: Meriola californica
Size: 3.7 – 4.7 mm

Meriola arcifera m

Common Name:
Family: Trachelidae
Scientific Name: Meriola arcifera
Size: See Image 2

Sergiolus montanus f

Common Name:
Family: Gnaphosidae
Scientific Name: Sergiolus montanus
Size: 5 – 8 mm

Sergiolus gertschi m

Common Name:
Family: Gnaphosidae
Scientific Name: Sergiolus gertschi
Size: See Image 5

Scopoides catharius m

Common Name:
Family: Gnaphosidae
Scientific Name: Scopoides catharius
Size: See Image 1

Dysdera crocata m

Common Name:
Family: Dysderidae
Scientific Name: Dysdera crocata
Size: 9 – 10 mm

Dysdera crocata f

Common Name:
Family: Dysderidae
Scientific Name: Dysdera crocata
Size: 11 – 15 mm

Dysdera crocata i

Common Name:
Family: Dysderidae
Scientific Name: Dysdera crocata
Size: 9 mm

Falconina gracilis m

Common Name:
Family: Corinnidae
Scientific Name: Falconina gracilis
Size: See Image 1

Falconina gracilis f

Common Name:
Family: Corrinnidae
Scientific Name: Falconina gracilis
Size: See Image 4

American house spider f

Common Name: American house spider
Family: Theridiidae
Scientific Name: Parasteatoda tepidariorum
Size: 8 mm

Parasteatoda tepidariorum m

Common Name: American house spider
Family: Theridiidae
Scientific Name: Parasteatoda tepidariorum
Size: 3.8 – 4.7 mm

false black widow f

Common Name: false black widow
Family: Theridiidae
Scientific Name: Steatoda grossa
Size: 5.9 – 10.5 mm

Steatoda triangulosa f

Common Name:
Family: Theridiidae
Scientific Name: Steatoda triangulosa
Size: 3.6 – 5.9 mm

western black widow f

Common Name: western black widow
Family: Theridiidae
Scientific Name: Latrodectus hesperus
Size: See Image 6

western black widow m

Common Name: western black widow
Family: Theridiidae
Scientific Name: Latrodectus hesperus
Size: See Image 3

Kukulkania utahana f

Common Name:
Family: Filistatidae
Scientific Name: Kukulkania utahana
Size: 14 mm

southern house spider m

Common Name: southern house spider
Family: Filistatidae
Scientific Name: Kukulcania hibernalis
Size: See Image 2

southern house spider f

Common Name: southern house spider
Family: Filistatidae
Scientific Name: Kukulcania hibernalis
Size: See Image 1

Dictyna calcarata m

Common Name:
Family: Dictynidae
Scientific Name: Dictyna calcarata
Size: 3 mm

Dictyna calcarata f

Common Name:
Family: Dictynidae
Scientific Name: Dictyna calcarata
Size: See Image 3

Badumna longinqua m

Common Name:
Family: Desidae
Scientific Name: Badumna longinqua
Size: See Image 4

Badumna longinqua f

Common Name:
Family: Desidae
Scientific Name: Badumna longinqua
Size: 8 – 13 mm

Tidarren sisyphoides m

Common Name:
Family: Theridiidae
Scientific Name: Tidarren sisyphoides
Size: See Image 3

Tidarrren sisyphoides f

Common Name:
Family: Theridiidae
Scientific Name: Tidarrren sisyphoides
Size: See Images 2 & 3

Theridion submissum m

Common Name:
Family: Theridiidae
Scientific Name: Theridion submissum
Size: See Image 3

Steatoda nobilis f

Common Name:
Family: Theridiidae
Scientific Name: Steatoda nobilis
Size: See Image 4

American house spider m

Common Name: American house spider
Family: Theridiidae
Scientific Name: Parasteatoda tepidariorum
Size: 3.8 – 4.7 mm

brown widow m

Common Name: brown widow
Family: Theridiidae
Scientific Name: Latrodectus geometricus
Size: See Image 4

Brown widow f

Common Name: brown widow
Family: Theridiidae
Scientific Name: Latrodectus geometricus
Size: See Image 6

Theridion melanurum f

Common Name:
Family: Theridiidae
Scientific Name: Theridion melanurum
Size: See Image 4

Neoscona crucifera m

Common Name:
Family: Araneidae
Scientific Name: Neoscona crucifera
Size: 4.5 – 15 mm

Neoscona crucifera f

Common Name:
Family: Araneidae
Scientific Name: Neoscona crucifera
Size: 8.5 – 19.7 mm

Araneus gemma m

Common Name:
Family: Araneidae
Scientific Name: Araneus gemma
Size: 5.8 – 8.5 mm

Araneus gemma f

Common Name:
Family: Araneidae
Scientific Name: Araneus gemma
Size: See Image 3

Araneus detrimentosus f

Common Name:
Family: Araneidae
Scientific Name: Araneus detrimentosus
Size: See Image 1

Pantropical Jumper f

Common Name: Pantropical jumper
Family: Salticidae
Scientific Name: Plexippus paykulli
Size: 10 – 12 mm

Mexigonus minutus m

Common Name:
Family: Salticidae
Scientific Name: Mexigonus minutus
Size: See Image 1

Gray wall jumper m

Common Name: gray wall jumper
Family: Salticidae
Scientific Name: Menemerus bivittatus
Size: See Image 6

Gray wall jumper f

Common Name: gray wall jumper
Family: Salticidae
Scientific Name: Menemerus bivittatus
Size: See Image 1

Colonus hesperus m

Common Name:
Family: Salticidae
Scientific Name: Colonus hesperus
Size: 6 mm

Colonus hesperus f

Common Name:
Family: Salticidae
Scientific Name: Colonus hesperus
Size: 7 mm

Philodromus dispar m

Common Name:
Family: Philodromidae
Scientific Name: Philodromus dispar
Size: See Image 2

Agrarian sac spider m

Common Name: agrarian sac spider
Family: Cheiracanthiidae
Scientific Name: Cheiracanthium mildei
Size: See Image 4

Agrarian sac spider f

Common Name: agrarian sac spider
Family: Cheiracanthiidae
Scientific Name: Cheiracanthium mildei
Size: See Image 4

Marbled cellar spider f

Common Name: marbled cellar spider
Family: Pholcidae
Scientific Name: Holocnemus pluchei
Size: 7 – 8 mm

Marbled cellar spider m

Common Name: marbled cellar spider
Family: Pholcidae
Scientific Name: Holocnemus pluchei
Size: 6 mm

Longbodied cellar spider f

Common Name: long-bodied cellar spider
Family: Pholcidae
Scientific Name: Pholcus phalangioides
Size: See Image 6

Longbodied cellar spider m

Common Name: longbodied cellar spider
Family: Pholcidae
Scientific Name: Pholcus phalangioides
Size: See Image 3

Cryptachaea porteri f

Common Name:
Family: Theridiidae
Scientific Name: Cryptachaea porteri
Size: See Image 3

Cryptachaea porteri m

Common Name:
Family: Theridiidae
Scientific Name: Cryptachaea porteri
Size: See Image 1

Barn funnel weaver m

Common Name: barn funnel weaver
Family: Agelenidae
Scientific Name: Tegeneria domestica
Size: 6 – 9 mm

Barn funnel weaver f

Common Name: barn funnel weaver
Family: Agelenidae
Scientific Name: Tegenaria domestica
Size: 7.5 – 11.5 mm

Oecobius navus m

Common Name:
Family: Oecobiidae
Scientific Name: Oecobius navus
Size: 2 – 2.6 mm

Oecobius navus f

Common Name:
Family: Oecobiidae
Scientific Name: Oecobius navus
Size: 2.5 – 2.9 mm

Trachelas pacificus f

Common Name:
Family: Trachelidae
Scientific Name: Trachelas pacificus
Size: 6 -7.7 mm

Meriola californica f

Common Name:
Family: Trachelidae
Scientific Name: Meriola californica
Size: 3.7 – 4.7 mm

Theridion melanurum m

Common Name:
Family: Theridiidae
Scientific Name: Theridion melanurum
Size: See Image 4

Golden huntsman spider m

Common Name: golden huntsman spider
Family: Sparassidae
Scientific Name: Olios giganteus
Size: 10 -17 mm

Golden huntsman spider f

Common Name: golden huntsman spider
Family: Sparrassidae
Scientific Name: Olios giganteus
Size: 19 – 21 mm

Golden huntsman spider f

Common Name: golden huntsman spider
Family: Sparassidae
Scientific Name: Olios giganteus
Size: See Image 2

Huntsman spider f

Common Name: huntsman spider
Family: Sparassidae
Scientific Name: Heteropoda venatoria
Size: See Image 2

Spitting spider f

Common Name: Spitting Spider
Family: Scytodidae
Scientific Name: Scytodes fusca
Size: See Image 2

Prodidomus rufus m

Common Name:
Family: Gnaphosidae
Scientific Name: Prodidomus rufus
Size: See Image 3

Urozelotes rusticus m

Common Name:
Family: Gnaphosidae
Scientific Name: Urozelotes rusticus
Size: 5.8 – 7.2 mm

Scotophaeus blackwalli m

Common Name:
Family: Gnaphosidae
Scientific Name: Scotophaeus blackwalli
Size: See Image 4

Herpyllus propinquus f

Common Name:
Family: Gnaphosidae
Scientific Name: Herpyllus propinquus
Size: 9.3 – 11 mm

Herphyllus propinquus m

Common Name:
Family: Gnaphosidae
Scientific Name: Herphyllus propinquus
Size: See Image 1

Scotophaeus blackwalli f

Common Name:
Family: Gnaphosidae
Scientific Name: Scotophaeus blackwalli
Size: See Image Four

Hibana incursa m

Common Name:
Family: Anyphaenidae
Scientific Name: Hibana incursa
Size: 6mm

Hibana incursa f

Family: Anyphaenidae
Scientific Name: Hibana incursa
Size: 6 mm

Anyphaena pacifica m

Common Name:
Family: Anyphaenidae
Scientific Name: Anyphaena pacifica
Size: See image four

Anyphaena californica m

Common Name:
Family: Anyphaenidae
Scientific Name: Anyphaena californica
Size: 4.7 mm

Anyphaena californica f

Common Name:
Family: Anyphaenidae
Scientific Name: Anyphaena californica
Size: See Picture 1