Spiders
Order Araneae
The Spiders (Order Araneae) includes 1,848 species across 82 families and 552 genera in our directory.
About Spiders
As of 2023, 51,673 spider species in 136 families have been recorded, though an estimated 150,000 species exist. Spiders rank 7th in total species diversity among all organism orders. Only 0.5% of spider species pose any risk to human health.
Economic Impact
The global spider community kills an estimated 400-800 million tons of prey annually (2017 study). Spiders provide billions of dollars in natural pest control for agriculture. Spider silk is 5× stronger than steel of the same diameter, driving a biomaterials research industry.
Ecological Role
Spider venom contains complex peptides with diverse pharmacological activities, making them valuable for drug development research. Spiders produce up to 7 types of silk from specialized glands. Spider silk genes have been inserted into mammals and plants for biotech applications.
Families in Araneae (82)
Species in Araneae (1,848)
Redlegged purseweb spider
Sphodros rufipes
Regal Jumping Spider
Phidippus regius
Rhomphaea fictilium
Rhomphaea fictilium
Rhysodromus alascensis
Rhysodromus alascensis
Rhysodromus histrio
Rhysodromus histrio
Robertus banksi
Robertus banksi
Robertus frontatus
Robertus frontatus
Robertus laticeps
Robertus laticeps
Robertus pumilus
Robertus pumilus
Robertus riparius
Robertus riparius
Rualena avila
Rualena avila
Rugathodes aurantius
Rugathodes aurantius
Running Crab Spider
Philodromus rufus
Salticus austinensis
Salticus austinensis
Salticus peckhamae
Salticus peckhamae
San Bernardino Hills Trapdoor Spider
Aptostichus atomarius
Sarlacc Trapdoor Spider
Aptostichus sarlacc
Satilatlas marxi
Satilatlas marxi
Schizocosa aulonia
Schizocosa aulonia
Schizocosa crassipalpata
Schizocosa crassipalpata
Schizocosa mccooki
Schizocosa mccooki
Schizocosa mimula
Schizocosa mimula
Schizocosa minnesotensis
Schizocosa minnesotensis
Schizocosa perplexa
Schizocosa perplexa
Schizocosa retrorsa
Schizocosa retrorsa
Schizocosa saltatrix
Schizocosa saltatrix
Schizocosa stridulans
Schizocosa stridulans
Scoloderus nigriceps
Scoloderus nigriceps
Scopoides cambridgei
Scopoides cambridgei
Scopoides catharius
Scopoides catharius
Scopoides naturalisticus
Scopoides naturalisticus
Scotinella minnetonka
Scotinella minnetonka
Scotinella pugnata
Scotinella pugnata
Scotinella sculleni
Scotinella sculleni
Scotinotylus pallidus
Scotinotylus pallidus
Scotinotylus sanctus
Scotinotylus sanctus
Scylaceus pallidus
Scylaceus pallidus
Scytodes dorothea
Scytodes dorothea
Scytodes longipes
Scytodes longipes
Scytodes univittata
Scytodes univittata
Segestria bella
Segestria bella
Segestria pacifica
Segestria pacifica
Selenops actophilus
Selenops actophilus
Selenops aissus
Selenops aissus
Selenops insularis
Selenops insularis
Selenops submaculosus
Selenops submaculosus
Septentrinna bicalcarata
Septentrinna bicalcarata
Sergiolus angustus
Sergiolus angustus
Sergiolus capulatus
Sergiolus capulatus
Sergiolus cyaneiventris
Sergiolus cyaneiventris
Sergiolus decoratus
Sergiolus decoratus
Sergiolus gertschi
Sergiolus gertschi
Sergiolus minutus
Sergiolus minutus
Sergiolus ocellatus
Sergiolus ocellatus
Sergiolus stella
Sergiolus stella
Sergiolus unimaculatus
Sergiolus unimaculatus
Shamrock Spider
Araneus trifolium
Shortbodied Cellar Spider
Spermophora senoculata
Sierra Dome Spider
Neriene litigiosa
Silver Garden Spider
Argiope argentata
Simziella major
Simziella major
Singa eugeni
Singa eugeni
Singa keyserlingi
Singa keyserlingi
Sisicus penifusifer
Sisicus penifusifer
Slender Ant-mimic Jumping Spider
Synemosyna formica
Socalchemmis gertschi
Socalchemmis gertschi
Socalchemmis idyllwild
Socalchemmis idyllwild
Socalchemmis kastoni
Socalchemmis kastoni
Socalchemmis miramar
Socalchemmis miramar
Sosippus californicus
Sosippus californicus
Sosippus floridanus
Sosippus floridanus
Sosippus mimus
Sosippus mimus
Sougambus bostoniensis
Sougambus bostoniensis
Soulgas corticarius
Soulgas corticarius
Southeastern Wandering Spider
Anahita punctulata
Southern Coastal Dune Trapdoor Spider
Aptostichus simus
Southern House Spider
Kukulcania hibernalis
Southwestern Trapdoor Spider
Eucteniza relata
Sowbug Killer Spider
Dysdera crocata
Spined Micrathena Spider
Micrathena gracilis
Spirembolus demonologicus
Spirembolus demonologicus
Spirembolus dispar
Spirembolus dispar
Spirembolus mundus
Spirembolus mundus
Spotted Orbweaver
Neoscona crucifera
Stealthy Ground Spider
Cesonia bilineata
Steatoda castanea
Steatoda castanea
no rights reserved
Steatoda grandis
Steatoda grandis
Steatoda hespera
Steatoda hespera
Steatoda mexicana
Steatoda mexicana
Steatoda palomara
Steatoda palomara
Steatoda punctulata
Steatoda punctulata
Steatoda transversa
Steatoda transversa
Steatoda washona
Steatoda washona
Stemmops bicolor
Stemmops bicolor
Stemonyphantes blauveltae
Stemonyphantes blauveltae
Stephen Colbert's Trapdoor Spider
Aptostichus stephencolberti
Stone Spider
Pardosa lapidicina
Striped Lynx Spider
Oxyopes salticus
Strotarchus beepbeep
Strotarchus beepbeep
Strotarchus piscatorius
Strotarchus piscatorius